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Oracle 1Z0-053 Exam

Oracle Database 11g: Administration II








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Question: 1


Identify two situations in which you can use Data Recovery Advisor for recovery. (Choose
two.)

A. The user has dropped an important table that needs to be recovered.
B. The database files are corrupted when the database is open.
C. You are not able to start up the database instance because the required database files
are missing.
D. The archived log files are missing for which backup is not available.


Answer: B,C



Question: 2


Examine the following values of the initialization parameters in the database having the SID
ORCL:
BACKGROUND_DUMP_DEST=/u01/app/oracle/product/11.1.0/db_1/bdump
USER_DUMP_DEST=/u01/app/oracle/product/11.1.0/db_1/udump
CORE_DUMP_DEST=/u01/app/oracle/product/11.1.0/db_1/cdump
DIAGNOSTIC_DEST=
The environment variables have the following value:
ORACLE_BASE=/u01/app/oracle
ORACLE_HOME=/u01/app/oracle/product/11.1.0/db_1
What is the location of the Automatic Diagnostic Repository (ADR) home?

A. /u01/app/oracle/product/11.1.0/db_1
B. /u01/app/oracle
C. $ORACLE_HOME/bdump
D. $ORACLE_HOME/log


Answer: B



Question: 3


Observe the following PL/SQL block:
BEGIN dbms_spm.configure('SPACE_BUDGET_PERCENT', 30);
END;
Which statement is correct regarding the above PL/SQL block?


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A. It automatically purges the SQL management objects when SMB occupies more than
30% of the SYSAUX tablespace.
B. It reserves 30% of the space in the SYSAUX tablespace for SQL Management Base
(SMB).
C. It reserves 30% of the space in the SYSTEM tablespace for SMB.
D. It generates a weekly warning in the alert log file when SMB occupies more than 30% of
the SYSAUX tablespace.


Answer: D



Question: 4


You are managing an Oracle Database 11g ASM instance having three disks in a disk group
with ASM compatibility attribute set to 11.1.0 and redundancy set to high. One of the disks in
the disk group becomes unavailable because of power failure. Which statements will be true
in this scenario? (Choose all that apply.)

A. The disk is immediately dropped from the disk group.
B. The ASM tracks the extents that are modified during the outa
C. The ASM migrates the extents from the unavailable disk to the remaining disks.
D. The disk automatically goes offline.


Answer: B,D



Question: 5


Which statements are true regarding table compression? (Choose all that apply.)

A. It saves disk space and reduces memory usage.
B. It saves disk space but has no effect on memory usage.
C. It incurs extra CPU overhead during DML as well as direct loading operations.
D. It incurs extra CPU overhead during DML but not direct loading operations.
E. It requires uncompress operation during I/O.


Answer: A,C




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Question: 6


You are working as a DBA on the decision support system. There is a business requirement
to track and store all transactions for at least three years for a few tables in the database.
Automatic undo management is enabled in the database. Which configuration should you
use to accomplish this task?

A. Enable Flashback Data Archive for the tables.
B. Specify undo retention guarantee for the database.
C. Enable supplemental logging for the database.
D. Query V$UNDOSTAT to determine the amount of undo that will be generated and create
an undo tablespace for that size.
E. Create Flashback Data Archive on the tablespace on which the tables are stored.


Answer: A



Question: 7


Which components are needed for successful and most efficient recovery.

A. The backup RB3 and the current online redo log files
B. the backup RB2 and the archived redo log files after the log sequence number 15622
C. Backup R81 and the archived redo log hies after the log sequence number 12871
D. The backup RB3 and the archived redo log files after the log sequence number 16721


Answer: A



Question: 8


You are managing an Oracle Database 11g instance with ASM storage. You lost an ASM
disk group DATA . You have RMAN backup of data as well as ASM metadata backup. You
want to re-create the missing disk group by using the ASMCMD md_restore command.
Which of these methods would you use to achieve this? (Choose all that apply.)

