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Exam Code: RH-302
Exam Name: RedHat (Red Hat Certified Engineer on Redhat Enterprise Linux 5 (Labs))

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NO.1 It will ask for the Starting Cylinder: Use the Default by pressing Enter Key.

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NO.2 mke2fs -j /dev/hda? To create ext3 filesystem.

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NO.3 vi /etc/fstab

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NO.4 mount /dev/hda? /mnt/neo
4. Your System is going use as a router for 172.24.0.0/16 and 172.25.0.0/16. Enable the
IP Forwarding.
Answer and Explanation:
1. echo "1" >/proc/sys/net/ipv4/ip_forward
2. vi /etc/sysctl.conf
net.ipv4.ip_forward=1
/proc is the virtual filesystem, containing the information about the running kernel. To change the
parameter of running kernel you should modify on /proc. From Next reboot the system, kernel will take the
value from /etc/sysctl.conf.
5. Some users home directory is shared from your system. Using showmount -e localhost command, the
shared directory is not shown. Make access the shared users home directory.
Answer and Explanation:
1. Verify the File whether Shared or not ? : cat /etc/exports
2. Start the nfs service: service nfs start
3. Start the portmap service: service portmap start
4. Make automatically start the nfs service on next reboot: chkconfig nfs on
5. Make automatically start the portmap service on next reboot: chkconfig portmap on
6. Verify either sharing or not: showmount -e localhost
7. Check that default firewall is running on system ? if running flush the iptables using iptables -F and stop
the iptables service.
6. neo user tried by:
dd if=/dev/zero of=/home/neo/somefile bs=1024 count=70
files created successfully. Again neo tried to create file having 70K using following command:
dd if=/dev/zero of=/home/neo/somefile bs=1024 count=70
But he is unable to create the file. Make the user can create the file less then 70K.
Answer and Explanation:
Very Tricky from redhat. Actually is giving scenario to you to implement quota to neo user. You should
apply the quota to neo user on /home that neo user shouldn't occupied space more than 70K.
1. vi /etc/fstab
LABEL=/home /home ext3 defaults,usrquota 0 0
To enable the quota on filesystem you should mount the filesystem with usrquota for user quota and
grpquota for group quota.
2. touch /home/aquota.user ->Creating blank quota database file.
3. mount -o remount /home-> Remounting the /home with updated mount options.
You can verify that /home is mounted with usrquota options or not using mount command.
4. quotacheck -u /home ->Initialization the quota on /home
5. edquota -u neo /home-> Quota Policy editor
See the snapshot
Disk quotas for user neo (uid 500):
Filesystem blocks soft hard inodes soft hard
/dev/mapper/vo-myvol 2 30 70 1 0 0
Can you set the hard limit 70 and soft limit as you think like 30.
Verify using the repquota /home command.
7. One Logical Volume is created named as myvol under vo volume group and is mounted. The Initial
Size of that Logical Volume is 124MB. Make successfully that the size of Logical Volume 245MB without
losing any data. The size of logical volume 240MB to 255MB will be acceptable.
Answer and Explanation:
1. First check the size of Logical Volume: lvdisplay /dev/vo/myvol
2. Increase the Size of Logical Volume: lvextend -L+121M /dev/vo/myvol
3. Make Available the size on online: resize2fs /dev/vo/myvol
4. Verify the Size of Logical Volume: lvdisplay /dev/vo/myvol
5. Verify that the size comes in online or not: df -h
We can extend the size of logical Volume using the lvextend command. As well as to decrease the size of
Logical Volume, use the lvresize command. In LVM v2 we can extend the size of Logical Volume without
unmount as well as we can bring the actual size of Logical Volume on online using ext2online command.
8. Quota is implemented on /data but not working properly. Find out the Problem and implement the quota
to user1 to have a soft limit 60 inodes (files) and hard limit of 70 inodes (files).
Answer and Explanation:
Quotas are used to limit a user's or a group of users' ability to consume disk space. This prevents a small
group of users from monopolizing disk capacity and potentially interfering with other users or the entire
system. Disk quotas are commonly used by ISPs, by Web hosting companies, on FTP sites, and on
corporate file servers to ensure continued availability of their systems.
Without quotas, one or more users can upload files on an FTP server to the point of filling a filesystem.
Once the affected partition is full, other users are effectively denied upload access to the disk. This is also
a reason to mount different filesystem directories on different partitions. For example, if you only had
partitions for your root (/) directory and swap space, someone uploading to your computer could fill up all
of the space in your root directory (/). Without at least a little free space in the root directory (/), your
system could become unstable or even crash.
You have two ways to set quotas for users. You can limit users by inodes or by kilobytesized disk blocks.
Every Linux file requires an inode. Therefore, you can limit users by the number of files or by absolute
space. You can set up different quotas for different filesystems. For example, you can set different quotas
for users on the /home and /tmp directories if they are mounted on their own partitions.
Limits on disk blocks restrict the amount of disk space available to a user on your system.
Older versions of Red Hat Linux included LinuxConf, which included a graphical tool to configure quotas.
As of this writing, Red Hat no longer has a graphical quota configuration tool. Today, you can configure
quotas on RHEL only through the command line interface.
1. vi /etc/fstab /dev/hda11 /data ext3 defaults,usrquota 1 2
2. Either Reboot the System or remount the partition.
Mount -o remount /dev/hda11 /data
3. touch /data/aquota.user
4. quotacheck -ufm /data
5. quotaon -u /data
6. edquota -u user1 /data and Specified the Soft limit and hard limit on opened file.
To verify either quota is working or not:
Soft limit specify the limit to generate warnings to users and hard limit can't cross by the user. Use the
quota command or repquota command to monitor the quota information.
9. One Logical Volume named lv1 is created under vg0. The Initial Size of that Logical Volume is 100MB.
Now you required the size 500MB. Make successfully the size of that Logical Volume 500M without losing
any data. As well as size should be increased online.
Answer and Explanation:
The LVM system organizes hard disks into Logical Volume (LV) groups. Essentially,physical hard disk
partitions (or possibly RAID arrays) are set up in a bunch of equalRH302 sized chunks known as Physical
Extents (PE). As there are several other concepts associated with the LVM system, let's start with some
basic definitions:
. Physical Volume (PV) is the standard partition that you add to the LVM mix.
Normally, a physical volume is a standard primary or logical partition. It can also be a RAID array.
. Physical Extent (PE) is a chunk of disk space. Every PV is divided into a number of equal sized PEs.
