100% Correct 1Z0-066 Free Practice Questions 2021

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NEW QUESTION 1
Which two are prerequisites for enabling Automatic Block Media Recovery in a Data Guard environment consisting of a primary database, one physical standby database and one logical standby database?

  • A. FLASHBACK DATABASE must be enabled on the physical standby database.
  • B. There must be connectivity between the primary and the physical standby database.
  • C. FLASHBACK DATABASE must be enabled on the primary database.
  • D. The physical standby database must have Real-Time Apply enabled.
  • E. The logical standby database must have Real-Time Query enabled

Answer: CD

NEW QUESTION 2
You must configure an Oracle Data Guard environment consisting of:
1. A primary database
2 Three Physical Standby Databases
You must meet these requirements:
✑ A designated physical standby database should become the primary database automatically whenever the primary database falls
✑ The chosen protection mode should provide the highest level of protection
possible without violating the other requirement
Which redo transport mode and protection mode would you configure to meet these requirements?

  • A. SYNC NOAFFRIM and Maximum Protection
  • B. SYNC NOAFFIRM and Maximum Availability
  • C. ASYNC and Maximum Performance
  • D. SYNC AFFIRM and Maximum Availability
  • E. SYNC AFFIRM and Maximum Protection

Answer: D

NEW QUESTION 3
A customer has these requirements for their potential Data Guard implementation:
1. Zero data loss must still be guaranteed through the loss of any one configuration component.
2 The primary database must be protected against a regional disaster
3. Performance overheads on the primary should be minimized as much as possible given these requirements.
4. Downtime on the primary database for any reason must be kept to a minimum. Components referred to in the broker commands are:
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Which Data Guard broker commands are needed to implement these requirements?

  • A. EDIT DATABASE prima SET PROPERY REDOROUTES=' (LOCAL: physt1, FASTSYNC)'; EDIT DATABASE prima SET PROPERY REDOROUTES=' (LOCAL: fs1 SYNC)'; EDIT FAR_SYNC fs1 SET PROPERTY REDORUOTES=' (pnma: physt2 SYNC)'; EDIT CONFIGURATION SET PROTECTION MODE AS MAXAVAILABILITY
  • B. EDIT DATABASE prima SET PROPERY REDOROUTES=' (LOCAL: fs1 ASYNC)'; EDIT FAR_SYNC fs1 SET PROPERTY REDORUOTES=' (prima physt FASTSYNC)'; EDIT CONFIGURATION SET PROTECTION MODE AS MAXPROTECTION
  • C. EDIT DATABASE prima SET PROPERY REDOROUTES^' (LOCAL: fs1 SYNC)'; EDIT FAR_SYNCfs1 SET PROPERTY REDORUOTES=' (prima physt ASYNC)'; EDIT CONFIGURATION SET PROTECTION MODE AS MAXAVAILABILITY;
  • D. EDIT DATABASE prima SET PROPERY REDOROUTES=' (LOCAL: physt1, FASTSYNC)'; EDIT DATABASE prima SET PROPERY REDOROUTES= (LOCAL: fs1. FASTSYNC)'; EDIT FAR_SYNC fs1 SET PROPERTY REDORUOTES=' (prima: physt2 ASYNC)'; EDIT CONFIGURATION SET PROTECTION MODE AS MAXAVAILABILITY;

Answer: A

NEW QUESTION 4
Which three factors can influence the rate of redo apply on a physical standby database?

  • A. the network latency between the primary and standby databases
  • B. the number of archiver processes on the standby database
  • C. the number and size of standby redo logs on the primary database
  • D. the rate of redo generation on the primary database
  • E. the number and size of standby redo logs on the standby database

Answer: ABE

NEW QUESTION 5
Which three statements are true about Global Sequences when connected to a physical standby database with Real-Time Query enabled?

  • A. if the CACHE option is set then the size of the cache must be at least 100
  • B. Their creation requires that a LOG_ARCHIVE_DEST_n parameter be defined in the standby that points back to their primary
  • C. Their usage will always have a performance impact on the primary database.
  • D. Their usage may have a performance impact on the physical standby database if the CACHE size is too small
  • E. They must have the NOORDER and CACHE options set.

Answer: BDE

NEW QUESTION 6
A query on the view DBA_LOGSTBY_UNSUPPORTED on your primary database returns no rows
As a result of this, you decide that an upgrade may use logical standby databases. Which two are true about upgrading Data Guard environments consisting of one logical
standby database running on a separate host from the primary?

  • A. The upgrade always requires downtown until the upgrade of the logical standby is completed
  • B. Using manual upgrade, catctl.pl can be executed in some cases on the primary and standby database simultaneously.
  • C. The upgrade always required downtime until the upgrade of the primary is completed
  • D. Using manual upgrade, catupgr.sql needs to run on the primary database only.
  • E. SQL Apply on the local standby database must be stopped while the primary database is upgraded.
  • F. Fast-Start Failover can be used to protect the primary database during the upgrade.