A. Restore the disk group with the exact configuration as the backed-up disk group, using
the same disk group name, same set of disks, failure group configurations, and data on the
disk group.
B. Restore the disk group with the exact configuration as the backed-up disk group, using
the same disk group name, same set of disks, and failure group configurations.

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C. Restore the disk group with changed disk group specification, failure group specification,
disk group name, and other disk attributes.
D. Restore metadata in an existing disk group by passing the existing disk group name as an
input parameter.


Answer: B,C,D



Question: 9


Which statement describes the effect of table redefinition on the triggers attached to the
table?

A. All triggers on the table are invalidated and are automatically revalidated with the next
DML execution on the table.
B. All triggers on the table are invalidated and must be manually recompiled before the next
DML execution on the table.
C. All triggers on the table remain valid.
D. Only triggers that are affected by the changes to the structure of the table are invalidated
and automatically revalidated with the next DML execution on the table.


Answer: A



Question: 10


You plan to collect the Automatic Workload Repository (AWR) data every Monday morning
for a month. You want Oracle Database to automatically create a baseline every Monday
and remove the old baseline. What is the correct action to achieve this?

A. Create and populate a SQL Tuning Set from the AWR on every Monday.
B. Change the RETENTION setting for the AWR snapshots to 7 days on Monday.
C. Create a repeating baseline template.
D. Insert a finding directive for future ADDM tasks.


Answer: C




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Question: 11

Which three statements are true regarding persistent lightweight jobs? (Choose three.)

A. Persistent lightweight jobs modify several tables in the data dictionary to generate a lot of
redo.
B. The user cannot set privileges on persistent lightweight jobs.
C. Persistent lightweight jobs are useful when users need to create a large number of jobs in
a short time.
D. Persistent lightweight jobs are useful when users need to create a small number of jobs
that run infrequently.
E. The use of a template is mandatory to create persistent lightweight jobs.


Answer: B,C,E


Question: 12

Your database initialization parameter file has the following entry:
SEC_MAX_FAILED_LOGIN_ATTEMPTS=3
Which statement is true regarding this setting?

A. It drops the connection after the specified number of login attempts fail for any user.
B. It is enforced only if the password profile is enabled for the user.
C. It locks the user account after the specified number of attempts.
D. It drops the connection after the specified number of login attempts fail only for users who
have the SYSDBA privilege.


Answer: A


Question: 13

Which statement is true regarding virtual private catalogs?

A. A virtual private catalog owner can create a local stored script, and have read/write
access to a global stored script.
B. The virtual private catalog owner cannot create and modify the stored scripts.
C. The set of views and synonyms that make up the virtual private catalog is stored in the
schema of the RMAN recovery catalog owner.
D. To perform most of the RMAN operations, the virtual catalog owner must have the
SYSDBA or SYSOPER privilege on the target database.


Answer: D



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Question: 14


Which tasks can be accomplished using the Enterprise Manager Support Workbench in
Oracle Database 11g? (Choose all that apply.)

A. Generate reports on data failure such as data file failures.
B. You can track the Service Request (SR) and implement repairs.
C. You can package and upload diagnostic data to Oracle Support.
D. You can manually run health checks to gather diagnostic data for a problem.


Answer: B,C,D



Question: 15


What are the advantages of variable extent size support for large ASM files? (Choose two.)

A. It improves resync operations when the disk comes online after being taken offline for
maintenance purposes.
B. It improves performance in the extended cluster configuration by reading from a local
copy of an extent.
C. Fewer extent pointers are needed to describe the file and less memory is required to
manage the extent maps in the shared pool.
D. This feature enables faster file opens because of the reduction in the amount of memory
that is required to store file extents.


Answer: C,D



Question: 16


Which two are the uses of the ASM metadata backup and restore (AMBR) feature? (Choose
two.)

A. It can be used to back up all data on ASM disks.
B. It can be used to recover the damaged ASM disk group along with the data.
C. It can be used to gather information about a preexisting ASM disk group with disk paths,
disk name, failure groups, attributes, templates, and alias directory structure.
D. It can be used to re-create the ASM disk group with its attributes.


