1z0-068 Oracle Database 12c: RAC and Grid Infrastructure Administration Practice Questions
Prepare for 1z0-068 with more than an answer.
- 1
Which two statements are true about the UNDROP clause of the ALTER DISKGROUP statement? (Choose two.)
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Correct answer: B, E
B, E -- Explanation:
The UNDROP DISKS clause of the ALTER DISKGROUP statement cannot be used to restore disks that are being dropped as the result of a DROP DISKGROUP statement, or for disks that are being dropped using the FORCE clause.
Reference: https://docs.oracle.eom/cd/B28359 01/server.111/b31107/asmdiskgrps.htmB, E -- Explanation:
The UNDROP DISKS clause of the ALTER DISKGROUP statement cannot be used to restore disks that are being dropped as the result of a DROP DISKGROUP statement, or for disks that are being dropped using the FORCE clause.
Reference: https://docs.oracle.eom/cd/B28359 01/server.111/b31107/asmdiskgrps.htm - 2
You just added an ASM disk to the DATA diskgroup.
Which two can be used to monitor the rebalancing?
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Correct answer: A, C
A, C
A, C
- 3
Which three statements are true regarding multitenant architecture for RAC databases?
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Correct answer: B, C, E
B, C, E -- Explanation:
B: For an Oracle RAC CDB, one active undo tablespace exists for each instance.
C: From a physical perspective, a CDB has basically the same structure as a non-CDB, except that each PDB has its own set of tablespaces (including its own SYSTEM and SYSAUX tablespaces) and data files.
References: docs.oracle.com/database/121/C">https://docs.oracle.com/database/121/CNCPT/cdblogic.htm#CNCPT89268B, C, E -- Explanation:
B: For an Oracle RAC CDB, one active undo tablespace exists for each instance.
C: From a physical perspective, a CDB has basically the same structure as a non-CDB, except that each PDB has its own set of tablespaces (including its own SYSTEM and SYSAUX tablespaces) and data files.
References: docs.oracle.com/database/121/C">https://docs.oracle.com/database/121/CNCPT/cdblogic.htm#CNCPT89268B, C, E -- Explanation:
B: For an Oracle RAC CDB, one active undo tablespace exists for each instance.
C: From a physical perspective, a CDB has basically the same structure as a non-CDB, except that each PDB has its own set of tablespaces (including its own SYSTEM and SYSAUX tablespaces) and data files.
References: docs.oracle.com/database/121/C">https://docs.oracle.com/database/121/CNCPT/cdblogic.htm#CNCPT89268 - 4
Which two statements are tuning recommendations for RAC database? (Choose two.)
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Correct answer: D, F
D, F
D, F
- 5
Examine this command and output:
Which statement must be true for the successful execution of the second command?

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Correct answer: C
C
- 6
Which three resources are managed using global concurrency control in an Oracle 12c RAC multi-instance database? (Choose three.)
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Correct answer: A, B, C
A, B, C
A, B, C
A, B, C