Every PE in a LV group is the same size. Different LV groups can have different sized PEs.
. Logical Extent (LE) is also a chunk of disk space. Every LE is mapped to a specific PE.
. Logical Volume (LV) is composed of a group of LEs. You can mount a filesystem such as /home and /var
on an LV.
. Volume Group (VG) is composed of a group of LVs. It is the organizational group for LVM. Most of the
commands that you'll use apply to a specific VG.
1. Verify the size of Logical Volume: lvdisplay /dev/vg0/lv1
2. Verify the Size on mounted directory: df -h or df -h mounted directory name
3. Use : lvextend -L+400M /dev/vg0/lv1
4. resize2fs /dev/vg0/lv1 to bring extended size online.
5. Again Verify using lvdisplay and df -h command.
10. Create one partitions having size 100MB and mount it on /data.
Answer and Explanation:
1. Use fdisk /dev/hda ->To create new partition.
2. Type n-> For New partitions
3. It will ask for Logical or Primary Partitions. Press l for logical.
4. It will ask for the Starting Cylinder: Use the Default by pressing Enter Key.
5. Type the Size: +100M ->You can Specify either Last cylinder of Size here.
6. Press P to verify the partitions lists and remember the partitions name.
7. Press w to write on partitions table.
8. Either Reboot or use partprobe command.
9. Use mkfs -t ext3 /dev/hda?
Or
mke2fs -j /dev/hda? To create ext3 filesystem.
10. vi /etc/fstab
Write:
/dev/hda? /data ext3 defaults 1 2
11. Verify by mounting on current Sessions also:
mount /dev/hda? /data
11. You are new System Administrator and from now you are going to handle the system and your main
task is Network monitoring, Backup and Restore. But you don't know the root password. Change the root
password to redhat and login in default Runlevel.
Answer and Explanation:
When you Boot the System, it starts on default Runlevel specified in /etc/inittab:
Id:?:initdefault:
When System Successfully boot, it will ask for username and password. But you don't know the root's
password. To change the root password you need to boot the system into single user mode. You can pass
the kernel arguments from the boot loader.
1. Restart the System.
2. You will get the boot loader GRUB screen.
3. Press a and type 1 or s for single mode
ro root=LABEL=/ rhgb queit s
4. System will boot on Single User mode.
5. Use passwd command to change.
6. Press ctrl+d
12. There are more then 400 Computers in your Office. You are appointed as a System Administrator. But
you don't have Router. So, you are going to use your One Linux Server as a Router. How will you enable
IP packets forward?
Answer and Explanation:
1. /proc is the virtual filesystem, we use /proc to modify the kernel parameters at running time.
# echo "1" >/proc/sys/net/ipv4/ip_forward
2. /etc/sysctl.conf when System Reboot on next time, /etc/rc.d/rc.sysinit scripts reads the file
/etc/sysctl.conf.-> To enable the IP forwarding on next reboot also you need to set the parameter.
net.ipv4.ip_forward=1
Here 0 means disable, 1 means enable.
13. You Completely Install the Redhat Enterprise Linux 5 on your System. While start the system, it's
giving error to load X window System. How will you fix that problem and make boot successfully run X
Window System.
Answer and Explanation:
Think while Problems occurred on booting System on Runlevel 5 (X Window)
1. /tmp is full or not
2. Quota is already reached
3. Video card or resolution or monitor is misconfigured.
4. xfs service is running or not.
Do These:
1. df -h /tmp /tmp is full remove the unnecessary file
2. quota username if quota is already reached remove unnecessary file from home directory.
3. Boot the System in runlevel 3. you can pass the Kernel Argument from boot loader.
4. Use command: system-config-display It will display a dialog to configure the monitor, Video card,
resolution etc.
5. Set the Default Runlevel 5 in /etc/inittab
id:5:initdefault:
6. Reboot the System you will get the GUI login Screen.
14. There are two different networks, 192.168.0.0/24 and 192.168.1.0/24. Your System is in
192.168.0.0/24 Network. One RHEL 5 Installed System is going to use as a Router. All required
configuration is already done on Linux Server. Where 192.168.0.254 and 192.168.1.254 IP Address
are assigned on that Server. How will make successfully ping to 192.168.1.0/24 Network's Host?
Answer and Explanation:
1. vi /etc/sysconfig/network
GATEWAY=192.168.0.254
OR
vi /etc/sysconf/network-scripts/ifcfg-eth0
DEVICE=eth0
BOOTPROTO=static
ONBOOT=yes
IPADDR=192.168.0.?
NETMASK=255.255.255.0
GATEWAY=192.168.0.254
2. service network restart
Explanation: Gateway defines the way to exit the packets. According to System working as a router for
two networks have IP Address 192.168.0.254 and 192.168.1.254.
To get the hosts on 192.168.1.0/24 should go through 192.168.0.254.
15. Make a swap partition having 100MB. Make Automatically Usable at System Boot Time.
Answer and Explanation:
1. Use fdisk /dev/hda ->To create new partition.
2. Type n-> For New partition
3. It will ask for Logical or Primary Partitions. Press l for logical.
4. It will ask for the Starting Cylinder: Use the Default by pressing Enter Key.
5. Type the Size: +100M ->You can Specify either Last cylinder of Size here.
6. Press P to verify the partitions lists and remember the partitions name. Default System ID is 83 that
means Linux Native.
7. Type t to change the System ID of partition.
8. Type Partition Number
9. Type 82 that means Linux Swap.
10. Press w to write on partitions table.
11. Either Reboot or use partprobe command.
12. mkswap /dev/hda? ->To create Swap File system on partition.
13. swapon /dev/hda? ->To enable the Swap space from partition.
14. free -m ->Verify Either Swap is enabled or not.
15. vi /etc/fstab
/dev/hda? swap swap defaults 0 0
16. Reboot the System and verify that swap is automatically enabled or not.
16. You are a System administrator. Using Log files very easy to monitor the system.
Now there are 50 servers running as Mail, Web, Proxy, DNS services etc. You want to centralize the logs
from all servers into on LOG Server. How will you configure the LOG Server to accept logs from remote
host ?
Answer and Explanation:
By Default system accept the logs only generated from local host. To accept the Log from other host
configure:
1. vi /etc/sysconfig/syslog
SYSLOGD_OPTIONS="-m 0 -r"
Where
-m 0 disables 'MARK' messages.
-r enables logging from remote machines
-x disables DNS lookups on messages recieved with -r
2. service syslog restart
17. You are giving the debug RHCT exam. The examiner told you that the password of root is redhat.
When you tried to login displays the error message and redisplayed the login screen. You changed the
root password, again unable to login as a root.
How will you make Successfully Login as a root.
Answer and Explanation:
When root unable to login into the system think:
1. Is password correct?
2. Is account expired?
3. Is terminal Blocked?
Do these Steps:
. Boot the System on Single user mode.
. Change the password
. Check the account expire date by using chage -l root command.
If account is expired, set net expire date: chage -E "NEVER" root
1. Check the file /etc/securetty Which file blocked to root login from certain terminal.
2. If terminal is deleted or commented write new or uncomment.
3. Reboot the system and login as a root.