Answer: C,D

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Question: 17


Which two changes and their effect on the system can be tested by using the Database
Replay feature? (Choose two.)

A. multiplexing of the control file
B. adding the redo log member to the database
C. database and operating system upgrades
D. changing the database storage to ASM-managed storage


Answer: C,D



Question: 18


Which is the source used by Automatic SQL Tuning that runs as part of the AUTOTASK
framework?

A. SQL statements that are part of the AWR baseline only
B. SQL statements based on the AWR top SQL identification
C. SQL statements that are part of the available SQL Tuning Set (STS) only
D. SQL statements that are available in the cursor cache and executed by a user other than
SYS


Answer: B



Question: 19


While performing the backup of the flash recovery area, you notice that one of the archived
redo log files is missing. You have multiple destinations for archived redo log files. What
implications does it have on the backup of the flash recovery area?

A. The backup fails because one of the archived redo log files is missing.
B. The backup succeeds but it would be without the missing archived log.
C. During backup, you are prompted for the alternative destination for the missing archived
redo
log file. D. The backup succeeds because it fails over to one of the alternative archived redo
log destinations.


Answer: D

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Question: 20


You are managing an Oracle Database 11g instance and an Oracle Database 10g instance
on the same machine. Both instances use the ASM instance as storage. Which statement
regarding the ASM disk group compatibility attributes are true in this scenario? (Choose all
that apply.)

A. The database-compatibility version settings for each instance must be greater than or
equal to the RDBMS compatibility of all ASM disk groups used by that database instances.
B. RDBMS compatibility and the database version determines whether a database instance
can mount the ASM disk group.
C. The RDBMS compatibility settings for a disk group control the format of data structures
for ASM metadata on the disk.
D. ASM compatibility controls which features for the ASM will be enabled.


Answer: A,B,D



Question: 21


Which three statements are true regarding the functioning of the Autotask Background
Process (ABP)? (Choose three.)

A. It creates jobs without considering the priorities associated with them.
B. It translates tasks into jobs for execution by the scheduler.
C. It determines the list of jobs that must be created for each maintenance window.
D. It is spawned by the MMON background process at the start of the maintenance window.
E. It maintains a repository in the SYSTEM tablespace to store the history of the execution of
all tasks.


Answer: B,C,D



Question: 22


Which statements are true regarding the concept of problems and incidents in the fault
diagnosability infrastructure for Oracle Database 11g? (Choose all that apply.)

A. Only the incident metadata and dumps are stored in the Automatic Diagnostic Repository
(ADR).
B. The problem key is the same as the incident number.

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C. The database sends an incident alert to the Oracle Enterprise Manager Database Home
page.
D. Every problem has a problem key, which is a text string that describes the problem.
E. The database makes an entry into the alert log file when problems and incidents occur.


Answer: C,D,E



Question: 23


What two statements are true regarding the recommendations received from the SQL
Access Advisor? (Choose two.)

A. It cannot generate recommendations that support multiple workload queries.
B. It can recommend partitioning on tables provided that the workloads have some
predicates and joins on the columns of the NUMBER or DATE type.
C. It can recommend partitioning only on tables that have at least 10,000 rows.
D. It can recommend only B-tree indexes and not bitmap or function-based indexes.


Answer: B,C



Question: 24


You are managing Oracle Database 11g with an ASM storage with high redundancy. The
following command was issued to drop the disks from the dga disk group after five hours:
ALTER DISKGROUP dga OFFLINE DISKS IN FAILGROUP f2 DROP AFTER 5H; Which
statement is true in this scenario?

A. It starts the ASM fast mirror resync.
B. All the disks in the dga disk group would be OFFLINE and the DISK_REPAIR_TIME disk
attribute would be set to 5 hours.
C. It drops all disk paths from the dga disk group.
D. All the disks in the dga disk group in failure group f2 would be OFFLINE and the
DISK_REPAIR_TIME disk attribute would be set to 5 hours.


Answer: D




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