Oracle surepassexam free 1z0-083 Questions Attempt by Essa q28 vce pdf

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Exam Name:	Oracle Database Administration II
Exam Code:	1z0-083 Dumps
Vendor:	Oracle	Certification:	Oracle Database 19c
Questions:	286 Q&A's	Shared By:	essa

Question 60

Which four are true about duplicating a database using Recovery Manager (RMAN)? (Choose four.)

Options:

Duplication can be done by having the auxiliary database instance pull backup sets from the target database instance.

A connection to an auxiliary instance is always required.

A subset of the target database can be duplicated.

A new DBID is always created for the duplicated database.

A connection to the recovery catalog instance is always required.

A backup of the target database is always required.

Duplication can be done by having the target database instance push copies to the auxiliary database instance.

Discussion

Question 61

Choose three. Which three are true about corrupted data blocks and their recovery in an Oracle Database?

Options:

If a row lock is held by a nonexistent transaction, the block containing the row is media corrupt.

DB_BLOCK_CHECKING=TRUE causes a check sum to be added to each data block to help detect physical or media corruption.

A media corrupt block is one where the block is not formatted correctly.

The ANALYZE TABLE VALIDATE STRUCTURE CASCADE command verifies that each table row has an index entry pointing to it.

If a row lock is held by a nonexistent transaction, the block containing the row is logically corrupt.

DB_LOST_WRITE_PROTECT=TYPICAL causes extra logging overhead on the standby database.

Discussion

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Question 62

Which three statements are true about Automatic Workload Repository (AWR)?

Options:

All AWR tables belong to the SYSTEM schema.

The AWR data is stored in memory and in t he database.

The snapshots collected by AWR are used by the self-tuning components in the database

AWR computes time model statistics based on time usage for activities, which are displayed in the v$SYS time model and V$SESS_TIME_MODEL views.

AWR contains system wide tracing and logging information.