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NO.5 Write:

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NO.6 Press P to verify the partitions lists and remember the partitions name.

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NO.7 Set the Hostname station?.example.com where ? is your Host IP Address.
Answer and Explanation:
1. hostname station?.example.com This will set the host name only for current session. To set hostname
permanently.
2. vi /etc/sysconfig/network
HOSTNAME=station?.example.com
3. service network restart

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NO.8 mkdir /mnt/neo

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NO.9 Type the Size: +100M-> You can Specify either Last cylinder of Size here.

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NO.10 You are giving RHCT Exam and in your Exam paper there is a written, make successfully ping to
192.168.0.254.
Answer and Explanation:
In Network problem thinks to check:
1. IP Configuration: use ifconfig command either IP is assigned to interface or not?
2. Default Gateway is set or not?
3. Hostname is set or not?
4. Routing problem is there?
5. Device Driver Module is loaded or not?
6. Device is activated or not?
Check In this way:
1. use ifconfig command and identify which IP is assigned or not.
2. cat /etc/sysconfig/network What, What is written here. Actually here are these parameters.
NETWORKING=yes or no
GATEWAY=x.x.x.x
HOSTNAME=?
NISDOMAIN=?
- Correct the file
3. Use vi /etc/sysconfig/network-scirpts/ifcfg-eth0 and check the proper options
DEVICE=eth0
ONBOOT=yes
BOOTPROTO=static
IPADDR=x.x.x.x
NETMAKS=x.x.x.x
GATEWAY=x.x.x.x
4. Use service network restart or start command

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NO.11 Use mkfs -t ext3 /dev/hda? Where ? is your partition number

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NO.12 Use the passwd command
2. Dig Server1.example.com, Resolve to successfully through DNS Where DNS server is 172.24.254.254
Answer and Explanation:
#vi /etc/resolv.conf
nameserver 172.24.254.254
#dig server1.example.com
#host server1.example.com
DNS is the Domain Name System, which maintains a database that can help your computer translate
domain names such as www.Redhat.com to IP addresses such as 216.148.218.197. As no individual
DNS server is large enough to keep a database for the entire Internet, they can refer requests to other
DNS servers.
DNS is based on the named daemon, which is built on the BIND (Berkeley Internet Name Domain)
package developed through the Internet Software Consortium Users wants to access by name so DNS
will interpret the name into ip address. You need to specify the Address if DNS server in each and every
client machine. In Redhat Enterprise Linux, you need to specify the DNS server into /etc/resolv.conf file.
After Specifying the DNS server address, you can verify using host, dig and nslookup commands.

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NO.13 Or

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NO.14 Create the partition having 100MB size and mount it on /mnt/neo
Answer and Explanation:
1. Use fdisk /dev/hda-> To create new partition.
2. Type n-> For New partitions
3. It will ask for Logical or Primary Partitions. Press l for logical.

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NO.15 Press w to write on partitions table.

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NO.16 Verify by mounting on current Sessions also:

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NO.17 Change the root Password to redtophat
Answer and Explanation:
1. Boot the system in Single user mode

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NO.18 /dev/hda? /mnt/neo ext3 defaults 1 2

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NO.19 The System you are using is for NFS (Network File Services). Some important data are shared from
your system. Make automatically start the nfs and portmap services at boot time.
Answer and Explanation:
We can control the services for current session and for next boot time also. For current Session, we use
service servicename start or restart or stop or status. For automatically on next reboot time:
1. chkconfig servicename on or off
eg: chkconfig nfs on
chkconfig portmap on
or
ntsysv
Select the nfs and portmap services.
2. Reboot the system and identify whether services are running or not.

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NO.20 Either Reboot or use partprobe command.

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Exam Name: RedHat (Red Hat Certified System Administrator - RHCSA)

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NO.1 Add 3 users: harry, natasha, tom.
The requirements: The Additional group of the two users: harry, Natasha is the admin group. The user:
tom's login shell should be non-interactive.
Answer:
# useradd -G admin harry
# useradd -G admin natasha
# useradd -s /sbin/nologin tom
# id harry;id Natasha (Show additional group)
# cat /etc/passwd
(Show the login shell)
OR
# system-config-users

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NO.2 Configure your Host Name, IP Address, Gateway and DNS.
Host name: station.domain40.example.com
/etc/sysconfig/network
hostname=abc.com
hostname abc.com
IP Address:172.24.40.40/24
Gateway172.24.40.1
DNS:172.24.40.1
Answer:
# cd /etc/syscofig/network-scripts/
# ls
# vim ifcfg-eth0 (Configure IP Address, Gateway and DNS) IPADDR=172.24.40.40
GATEWAY=172.24.40.1
DNS1=172.24.40.1
# vim /etc/sysconfig/network
(Configure Host Name)
HOSTNAME= station.domain40.example.com
OR
Graphical Interfaces:
System->Preference->Network Connections (Configure IP Address, Gateway and DNS) Vim
/etc/sysconfig/network
(Configure Host Name)

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Exam Name: Oracle (Oracle Database 11g: Performance Tuning)

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NO.1 You are working on an online transaction processing (OLTP) system. You detected free buffer waits
events for your database instance running in a machine that has multiple CPUs. You increased the
database buffer cache size as the first step. After a few hours of work on the database, further
investigation shows that the same event is being recorded.
What would be your next step to avoid this event in future?
A. Decrease the value of the DBWR_IO_SLAVES parameter.
B. Set the USE_INDIRECT_DATA_BUFFERS parameter to TRUE.
C. Increase the value of the DB_WRITER_PROCESSES parameter.
D. Increase the value of the DB_FILE_MULTIBLOCK_READ_COUNT parameter.
ANSWER: C

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NO.2 After running SQL Performance Analyzer (SPA), you observe a few regressed SQL statements in the
SPA output. Identify the two actions that you would suggest for these regressed SQL statements.
(Choose two.)
A.Running SQL Access Advisor
B.Adding them to SQL Plan Baseline
C.Submitting them to SQL Tuning Advisor
D.Running Automatic Database Diagnostic Monitor (ADDM)
ANSWER: BC

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NO.3 View the Exhibit and examine a portion of the output obtained from the following query:
SQL> SELECT * FROM v$sys_time_model;
Select three correct interpretations of the time model statistics. (Choose three.)
A. DB time includes the wait time of all the nonidle and idle user sessions.
B. SQL execute elapsed time includes the time spent in performing fetches of query results.
C. DB CPU includes the CPU time spent on database user-level calls and background CPU time.
D. SQL execute elapsed time includes components of the hard parse elapsed time like bind elapsed time.
E. DB time includes the connection management call elapsed time excluding the background process
time.
ANSWER: BDE

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NO.4 View the Exhibit exhibit1 to examine the series of SQL commands and parameter settings.
View the Exhibit exhibit2 to examine the plans available in the SQL plan baseline.
The first plan (in red) is created when OPTIMIZER_MODE is set to ALL_ROWS and the second plan (in
blue) is created when OPTIMIZER_MODE is set to FIRST_ROWS.
Which SQL plan baseline would be used if the SQL query in exhibit1 is executed again when the value of
OPTIMIZER_MODE is set to FIRST_ROWS?
A. the second plan, because it is a fixed plan
B. the first plan, because it is an accepted plan
C. the second plan, because it is the latest generated plan in FIRST_ROW mode
D. A new plan, because the second plan in FIRST_ROW mode is not an accepted plan
ANSWER: B

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NO.5 View Exhibit1 to examine the description of the CUSTOMERS table.
The CUSTOMERS table has been updated heavily today. In a frequently used SQL statement, you notice
that estimated rows and the actual number of rows fetched differ greatly. The COUNTRY_ID column has
an index.
View Exhibit2 and examine the query execution plan.
What would you recommend to improve the optimizer's estimation?
A. setting the STATISTICS_LEVEL parameter to ALL
B. setting the OPTIMIZER_USE_PENDING_STATISTICS parameter to FALSE
C. creating extended statistics for the CUST_LAST_NAME, CUST_ID, and CUST_TOTAL columns
D. updating the statistics for the CUSTOMERS table by using the
DBMS_STATS.GATHER_TABLE_STATS
procedure
ANSWER: D

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NO.6 A user in a session executed the following SQL statement to set the optimizer mode:
ALTER SESSION SET OPTIMIZER_MODE = ALL_ROWS
What impact would it have on the goal of the optimizer for that session? (Choose all that apply.)
A. Statement level OPTIMIZER_MODE hints take precedence over the session-level setting.
B. The OPTIMIZER_MODE parameter set at instance level takes precedence over the session-level
value.
C. The optimizer uses a cost-based approach, regardless of the presence of statistics; it optimizes with a
goal of best response time.
D. The optimizer uses a cost-based approach for all SQL statements in the session, regardless of the
presence of statistics; it optimizes with a goal of best throughput.
ANSWER: AD

