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Understanding functional and technical aspects of Oracle Database Administration II Exam Number: 1Z0-083

The following will be discussed in the ORACLE 1Z0-083 exam dumps pdf:

Monitoring and Tuning Database Performance
Oracle Database 19c: New Features for Administrators
Oracle Database: Administration Workshop
Using General Overall Database Enhancements
Oracle Database 18c: New Features
Upgrading to Oracle Grid Infrastructure
Upgrade the Oracle Database
Oracle Restart

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Oracle Database Administration II Sample Questions (Q190-Q195):

NEW QUESTION # 190
Which two are true about instance recovery?

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

Answer: E,F

NEW QUESTION # 191
Which two are true about server-generated alerts? (Choose two.)

A. Stateful alerts must be created by a DBA after resolving the problem.
B. Stateful alerts are purged automatically from the alert history.
C. Stateless alerts are automatically cleared.
D. Stateless alerts can be purged manually from the alert history.
E. Stateless alerts can be cleared manually.

Answer: A,E

Explanation:
Explanation/Reference: https://jameshuangsj.wordpress.com/2019/12/01/clears-stateless-alerts-in-oem-by-using-emcli/

NEW QUESTION # 192
Which three are true about Automatic Workload Repository (AWR), Automatic Database Diagnostic Monitor (ADDM), and the Manageability Monitor (MMON) background process? (Choose three.)

A. AWR snapshots must be deleted when no longer required by ADDM.
B. By default, AWR snapshots are automatically purged after eight days.
C. ADDM can recommend extending the buffer cache.
D. ADDM can recommend shrinking the buffer cache.
E. By default, MMON creates an AWR snapshot every 30 minutes.
F. ADDM performs its analysis only when a DBA requests it.

Answer: A,B,D

Explanation:
Explanation/Reference: https://books.google.com.pk/books?id=DeQkU5E75DUC&pg=PA869&lpg=PA869&dq=By+default,
+AWR+snapshots+are+automatically+purged+after+eight
+days&source=bl&ots=DfoGmJfCMy&sig=ACfU3U0Pf2RgIs72LUV4HUzs5UIXI8sXEQ&hl=en&sa=X&ved=2ah UKEwjb8bKhu9noAhUwTxUIHRpYAuMQ6AEwA3oECAsQLA#v=onepage&q=By%20default%2C%20AWR%
20snapshots%20are%20automatically%20purged%20after%20eight%20days&f=false

NEW QUESTION # 193
Which two are true about OS groups and users for Oracle Grid Infrastructure and the Oracle Relational Database Management System (RDBMS)? (Choose two.)

A. The same OSDBA group must be used for Automatic Storage Management and the Oracle Database.
B. The Oracle Grid Infrastructure owner must have OSOPER, OSBACKUPDBA, and OSKMDBA as secondary groups.
C. By default, members of the OSASM group can access Automatic Storage Management and RDBMS instances.
D. The Oracle Grid Infrastructure installation must be owned by the grid user.
E. The primary group for the Oracle Grid Infrastructure and Oracle Database owners must be the Oracle Inventory group.
F. The Oracle Grid Infrastructure owner owns Oracle Restart and Oracle Automatic Storage Management binaries.

Answer: A,B

NEW QUESTION # 194
Examine this configuration:
* CDB1 is a container database.
* PDB1 and PDB2 are pluggable databases in CDB1.
* PDB1 and PDB2 are OPEN in READ WRITE mode.
You execute these commands successfully:

Which two are true? (Choose two.)

A. PDB1 is closed.
B. Uncommitted transactions in CDB1 and PDB1 have been rolled back.
C. CDB1 is in MOUNT state
D. Uncommitted transactions in PDB1 have been rolled back.
E. CDB1 is shut down.

Answer: A,C

NEW QUESTION # 195
......

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