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Oracle Updated 1z0-497 Exam Questions and Answers by safaa

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Oracle 1z0-497 Exam Overview :

Exam Name: Oracle Database 12c Essentials
Exam Code: 1z0-497 Dumps
Vendor: Oracle Certification: Oracle Database 12c Certified Implementation Specialist
Questions: 150 Q&A's Shared By: safaa
Question 16

Which two statements are true about the B-tree Index?

Options:

A.

The leaf blocks in the index are doubly linked.

B.

The leaf node stores a bitmap for each key value.

C.

Rows with a NULL value in key columns also have entries in the Index.

D.

The deletion of a row from the table causes a logical deletion in the index leaf block and the space becomes available for a new leaf entry.

Discussion
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Question 17

Which two statements about switchover and failover are true?

Options:

A.

A snapshot standby can be the target of a switchover or fast-start failover operation.

B.

Neither a switchover nor a failover is possible to a far sync instance.

C.

For fast-start failover, you must preselect the target standby database that will be used.

D.

You can activate a standby database to test whether it is being updated correctly.

Discussion
Question 18

Which database feature can be used for organizing data when there is a very large amount of data?

Options:

A.

Index

B.

Partitioning

C.

Triggers

D.

Row-level security

E.

Database vault

Discussion
Question 19

Your customer is looking for zero-data-loss failover with maximum data protection and high availability for their primary database. Which two solutions would you recommend to the customer if the distance between the primary and the standby location is more than 300 miles?

Options:

A.

Asynchronous redo transport with Data Guard

B.

Synchronous redo transport with Data Guard

C.

Active Data Guard Far Sync

D.

Data Guard SQL Apply

Discussion
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