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NO.7 You plan to use adaptive thresholds as part of the performance tuning activity. You decide to increase
the window size of the default moving window baseline for all metric observations and comparisons in
your database. The following error occurs when you try to increase the window size through Enterprise
Manager:
Failed to commit: ORA-13541: system moving window baseline size (1296000) greater than retention
(1036800) ORA-06512: at "SYS.DBMS_WORKLOAD_REPOSITORY", line 601 ORA-06512: at line 2
Which action would allow you to perform the preceding task successfully?
A. increasing the flashback retention period
B. increasing the retention period for SQL Management Base
C. increasing the undo retention period for the database instance
D. increasing the Automatic Workload Repository (AWR) retention period
ANSWER: D

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NO.8 The columns CUST_CITY, CUST_STATE_PROVINCE, and COUNTRY_ID are frequently used
together in the WHERE clause of the queries. The CUSTOMERS table is a big table with 20 GB of data.
You notice that the selectivity for these three columns varies from the selectivity that the optimizer
calculates.
What would you recommend to influence the selectivity calculated by the optimizer?
A. creating function-based indexes by concatenating all the columns
B. updating histogram statistics for these columns by using the DBMS_STATS.GATHER_TABLE_STATS
procedure
C. using the DBMS_STATS.CREATE_EXTENDED_STATS function to create a virtual column and create
index on the virtual column
D. using the DBMS_STATS.CREATE_EXTENDED_STATS function to create a virtual column and the
DBMS_STATS.GATHER_TABLE_STATS procedure to collect statistics on the virtual column
ANSWER: D

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NO.9 You are working on an online transaction processing (OLTP) system. By day most of the application
users perform queries accessing the most recently added or modified rows. The applications have most
of the queries based on multiple tables. But at night, some batch processing is also done.
Which two actions would you recommend to choose a goal for the optimizer based on the needs of your
application? (Choose two.)
A.setting the OPTIMIZER_MODE parameter to ALL_ROWS at the instance level
B.setting the OPTIMIZER_MODE parameter to FIRST_ROWS_n at the instance level
C.asking the developer to add a hint /*ALL_ROWS*/ in the long-running batch processing queries
D.asking the developer to add a hint /*FIRST_ROWS_n*/ in the long-running batch processing queries
ANSWER: BC

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NO.10 Examine the initialization parameter values for the instance given below:
NAME TYPE VALUE
------------------------------------ ----------- ------------------
optimizer_capture_sql_plan_baselines boolean FALSE
optimizer_dynamic_sampling integer 2
optimizer_features_enable string 11.1.0.6
optimizer_index_caching integer 0
optimizer_index_cost_adj integer 100
optimizer_mode string ALL_ROWS
db_file_multiblock_read_count integer 64
You notice that the one of the queries is using a full table scan (view Exhibit1) instead of index unique
scan (view Exhibit2). The index is present on the column that is accessed in the WHERE clause of the
query. The cost for a full table scan is more than that for an index unique scan.
Why would the optimizer choose full table scan over index unique scan? (Choose all that apply.)
A. The OPTIMIZER_INDEX_COST_ADJ initialization parameter is set to a low value.
B. The OPTIMIZER_INDEX_COST_ADJ initialization parameter is set to a high value.
C. The DB_FILE_MULTIBLOCK_READ_COUNT initialization parameter is set to a low value.
D. The statistics for the table and all the indexes associated with the table are not current.
ANSWER: BD

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NO.11 Examine the initialization parameter values for the instance given below:
NAME TYPE VALUE
------------------------------------ ----------- ------------------
optimizer_capture_sql_plan_baselines boolean FALSE
optimizer_dynamic_sampling integer 2
optimizer_features_enable string 11.1.0.6
optimizer_index_caching integer 0
optimizer_index_cost_adj integer 100
optimizer_mode string ALL_ROWS
db_file_multiblock_read_count integer 64
The index created on the column used in the WHERE clause of the query. You notice that the query is not
using the index. Instead of an index scan, a full table scan is used.
View the Exhibit and examine the autotrace output for a query.
What could be the reason for it? (Choose all that apply.)
A. The OPTIMIZER_INDEX_COST_ADJ initialization parameter has a low value.
B. The DB_FILE_MULTIBLOCK_READ_COUNT initialization parameter has a low value.
C. The statistics for the table and all the indexes associated with the table are not current.
D. The table has less than DB_FILE_MULTIBLOCK_READ_COUNT blocks under the high-water mark.
ANSWER: CD

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NO.12 You work as a DBA for a company and you have the responsibility of managing one of its online
transaction processing (OLTP) systems. The database encountered performance-related problems and
you generated an Automatic Workload Repository (AWR) report to investigate it further.
View the Exhibits and examine the AWR report.
What could be the problem in this database?
A.Java pool is not configured.
B.The CPU in the system is slow.
C.The shared pool size is inadequate.
D.The database buffer cache is inadequate.
E.The OPEN_CURSORS parameter is set to a small value.
ANSWER: C

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NO.13 Which three factors influence the optimizer's behavior while choosing an optimization approach and
goal for a SQL statement? (Choose three.)
A.parsing of a SQL statement
B.operating system (OS) statistics
C.object statistics in the data dictionary
D.the OPTIMIZER_MODE initialization parameter
E.optimizer SQL hints for changing the query optimizer goal
ANSWER: CDE

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NO.14 You are working on a decision support system (DSS). The index is available on the COUNTRY_ID
column of the CUSTOMERS table.
View the Exhibit and examine the parameter settings and the query execution plan.
Why is the query using a full table scan instead of an index scan?
A. because the histogram statistics for the COUNTRY_ID column are not updated
B. because the index statistics for the index on the COUNTRY_ID column are not current
C. because the DB_FILE_MULTIBLOCK_READ_COUNT initialization parameter is set to a higher value
D. because the optimizer predicts that most of the blocks in the table are accessed. Therefore, it uses a
full table scan, even though indexes are available.
ANSWER: D

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NO.15 A batch workload that historically completed in the maintenance window between 10:00 PM and
midnight is currently showing poor performance and completing at 2 AM.
To help in the diagnosis of the performance degradation, the senior DBA in your organization asks you to
execute the awrddrpt.sql script to produce a Compare Periods report.
Which two statements are true about the report produced by this script? (Choose two.)
A. It is refreshed automatically based on the moving window baseline.
B. It compares details between any two selected time periods of the same duration.
C. It normalizes the statistics by the amount of time spent on the database for each time period.
D. It compares details between two consecutive time periods of the same or different durations and is
refreshed every 60 minutes.
ANSWER: BC

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NO.16 View Exhibit1 to examine the description of the CUSTOMERS table.
You observed that optimizer selectivity is not accurate when the CUST_STATE_PROVINCE and
COUNTRY_ID columns are used together in the WHERE clause of a query.
View Exhibit2 to examine the query execution plan and the commands executed to gather the statistics.
The optimizer predicts that 20 rows will be processed rather than the 3,341 rows, which is the actual
number of rows returned from the table.
What can you do to make the optimizer detect the actual number of rows?
A. Set the STATISTICS_LEVEL parameter to ALL.
B. Set the OPTIMIZER_USE_PENDING_STATISTICS parameter to FALSE.
C. Create extended statistics for the CUST_STATE_PROVINCE and COUNTRY_ID columns.
D. Increase the STALE_PERCENT value for the CUSTOMERS table by using the
DBMS_STATS.SET_TABLE_PREFS procedure.
ANSWER: C

