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Oracle Database Administration II Sample Questions (Q138-Q143):

NEW QUESTION # 138
Which two are true about Optimizer Statistics? (Choose two.)

A. They provide real-time data about schema objects.
B. They are gathered by the SQL Tuning Advisor.
C. They are ignored by Optimizer if they are stale.
D. They can be gathered by the DBMS_STATS package.
E. By default, they are automatically gathered by a maintenance job.

Answer: D,E

Explanation:
https://docs.oracle.com/database/121/TGSQL/tgsql_stats.htm#TGSQL-GUID-E4EFD512-EAF9-
4AF3-943F-FDEC7E47B23C

NEW QUESTION # 139
Which three are true about managing memory components in an Oracle database instance? (Choose three.)

A. Automatically tuned and resized System Global Area components will always revert to their initial sizes after an instance restart.
B. Automatic Memory Management must be used together with locking the System Global Area into physical memory.
C. With Automatic Shared Memory Management, the database instance can increase the Large Pool size by reducing the Shared Pool size.
D. On Line Transaction Processing systems often use less Program Global Area than Decision Support Systems.
E. With Automatic Shared Memory Management, the database instance can increase the Program Global Area size by reducing the System Global Area size.
F. With Automatic Memory Management, the database instance can increase the System Global Area size by reducing the Program Global Area size.

Answer: C,D,E

Explanation:
Explanation/Reference: https://docs.oracle.com/database/121/TGDBA/tune_shared_pool.htm

NEW QUESTION # 140
Examine this configuration:
1. CDB1 is a container database running in ARCHIVELOG mode.
2. Multiple uncommitted transactions are running in CDB1.
3. Redo log groups 1 and 2 are INACTIVE.
4. Redo log group 3 is the CURRENT group.
All members of redo log group 3 are lost before it is archived.
Examine these possible steps:
1. SHUTDOWN ABORT
2. STARTUP NOMOUNT
3. STARTUP MOUNT
4. ALTER DATABASE MOUNT
5. RESTORE DATABSE
6. RECOVER DATABASE NOREDO
7. RECOVER DATABASE UNTIL AVAILABLE
8. RESTORE ARCHIVELOG ALL
9. ALTER DATABSE OPEN
10.ALTER DATABASE OPEB RESETLOGS
Choose the minimum required steps in the correct order to recover the database.

A. 1, 3, 5, 6, 9
B. 1, 3, 5, 8, 6, 10
C. 1, 3, 5, 6, 10
D. 1, 3, 5, 7, 10
E. 1, 2, 5, 7, 4, 10

Answer: C

NEW QUESTION # 141
Which two are true about automatic block repair?

A. Real-Time Query must be enabled on a physical standby database for automatic block repair to be done on its primary database.
B. Real-Time Query must be enabled on a primary database for automatic block repair to be done on any of its physical standby databases.
C. Automatic block repair can repair blocks with no standby database if db_block_checking = TRUE.
D. It is not possible for media corrupt blocks.
E. Real-Time Query must be enabled on a physical standby database for automatic block repair to be done on that physical standby database.

Answer: B,D

NEW QUESTION # 142
Which two are true about creating pluggable databases (PDBs) using snapshots in Oracle 19c and later releases?

A. A PDB snapshot is always a full copy of the source PDB
B. A snapshot copy PDB can be created from a stand-alone clone PDB
C. A PDB snapshot depends on a storage snapshot which can be stored on any file system
D. A PDB snapshot depends on a storage snapshot which can only be stored on specific file systems
E. A snapshot copy PDB depends on a storage snapshot which can be stored on any file system
F. A PDB snapshot is always a sparse copy of the source PDB
G. A snapshot copy PDB depends on a storage snapshot which can only be stored on specific file systems

Answer: D,F

NEW QUESTION # 143
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