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Oracle Database Administration II Sample Questions (Q201-Q206):

NEW QUESTION # 201
Which three are true about the SQL Tuning Advisor? (Choose three.)

A. It considers all SQL statements being analyzed by the advisor task as a group.
B. It only recommends syntactic changes to SQL statements.
C. It can recommend semantic changes to SQL statements.
D. It checks each query being analyzed for stale statistics.
E. It builds SQL profiles for each poorly performing SQL statement to prevent regressions.
F. It checks each query being analyzed for missing statistics.

Answer: C,D,F

Explanation:
https://docs.oracle.com/en/database/oracle/oracle-database/18/tgsql/sql-tuning- advisor.html#GUID-73AB38C1-A7F6-401E-9010-B4476E173673

NEW QUESTION # 202
Which three are true about Oracle pluggable databases (PDBs)?

A. An unplugged PDB can be plugged into multiple CDBs simultaneously by sharing data files.
B. A PDB in a remote CDB can be accessed transparently there by aggregating results from local and remote PDBs.
C. A PDB created from PDB$SEED must be set to READ WRITE after loading data.
D. A PDB unplugged from a container database (CDB) can be plugged into a different CDB without altering any of its schemas.
E. A PDB created from PDB$SEED must be set to READ ONLY after loading data.
F. A non-CDB can be converted into a PDB.
G. A PDB can be plugged into a CDB only if both are of the same Oracle Database release.

Answer: B,D,F

NEW QUESTION # 203
Which two are true about instance recovery? (Choose two.)

A. It is performed automatically after the database is opened; however, blocks requiring recovery are not available until they are recovered.
B. It is performed automatically while the database remains in MOUNT state. Then the database is opened.
C. It is performed by the Recovery Writer (RVWR) background process.
D. It is not possible if an archived log is missing.
E. Setting FAST_START_MTTR_TARGET to a lower value reduces instance recovery time by causing dirty buffers to be written to disk more frequently, thereby reducing the number of I/Os needed during instance recovery.
F. Setting FAST_START_MTTR_TARGET to a higher value reduces instance recovery time by causing the log writer to write more frquently, thereby reducing the number of I/Os needed during instance recovery.

Answer: B,F

NEW QUESTION # 204
Which two are true about changing the LOCAL_UNDO_ENABLED property to false in a CDB? (Choose two.)

A. After the change, each existing PDB has to be reopened for the new undo mode to take effect.
B. Any new PDB and existing PDBs are automatically configured to use the default undo tablespace in CDB$ROOT.
C. After the change, any user with the required privilege can create an undo tablespace in the PDBs.
D. After the change, only a common user with the required privilege can create an undo tablespace in CDB&ROOT.
E. Undo tablespaces existing in PDBs must be dropped before the change.
F. After the change, only one undo tablespace can exist in CDB$ROOT.

Answer: B,F

Explanation:
You can set a CDB in local UNDO mode either at CDB creation or by altering the CDB property. When the database property LOCAL_UNDO_ENABLE is FALSE, which is the default, there is only one UNDO tablespace that is created in the CDB root, and that is shared by all containers. When LOCAL_UNDO_ENABLE is TRUE, every container in the CDB uses local undo and each PDB must have its own local UNDO tablespace. To maintain ease of management and provisioning, UNDO tablespace creation happens automatically and does not require any action from the user. When a PDB is opened and an UNDO tablespace is not available, its automatically created.
Reference:
https://docs.oracle.com/en/database/oracle/oracle-database/18/multi/creating-and-configuring-a- cdb.html#GUID-12ADA04D-F81D-4579-A68C-0958CC7D6C2F

NEW QUESTION # 205
Which three are true in Oracle 19c and later releases? (Choose three.)

A. If the password file location changes, then the new location is used automatically by the Oracle Server.
B. Schema Only accounts can be granted administrator privileges.
C. All the Oracle-supplied accounts are Schema Only accounts.
D. Privilege Analysis is included in Oracle Enterprise Edition and no longer requires Database Vault.
E. Unified Auditing can be configured to audit only events that are issued indirectly by an audited user.
F. Unified Auditing can be configured to audit only events that are issued directly by an audited user.

Answer: B,C,D

Explanation:
Explanation
Explanation/Reference: https://mandysandhu.com/2018/04/30/oracle-database-18c-schema-only-accounts/

NEW QUESTION # 206
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