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NO.17 View Exhibit1 and examine the indexes on the CUSTOMERS table.
The statistics for the CUSTOMERS table have been updated recently by using the following command:
SQL> EXEC DBMS_STATS.GATHER_TABLE_STATS('SH','CUSTOMERS',method_opt=>'FOR ALL
INDEXED COLUMNS SIZE AUTO');
View Exhibit2 to examine a query plan. Even though the index is present on the COUNTRY_ID and
CUST_GENDER columns, the query uses a full table scan. What could be the reason?
A. because the histogram statistics for the COUNTRY_ID column are not updated
B. because the DB_FILE_MULTIBLOCK_READ_COUNT initialization parameter is set to a high value
C. because the optimizer calculates the cost of accessing blocks by using a full table scan to be less as
compared to index scans, even though indexes are available
D. because indexes on CUST_GENDER and COUNTRY_ID columns are of different types, the index on
the CUST_GENDER column is bitmap index, and on COUNTRY_ID columns is btree index.
ANSWER: C

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NO.18 You are working on a development database that was upgraded to Oracle Database 11g from Oracle
Database 9i. An ADDM finding in this database says that the shared pool is inadequately sized, as shown
in the Exhibit.
You diagnosed that this is due to different kinds of workloads and this occurs only during peak hours. You
tried to resize this by shrinking the database buffer cache but that caused inadequate buffer cache
problems. The following are the related parameter settings:
SQL> show parameter sga
NAME TYPE VALUE
------------------------------ --------------- -----------------
lock_sga boolean FALSE
pre_page_sga boolean FALSE
sga_max_size big integer 300M
sga_target big integer 0
SQL> show parameter target
NAME TYPE VALUE
------------------------------ --------------- -----------------
.....
fast_start_mttr_target integer 0
memory_max_target big integer 0
memory_target big integer 0
pga_aggregate_target big integer 100M
sga_target big integer 0
You want to balance the memory between the System Global Area (SGA) components within SGA
without affecting the size of the Program Global Area (PGA).
Which action would solve this problem?
A. Set the SGA_TARGET parameter to 300M.
B. Set the SGA_MAX_SIZE parameter to 400M.
C. Set the MEMORY_TARGET parameter to 100M.
D. Set the MEMORY_MAX_TARGET parameter to 300M.
ANSWER: A

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NO.19 Identify two correct statements about the Active Session History (ASH) data. (Choose two.)
A.A part of SGA memory is used to store ASH data as rolling buffer.
B.The ASH data can be analyzed between any two small time intervals.
C.All ASH data in memory are flushed to disk by MMON in every 3 seconds.
D.All ASH data in memory are flushed to disk by MMNL process whenever the buffer is full.
ANSWER: AB

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NO.20 You observed that some of the queries are performing poorly on the SALES_RECORDS table in your
database.
On further investigation, you find that at the end of each day the contents of the SALES_RECORDS table
are transferred to the SALES table and deleted from the SALES_RECORDS table. The deleted
operations cause the table to be sparsely populated.
You decided to use the ALTER TABLE...SHRINK SPACE COMPACT command to shrink the table.
Why would you choose this method? (Choose all that apply.)
A. because it can be used during peak hours
B. because it avoids unnecessary cursor invalidation
C. because it adjusts the high-water mark (HWM) immediately
D. because you have long-running queries that might span the shrink operation
E. because it does not allow any data manipulation language (DML) operations, thereby making the
shrink
operation faster
ANSWER: ABD

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Exam Code: 1Z0-043
Exam Name: Oracle (Oracle database 10g:Administration ii)

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NO.1 View the Exhibit.
You executed the following command to perform a backup of the USERS tablespace:
RMAN>BACKUP TABLESPACE USERS;
Which type of backup would this command perform?
Exhibit:
A.backup set
B.image copy
C.incremental backup
D.None; the user receives on error indicating that the backup must be specified.
Answer: A

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NO.2 The current time zone for one of the user sessions is set to the database local time zone. For one
application, the user session requires the time zone to be set to the local operating system time zone
without affecting other user sessions.
Which two solutions could the user implement to achieve this objective? (Choose two.)
A.use the ALTER SYSTEM command to change the time zone
B.use the ALTER SESSION command to change the time zone
C.use the ALTER DATABASE command to change the time zone
D.set the value for the operating system variable ORA_SDTZ on the client machine
E.set the value for the operating system variable ORA_SDTZ on the database server machine
Answer: BD

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NO.3 An RMAN backup job fails, displaying the following error:
ORA-19809: limit exceeded for recovery files
Your analysis shows that the Flash Recovery area is full. Which two actions could you take to resolve the
error and avoid this error in the future? (Choose two.)
A.take the backup of the flash recovery area less frequently
B.increase the value of the UNDO_RETENTION initialization parameter
C.change the value of the WORKAREA_SIZE_POLICY initialization parameter to AUTO
D.change the backup retention policy to retain the backups for a smaller period of time
E.increase the value of the DB_RECOVERY_FILE_DEST_SIZE initialization parameter
F.increase the value of the CONTROL_FILE_RECORD_KEEP_TIME initialization parameter
Answer: DE

Oracle   1Z0-043   1Z0-043

NO.4 Immediately after adding a new disk to or removing an existing disk from an Automatic Storage
Management (ASM) instance, you find that the performance of the database decreases initially, until the
addition or removal process is completed. Performance then gradually returns to normal levels.
Which two activities could you perform to maintain a consistent performance of the database while adding
or removing disks? (Choose two.)
A.increase the number of checkpoint processes
B.define the POWER option while adding or removing the disks
C.increase the number of DBWR processes by setting up a higher value for DB_WRITER_PROCESSES
D.increase the number of slave database writer processes by setting up a higher value for
DBWR_IO_SLAVES
E.increase the number of ASM Rebalance processes by setting up a higher value for
ASM_POWER_LIMIT during the disk addition or removal
Answer: BE

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NO.5 In your database, online redo log files are multiplexed and one of the members in a group is lost due to
media failure? How would you recover the lost redo log member?
A.import the database from the last export
B.restore all the members in the group from the last backup
C.drop the lost member from the database and then add a new member to the group
D.restore all the database files from the backup and then perform a complete recovery
E.restore all the database files from the backup and then perform an incomplete recovery
Answer: C

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NO.6 You work as a database administrator at certkiller.com. Your database is open and running in
ARCHIVELOG mode. You take RMAN full backups every Sunday night. On Monday morning, while
querying the user1.employees table, you receive the following error message:
01578. ORACLE data block corrupted (file # 5, block # 51)
ORA-01110: data file 5: '/u01/app/oracle/oradata/orcl/example01.dbf'
You need to rectify the corruption while ensuring the following:
The data file should remain online.
The mean time to recover (MTTR) should be minimal.
You are not using a backup control file and all the archived logs are accessible. Which option would you
choose?
A.flash back the corrupted blocks
B.use the DBMS_REPAIR package
C.use the RMAN TSPITR command
D.use the RMAN BLOCKRECOVER command
E.use the RESTORE DATABASEand RECOVER DATABASE commands
F.investigate the time at which the corruption occurred and perform a point-in-time recovery
Answer: D

