Valid 1Z0-066 Dumps For Oracle Exam

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Question No. 1

Examine the Data Guard configuration after an accidental switchover to Sheep:

DGMGRL> show configuration;

Configuration Animals

Protection Mode: MaxAvailability

Databases:

sheep Primary database

dogs Logical standby database

cats Physical standby database (disabled)

ORA-16795: the standby database needs to be re-created

Fast-Start Failover: DISABLED

Configuration Status:

SUCCESS

Which three will be true after a switchover to Dogs? (Choose three.)

Answer: B, C, E
 

Question No. 2

Examine the Fast-start configuration:

DGMGRL> show fast_start failover;

Fast-Start Failover: ENABLED

Threshold : 30 seconds

Target: sheep

Observer : ol7.example.com

Lag Limit: 30 seconds (not in use)

Shutdown Primary: TRUE

Auto-reinstate: TRUE

Observer Reconnect: (none)

Observer Override: FALSE

Configurable Failover Conditions

Health Conditions:

Corrupted Controlfile YES

Corrupted Dictionary YES

Inaccessible Logfile NO

Stuck Archiver YES

Datafile Offline YES

Oracle Error Conditions:

(none)

Which three are true? (Choose three.)

Answer: A, C, E

A: Stuck Archiver: YES

Archiver is unable to archive a redo log because the device is full or unavailable.

C: Observer : 017.example.com

E: The FastStartFailoverLagLimit configuration property is only used by the broker when enabling fast-start failover for configurations operating in maximum performance mode.

References:

https://docs.oracle.com/cd/E11882_01/server.112/e40771/sofo.htm#DGBKR330

Question No. 3

You edit the DGConnectIdentifier database property using the edit database set property DGMGRL command.

Which two are effects of this change? (Choose two.)

Answer: A, B

B: The DGConnectIdentifier configurable database property specifies the connection identifier the broker uses when making connections to a database.

The value of this property is specified in the SERVICE attribute of the LOG_ARCHIVE_DEST_n parameter when the broker configures redo transport services on the primary database.

A: The connect identifier for a database must allow all other databases in the configuration to reach it.

References:

https://docs.oracle.com/cd/E11882_01/server.112/e40771/dbpropref.htm#DGBKR870

Question No. 4

Examine this command executed on a physical standby database to transition it to a logical standby database:

SQL> ALTER DATABASE RECOVER TO LOGICAL STANDBY prodlgsby;

Which statement is true regarding the execution of this command?

Answer: E
 

Question No. 5

You are monitoring your Data Guard broker configuration and issue this set of DGMGRL commands:

DGMGRL> SHOW CONFIGURATION

Configuration DRSolution

Protection Mode: MaxPerformance

Databases:

Close_by Primary database

FS_inst Far Sync

Far_away Physical standby database

Fast-Start Failover: DISABLED

Configuration Status:

SUCCESS

What is true concerning this configuration?

Answer: A

An Oracle Data Guard far sync instance is a remote Oracle Data Guard destination that accepts redo from the primary database and then ships that redo to other members of the Oracle Data Guard configuration. A far sync instance manages a control file, receives redo into standby redo logs (SRLs), and archives those SRLs to local archived redo logs, but that is where the similarity with standbys ends. A far sync instance does not have user data files, cannot be opened for access, cannot run redo apply, and can never function in the primary role or be converted to any type of standby database.

References:

https://docs.oracle.com/database/121/SBYDB/create_fs.htm

Question No. 6

Which three are true concerning Automatic Block Media Recovery in a Data Guard environment when running an application as an ordinary Oracle user? (Choose three.)

Answer: B, C, D

B: For automatic block media recovery to work, a physical standby database must be in real-time query mode, which requires an Oracle Active Data Guard license.

D: A physical standby database operating in real-time query mode can be used to repair corrupt data blocks in a primary database.

C: If corruption occurs on the primary database, blockmedia recovery is performed automatically using a good copy of the block from the standby database and vice versa.

References:

https://ora600tom.wordpress.com/2013/09/07/abmr-automatic-block-media-recovery/

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