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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:

• Duplicate Databases
• Diagnosing Database Issues
• Configure and using an RMAN recovery catalog
• Employ the best Oracle Database recovery technology for your failure situation
• Configuring and using RMAN - Oracle Database: Backup and Recovery Workshop
• Configure RMAN and the Database for Recoverability
• Describe and use Recovery technology for Crash, Complete, and Point-in-time recovry
• Perform flashback operations
• Diagnosing Failures - Oracle Database: Backup and Recovery Workshop
• Configure your Database to support Flashback

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Oracle Database Administration II Sample Questions (Q77-Q82):

NEW QUESTION # 77
While backing up to an SBT channel, you determine that the read phase of your compressed Recovery Manager (RMAN) incremental level 0 backup is a bottleneck.
FORCE LOGGING is enabled for the database.
Which two could improve read performance? (Choose two.)

• A. Enable asynchronous disk I/O.
• B. Increase the size of the database buffer cache.
• C. Increase the size of tape I/O buffers.
• D. Increase the level of RMAN multiplexing.
• E. Disable FORCE LOGGING for the database.

Answer: B,D

NEW QUESTION # 78
Examine this output:

Which two are true? (Choose two.)

• A. PDB3 is guaranteed to receive at least 20% of the available system resources if there is enough demand.
• B. PDB1 is always limited to 40% of the available system resources regardless of demand.
• C. PDB3 can use all available parallel execution processes at times.
• D. PDB2 is guaranteed at least 25% of the available parallel execution processes if there is enough demand.
• E. Any PDB not specified in the plan will be unable to execute statements in parallel.
• F. Any PDB not specified in the plan will be able to use a maximum of 16.5% of the available system resources.

Answer: A,E

NEW QUESTION # 79
In a recent Automatic Workload Repository (AWR) report for your database, you notice a high number of buffer busy waits. The database consists of locally managed tablespaces with free list managed segments. On further investigation, you f ind that buffer busy waits is caused by contention on data blocks. Which option would you consider first to decrease the wait event immediately?

• A. Decreasing PCTFREE
• B. Increasing db_buffer_cache based on t he V$DB_CACHE_ADVICE recommendation
• C. Using Automatic Segment Space Management (ASSM)
• D. Decreasing PCTUSED
• E. Increasing the number of DBWN process

Answer: C

NEW QUESTION # 80
You are managing this configuration:
* CDB1 is a container database.
* PDB1 and PDB2 are two pluggable databases in CDB1.
* USER1.EMP is a table in PDB1 and USER2.DEPT is a table in PDB2.
CDB1 user SYS executes these commands after connecting successfully to PDB2:

Which two are true? (Choose two.)

• A. The insert on USER2.DEPT is uncommitted.
• B. The inserts on USER1.EMP were committed when the session inserted a row into USER2.DEPT.
• C. The insert on USER2.DEPT is a recursive autonomous transaction by the child session and is committed.
• D. The inserts on USER1.EMP remain uncommitted when the session connected to PDB2.
• E. The inserts on USER1.EMP were rolled back when the session connected to PDB2.
• F. The insert on USER2.DEPT fails because of the active transaction in the parent container.
• G. The inserts on USER1.EMP were committed when the session connected to PDB2.

Answer: C,E

NEW QUESTION # 81
Oracle Data Redaction is active on the SCOTT.EMP table. You queried the table twice. SQL> SELECT ENAME, SAL, COMM, MGR, HIREDATE FROM EMP WHERE DEPTNO=30; SQL> SELECT ENAME, SAL, COMM, MGR, HIREDATE FROM EMP WHERE DEPTNO=30; Which is guaranteed to be true concerning the redaction policy?

• A. PARTIAL redaction is active on the MGR column.
• B. RANDOM redaction is active on the MGR column
• C. FULL redaction is active on the SAL column
• D. PARTIAL redaction is active of the HIREDATE column.
• E. RANDOM redaction is active on the HIREDATE column

Answer: E

NEW QUESTION # 82
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