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NO.7 One of the tablespaces is read-only in your database. The loss of all control files forced you to re-create
the control file.
Which operation do you need to perform after re-creating the control file and opening the database?
A.drop and re-create the read-only tablespaces
B.rename the read-only data files to their correct file names
C.change the tablespace status from read/write to read-only
D.re-create the read-only tablespace because it is automatically removed
Answer: B

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NO.8 You have set some of the initialization parameters as:
DB_BLOCK_SIZE = 8KB
SGA_MAX_SIZE = 2GB
SGA_TARGET = 0
SHARED_POOL_SIZE = 120MB
DB_CACHE_SIZE = 896MB
STREAM_POOL_SIZE = 0
LARGE_POOL_SIZE = 110 MB
Which two statements are correct? (Choose two.)
A.You cannot set a value for the DB_8K_CACHE_SIZE parameter.
B.If you increase the size of the large pool to 120 MB, then the memory allocated to the shared pool will
be reduced to 110 MB.
C.If the value for SGA_TARGET is changed to 1 GB and SHARED_POOL_SIZE is set to 120 MB, then
memory cannot be taken from the shared pool, even if the shared pool has free space available.
D.If an application attempts to allocate more than 120 MB from the shared pool and free space is
available in the buffer pool, then the free space from the buffer pool is allocated to the shared pool.
Answer: AC

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NO.9 You are performing a block media recovery on the tools01.dbf data file in the SALES database using
RMAN. Which two statements are correct in this scenario? (Choose two.)
A.You must ensure that the SALES database is mounted or open.
B.You must restore a backup control file to perform a block media recovery.
C.You must take the tools01.dbf data file offline before you start a block media recovery.
D.You must put the database in NOARCHIVELOG mode to perform a block media recovery.
E.You can perform only a complete media recovery of individual blocks, point-in-time recovery of
individual data blocks is not supported.
Answer: AE

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NO.10 Consider the following configuration:
/devices/D1 is a member of disk group dgroupA.
/devices/D2 is a member of disk group dgroupA.
/devices/D3 is a member of disk group dgroupA.
You plan to add a new disk,/devices/D4 to the disk group dgroupA.
You execute the following command:
SQL> ALTER DISKGROUP dgroupA ADD DISK '/devices/D*';
Which task would be accomplished by the command?
A.The command adds the new disk, D4, to the disk group.
B.The command would result in an error because the is no disk by the name "'/devices/D*'"
C.The command will be ignored because disks starting with "D" are already members of the disk group.
D.The command would result in an error because no wildcard characters can be used in the disk name.
E.The command first detaches all the member disks starting with "D", and the reattaches them including
the new disk.
Answer: A

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NO.11 You are using Oracle Database 10g. Which statement regarding an incomplete recovery is true?
A.You do not need to restore all the data files.
B.You do not need to open the database with the RESETLOGS operation
C.You do not need to perform a full backup after the RESETLOGS operation.
D.You do not need to recover all the data files to the same system change number (SCN).
Answer: C

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NO.12 You are working on an Oracle Database 10g database. You enabled the Flashback Database feature.
Which two statements regarding flashback logs are true? (Choose two.)
A.Flashback logs are not archived.
B.Flashback logs are maintained in redo log files.
C.Flashback logs are maintained in the Flash Recovery Area.
D.Flashback logs are used to maintain Flashback Database related errors.
E.Flashback logs need to be cleared manually after you disable Flashback Database.
Answer: AC

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NO.13 You observe that a database performance has degraded over a period of time. While investigating the
reason, you find that the size of the database buffer cache is not large enough to cache all the needed
data blocks.
Which advisory component would you refer to, in order to determine that required size of the database
buffer cache?
A.Memory Advisor
B.Segment Advisor
C.SQL Tuning Advisor
D.SQL Access Advisor
E.Automatic Database Diagnostic Monitor (ADDM)
Answer: A

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NO.14 View the Exhibit and examine the Resource Manager settings for the groups at different levels.
Which two effects would be the result of this setting? (Choose two.)
Exhibit:
A.The members of LOW_GROUP would get more priority than those of OTHER_GROUPS.
B.The members of SYS_GROUP would get most of the CPU allocation at level 1.
C.The members of LOW_GROUP would get most of the CPU allocation because it has CPU allocation at
two different levels.
D.The members of LOW_GROUP would get no CPU allocation at level1 if the members of
OTHER_GROUPS are using all the CPU at level 2.
E.The members of SYS_GROUP would get no CPU allocation at level 1 if the members of
OTHER_GROUPS are using all the CPU at level 2.
Answer: AB

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NO.15 The current time is 12:00 noon. You want to recover the USERS tablespace from a failure that
occurred at 11:50 a.m.You discover that the only member of an unarchived redo log group containing
information from 11:40 a.m. onwards is corrupt.
With reference to this scenario, if you are not using Recovery Manager (RMAN), which recovery method
would you use?
A.time-based recovery
B.log sequence recovery
C.cancel-based recovery
D.change-based recovery
Answer: C

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NO.16 You lost the PRODSTD tablespace, which was read/write. The tablespace was read-only when the last
backup was performed. How would you recover the tablespace?
A.restore the tablespace from the backup; there is no need to apply the redo information
B.restore the full database to recover the data up to the point when you performed the backup
C.restore the tablespace from the backup and then perform a recovery using the backup control file
D.restore the tablespace from the backup and then recover the tablespace; all the redo information from
the point when the tablespace was made read/write is applied
Answer: D

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NO.17 You work as a database administrator at certkiller.com. In your production database there is a job,
CALC_STAT, which has been scheduled to run every Friday at 5.00 p.m.CALC_STAT updates the
optimizer statistics for the objects owned by the APPS schema. You want the task to be generic, thereby
allowing users to modify the attributes of the task at run time without affecting the original task.
Which component of Oracle Scheduler must you define to achieve this?
A.Window
B.Program
C.Job class
D.Window group
Answer: B

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NO.18 You executed the following query:
SELECT operation, undo_sql, table_name
FROM flashback_transaction_query
Which statement is correct regarding the query output?
A.It would return information regarding only the last committed transaction.
B.It would return only the active transactions in all the undo segments in the database.
C.It would return only the committed transactions in all the undo segments in the database.
D.It would return both active and committed transactions in all the undo segments in the database.
E.It would return information regarding the transactions that began and were committed in the last 30
minutes.
Answer: D

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NO.19 View the Exhibit.
In your production database, the total waits and the time waited for log file parallel write are significantly
high. While investigating the reason, you find that there are three redo log groups with two members in
each group, and all redo log members are places on a single physical disk.
What action would you take to minimize the waits?
Exhibit:
A.start the log writer slave processes
B.increase the number of redo log files
C.increase the size of the redo log buffer
D.place the redo log files on the different disks
E.increase the number of log writer processes
Answer: D

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NO.20 You are using an Automatic Storage Management (ASM) instance to manage the files of your
production database. You have two disk groups, DG1 and DG2 with one device each.
In the parameter file of the production database, the following parameters have been specified:
DB_CREATE_ONLINE_LOG_DEST_1 = '+dg1'
DB_CREATE_ONLINE_LOG_DEST_2 = '+dg2'
What would be the impact of this setting?
A.When a new log group is added, it would have one member in each disk group.
B.When a new log group is added, it would have two members in each disk group.
C.When a new tablespace is added, it would have one data file in each disk group.
D.When a new log file is added, it would have one member spread across the disk groups.
Answer: A

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Exam Code: 1Z1-202
Exam Name: Oracle (Siebel 8 Consultant Exam)

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NO.1 Which represents a business entity and groups data from one or more tables?
A.Applet
B.Application
C.Business object
D.Business component
Answer: D

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NO.2 You are creating a new view in Siebel Tools. When you attempt to add applets, you do not see the
applet you want to add listed in the Available Applets list. Which two would cause this? (Choose two.)
A.You failed to assign a Project.
B.You picked the wrong Web Template.
C.You selected the wrong Business Object for the view.
D.The applet object definition has Inactive set to FALSE.
E.The Business Component that the applet is based on is not part of the Business Object the view is
based on.
Answer: CE

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NO.3 When should you use explicit primaries through Enterprise Integration Manager?
A.when there is only one child record in the dataset
B.any time you have more than one child record in the dataset
C.when the external system defines which child record should be the primary
D.when the external system does not define which child record should be the primary
Answer: C

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NO.4 Which two clients obtain initialization settings from both the configuration file and Application Object
Manager component parameters? (Choose two.)
A.Web Client
B.Handheld Client
C.Mobile Web Client
D.Wireless Web Client
E.Dedicated Web Client
Answer: AD

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NO.5 You are considering using the ATTRIB_02 column on the S_SRV_REQ_X table and you want to
determine which, if any, business component field is already using this column. What would you do?
A.Use Search Repository, select Column as the Type and enter ATTRIB_02 as the value.
B.Use the Flat tab, select the Field type, and search the Column property for ATTRIB_02 and the Join
property for S_SRV_REQ_X
C. Use the Flat tab, select the Column type, and search the Name property for ATTRIB_02.
D. Use the Types tab, search for Service* business components, inspect each of their Single Value Fields.
E. Use the Types tab, select the Service Request business component, then Single Value Field, and
search the Column property for ATTRIB_02.
Answer: B

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NO.6 How can you verify the High Interactivity client environment after installation?
A.Run Health Check.
B.Run Environment Verification Test.
C.Examine the Siebel Web Client registry file.
D.Rerun the Installation Program and select Verify.
Answer: A

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NO.7 Which statement about views and responsibilities is true?
A.Multiple responsibilities may share views.
B.Manager and User responsibilities will have completely different views.
C.Users have access to the views associated with only one responsibility at a time.
D.Each responsibility assigned to a user must have entirely separate views assigned.
Answer: A

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NO.8 What does the Component Reconfiguration feature allow you to do?
A.Change component parameters without interrupting users.
B.Activate reconfigured components at the next server restart.
C.Move server components from one server to another without interrupting users.
D.Stop all current instances of a component and restart them with new parameters.
Answer: A

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NO.9 You are creating a new child business component to support displaying promotional items that have
been sent to Contacts. What type of table do you base the new business component on?
A.The base table of the parent business component.
B.Standard interface tables supplied by Siebel.
C.Standard 1:M extension tables supplied by Siebel.
D.New tables that you create with the Business Component wizard.
Answer: C

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NO.10 Which Server Administration feature can be configured to notify the Administrator when a server
component reaches an undesired state?
A.Audit trail
B.System Alerts
C.Siebel State Model
D.Component Event Logging
Answer: B

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NO.11 What is true about directory server authentication?
A.It is the default authentication method for Siebel applications.
B.It typically uses a single reserved database login for all users.
C.User authentication is performed by a third-party service at the Web server level.
D.It does not require additional infrastructure components, such as security adapters.
Answer: B

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NO.12 Which object definitions in the Business Layer do List columns and controls in the UI Layer reference?
A.Fields
B.Columns
C.Business objects
D.Business components
Answer: A

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NO.13 You have been asked to create a multi-value group for contacts phone numbers. What should your first
step in this configuration be?
A.Create a new business component to store these phone numbers.
B.Determine which column on the base table you can use to store these phone numbers.
C.Determine which column on the one-to-many extension table you can use to store these phone
numbers.
D.Run the MVG Wizard in Siebel Tools, specify the business component, and have it automatically select
the appropriate column.
E.Examine the existing application to determine whether there is already a multi-value group you could
leverage to store phone numbers.
Answer: E

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NO.14 Which Siebel business entity represents businesses external to your company that could be a current
or potential client, business partner, or competitor?
A.Contact
B.Account
C.Position
D.Opportunity
Answer: B

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NO.15 Which Siebel business entity represents people with whom you do business?
A.User
B.Contact
C.Position
D.Opportunity
Answer: B

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NO.16 You need to search Service Requests in your workflow. You add a Siebel Operation step.
Which two are true? (Choose two.)
A.You set the Operation property to Query.
B.You set the Operation property to Search.
C.You set the Operation Property to Update.
D.You set the Business Object property to Service Request.
E.You set the Business Component property to Service Request.
Answer: AE

Oracle   1Z1-202   1Z1-202

NO.17 Which describes database authentication?
A.It is the default authentication method for Siebel applications.
B.It typically uses a single reserved database login for all users.
C.It requires additional infrastructure components, such as security adapters.
D.User authentication is performed by a third-party service at the Web server level.
Answer: A

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NO.18 Which three products do you have the option of installing with the Siebel Enterprise Server Installer?
(Choose three.)
A.Siebel Tools
B.Siebel Server
C.Siebel Web Client
D.Sample Database
E.Gateway Name Server
F.Siebel Web Server Extensions
G.Database Configuration Utilities
Answer: BEG

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NO.19 Which authentication method allows for self-registration by Web users?
A.Web Single Sign On
B.database authentication
C.Windows authentication
D.Directory Server authentication
Answer: D

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NO.20 Which Assignment Mode filters all qualified organizations and persons and then assigns only those that
have corresponding persons and organizations that meet the criteria?
A.Independent
B.Organization-oriented
C.Person-oriented
D.Org & person-oriented
Answer: D

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Exam Code: 1Z0-032
Exam Name: Oracle (Oracle9l database:fundamentals ii)

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NO.1 In which scenario would you open the database with the RESETLOGS option after recovering the
database in NOARCHIVELOG mode?
A.when the control file is corrupted
B.when the SYSTEM data file is corrupted
C.when a nonsystem data file is corrupted
D.when the redo log files were not backed up
E.when there are no backups available to be restored
Answer: D

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NO.2 Which backups can be performed without shutting down the instance? (Choose all that apply.)
A.an image copy backup
B.a backup of the database running in NOARCHIVELOG mode
C.a backup of dictionary-managed tablespace if the database is in ARCHIVELOG mode.
D.a backup of the database when all read/write datafiles and control files are checkpointed with respect to
the same system change number (SCN).
Answer: AC

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NO.3 Because your business requirements do not permit you to shut down the database to perform backups,
you decide to perform online backups. You use the ALTER TABLESPACE .. BEGIN BACKUP command
to perform the backups. The command returns the following error:
ERROR at line 1:
ORA-01123: cannot start online backup; media recovery not enabled
What could be the reason for this error?
A.The database is in the MOUNT state.
B.The database is in NOARCHIVELOG mode.
C.The command was executed on the SYSTEM tablespace.
D.The command was executed on a temporary tablespace.
E.The command was executed on a read-only tablespace.
Answer: B

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NO.4 When CONFIGURE CONTROLFILE AUTOBACKUP is set to ON, RMAN automatically performs a
control file autobackup in which three situations? (Choose three.)
A.at the end of every RUN block
B.after every SET CONTROLFILE AUTOBACKUP FORMAT command
C.after every BACKUP or COPY command issued at the RMAN prompt
D.at the end of every RUN block if the last command in the block was either BACKUP or COPY
E.whenever a BACKUP or COPY command within a RUN block is followed by a command that is neither
BACKUP nor COPY
F.after every BACKUP or COPY command within a RUN block that is followed by the CONFIGURE
CONTROLFILE AUTOBACKUP FORMAT command
Answer: CDE

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NO.5 You are using Recovery Manager (RMAN) to maintain daily backups of your database, which is running
in ARCHIVELOG mode. In which two scenarios would you perform an incomplete database recovery
using UNTIL TIME from the backups that you maintain using RMAN? (Choose two.)
A.when a table is dropped
B.when a table is truncated
C.when the SYSTEM tablespace is corrupted
D.when the data block in a nonsystem tablespace is corrupted
E.when a data file that belongs to a nonsystem tablespace is corrupted
Answer: AB

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NO.6 You are using RMAN to perform a backup of your database. Which statement is true regarding image
copy backups?
A.Image copy backups cannot be parallelized.
B.An image copy can be written only to tape.
C.An image copy backup is performed by using the RMAN BACKUP command.
D.During an image copy backup, blocks are checked to make sure that they are not corrupted.
Answer: D

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NO.7 Which user-managed backup performed on your database can be labeled as consistent?
A.a backup performed when the database is open
B.a backup performed on a tablespace after putting the tablespace into backup mode
C.a backup performed when the database is closed by using the SHUTDOWN ABORT command
D.a backup performed when all data files and control files are checkpointed with respect to the same
system change number (SCN)
Answer: D

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NO.8 You plan to perform a backup of the control file in your database. Which two statements regarding the
control file backup are true? (Choose two.)
A.You can back up the control file to a binary file.
B.You must bring the database to the NOMOUNT state to perform the control file backup.
C.You must store all types of control file backups in the location defined by USER_DUMP_DEST.
D.You can back up the control file by generating a script that can be used to re-create the control file.
Answer: AD

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NO.9 You want to perform a backup of the control file by using the following command:
ALTER DATABASE BACKUP CONTROLFILE TO TRACE;
In which situation would the command fail?
A.The database is in the MOUNT state.
B.The database is in the NOMOUNT state.
C.The database has multiplexed control files
D.The database is opened and is in read-only mode.
Answer: B

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NO.10 You work on a database that is used for application development and operates in ARCHIVELOG mode.
As a DBA, you know that database downtime can be tolerated and have designed a backup strategy
containing a weekly closed database backup. The local naming method is used by clients to connect to
the database.
Which files should you include in this weekly user-managed backup? (Choose all that apply.)
A.control file
B.sqlnet.ora file
C.archived log files
D.tnsnames.ora file
E.listener configuration file
Answer: AC

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NO.11 You work on a database that is used for application development and operates in NOARCHIVELOG
mode. The database has 10 tablespaces out of which two are read only. As a DBA, you know that
database downtime can be tolerated and have designed a backup strategy containing a weekly closed
database backup.
Which files can you exclude from the weekly user-managed backup? (Choose all that apply.)
A.control files
B.sqlnet.ora file
C.tnsnames.ora file
D.data files associated with read-only tablespaces
E.data files associated with read/write tablespaces
Answer: BCD

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NO.12 Your database contains 10 tablespaces and is functioning in NOARCHIVELOG mode. You want to
use Recovery Manager (RMAN) to perform backups. Which two backups would you be able to perform
when the database is being accessed by users? (Choose two.)
A.backup of offline tablespaces
B.backup of read-only tablespaces
C.backup of system-critical tablespaces
D.backup of online, locally managed tablespaces
E.backup of read/write, dictionary-managed tablespaces
Answer: AB

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NO.13 You started your database at 7:30 a.m. and you backed up three copies of all existing archived log
files to tape at 9:00 a.m. At 10:30 a.m., you executed the following command:
RMAN> CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE sbt TO 4;
At 1:00 p.m., you executed the following commands:
RMAN> CONFIGURE BACKUP OPTIMIZATION ON;
RMAN> BACKUP DEVICE TYPE sbt COPIES 2 ARCHIVELOG ALL;
Other RMAN configuration parameters are set to their default values. Which statement is correct?
A.RMAN would back up the logs which do not have four copies until 1:00 p.m.
B.RMAN would back up all logs that were created between 7:30 a.m. and 1:00 p.m.
C.RMAN would back up all logs that were created between 10:30 a.m. and 1:00 p.m.
D.RMAN would back up all logs that were not backed up, with two copies for logs created before 1:00
p.m.
Answer: D

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NO.14 Which option must you specify in the sqlnet.ora file on the client machines to enable clients to use the
host naming method?
A.names.addresses
B.names.default_domain
C.names.directory_path
D.names.preferred_servers
E.sqlnet.authentication_services
Answer: C

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NO.15 You have set the control file autobackup to ON by using the following command in the Recovery
Manager (RMAN):
CONFIGURE CONTROLFILE AUTOBACKUP ON;
Which two events would cause the control file to be backed up automatically? (Choose two.)
A.when a tablespace is added
B.when the database instance is restarted
C.when a successful backup is recorded in the RMAN repository
D.when the RMAN connection is disconnected from the target database
Answer: AC

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NO.16 While starting up the database on a Monday morning, you get the following error after the database is
mounted:
ORA-01157: cannot identify/lock data file 9 - see DBWR trace file
ORA-01110: data file 9: '/u01/oracle/app/oradata/orcl/users01.dbf'
While investigating, you realize that a backup of the data file (users01.dbf) exists. Which data dictionary
view would you use to locate the archived redo log files that are required for recovery?
A.V$ARCHIVED_LOG
B.V$RECOVERY_LOG
C.V$RECOVER_FILE
D.V$RECOVERY_STATUS
Answer: B

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NO.17 Last Friday, you performed a closed database backup of your database that is running in
NOARCHIVELOG mode. On Monday morning, you discover that the media that contains one of the data
files is corrupted. Now, you need to recover your database.
Which two tasks would you perform before you start recovering the database? (Choose two.)
A.restore all data files
B.restore password files
C.restore the control files
D.restore the redo log files
E.restore the parameter file
F.restore the server parameter file
G.restore the corrupted data file only
Answer: AC

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NO.18 Which two statements regarding backup sets are true? (Choose two.)
A.A backup set may contain both data files and control files.
B.Each file in a backup set must have the same Oracle block size.
C.A backup set may contain both data files and archived redo log files.
D.A backup set may contain both a control file and archived redo log files.
Answer: AB

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NO.19 Which three features are provided by Oracle Net Services? (Choose three.)
A.data encryption
B.user authentication
C.transparent data conversion
D.configuration and administration mechanisms
E.support for multiple network transport protocols
Answer: CDE

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NO.20 SQL*Loader is a utility that can perform which two tasks? (Choose two.)
A.load data from a disk, tape, or named pipes
B.load data into an Oracle database using DML statements
C.extract, reorganize, and insert data within an Oracle database
D.load data from external files into tables in an Oracle database
E.load data into an Oracle database using operating system commands
F.load data directly from a non-Oracle database to an Oracle database
Answer: AD

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