Answer: BE

NEW QUESTION 7
Examine the Data Guard configuration:
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Configuration Status: SUCCESS Which two are true?

  • A. The observer must run on host ol5.example com and is currently not running.
  • B. The observer will reinstate Sheep automatically after a failover, if required.
  • C. The observer will mark another standby database as the failover target if the original failover target becomes unavailable.
  • D. The observer will detect if the primary database is unable to accept new connections
  • E. The former primary database will not be reinstated automatically alter a failover.

Answer: BE

NEW QUESTION 8
Which two are true about the creation of a Data Guard Broker configuration?

  • A. in a broker configuration, the primary database name must match the DB_UNIQUE_NAME value in the database initialization parameter file.
  • B. A primary database profile may be added to the configuration prior to creating the primary database.
  • C. A standby database profile may be added to the configuration prior to creating that standby database.
  • D. A newly created broker configuration requires at least one standby database profile to be specified at the time the configuration is created.
  • E. A newly created broker configuration is in the disabled state

Answer: DE

NEW QUESTION 9
Examine the Data Guard configuration:
DGMGRL > show configuration; Configuration-Animals
Protection Mode MaxPerformance Databases
dogs-Primary database sheep-Snapshot standby database cats-Snapshot standby database
Fast-Start Failover: DISABLED Configuration Status: SUCCESS
You receive an error while attempting to raise the protection mode to Maximum Availability: DGMGDRL> edit configuration set protection mode as max availability;
Error ORA-16627 operation disallowed since no standby databases would remain to support protection mode Failed.
Identify two statements that you can execute, either one of which will enable successful raising of the protection mode to Maximum Availability.

  • A. DGMGRL> convert database sheep to physical standby;
  • B. DGMGRL> convert database cats to physical standby;
  • C. DGMGRL> edit database dogs set property LogXptMode= fastsync;
  • D. DGMGRL> edit database sheep set property LogXptMode= fastsync;
  • E. DGMGRL> edit database cats set property LogXptMode= sync;

Answer: BE

NEW QUESTION 10
Which three statements are true about Data Guard configurations?

  • A. All databases in one Data Guard environment must have the same database name.
  • B. VALID_FOR is a LOG_ARCHIVE_DEST_N attribute that enables DB role change operations without having to modify LOG_ARCHIVE_DEST_nwhen performing switchovers or failovers.
  • C. For Standard Edition, LOG_ARCHIVE_DUPLEX_DEST is used to configure redo transport, from the primary to the standby database.
  • D. When using the Data Guard Broker, an spfile is not required.
  • E. Up to 30 physical standby databases may exist within one configuration.
  • F. The Oracle recommendation for the number of standby redo log groups per thread is one more than the number of online redo log groups per thread

Answer: AEF

NEW QUESTION 11
Examine the Data Guard configuration:
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Which three will be true after a switchover to Dogs?

  • A. Sheep will be an enabled logical standby database.
  • B. Cats will be an enabled physical standby database
  • C. Dogs will be the primary database
  • D. Sheep will be a disabled logical standby database
  • E. Cats will be a disabled physical standby database

Answer: BCE

NEW QUESTION 12
Which three are prerequisites for enabling Fast-Start Failover?

  • A. The Fast-Start Failover target standby database must receive REDO directly from the primary database
  • B. Flashback Database must be enabled on both the primary database and the Fast-Start Failover target standby database.
  • C. Flashback Database must be enabled only on the Fast-Start Failover target standby database.
  • D. The configuration must be operating in either Maximum Performance or Maximum Availability mode
  • E. The configuration must be operating in either Maximum Performance or Maximum Protection mode
  • F. The Data Guard environment must be managed by the Data Guard Broker.

Answer: BDF

NEW QUESTION 13
Which two are true about database roles in an Oracle Data Guard Configuration?

  • A. a configuration consisting only of a primary and one or more physical standby databases can support a rolling release upgrade.
  • B. A Logical Standby Database can be converted to a Snapshot Standby Database.
  • C. A Logical Standby Database can cascade redo to a terminal destination
  • D. A Snapshot Standby Database can be a fast-start failover target
  • E. A Physical Standby Database can be converted into a Logical Standby Database.

Answer: BE

NEW QUESTION 14
Your expertise is requested for these customer requirements:
1. The Data Guard environment must be in maximum protection mode. 2 Reports must be offloaded to a physical standby database.
3. There must be no lag between the primary and standby databases that affect the reports produced.
4. The primary database must be resilient in case of a single network failure. Which solution is correct for these requirements?

  • A. two standby databases, at least one of them a physical standby with Real-Time Query enabled and the STANDBY_MAX_DELAY parameter set to zero, receiving redo from the primary with asynchronous transport
  • B. two standby databases, at least one of them a physical standby with Real-Time Query enabled and the STANDBY_MAX_DATA_DELAY parameter set to zero, receiving redo from the primary with synchronous transport
  • C. one physical standby database with Real-Time Query enabled, receiving redo from two Far Sync instances that are connected the primary
  • D. one physical standby database with Real-Time Query enabled and the STANDBY_MAX_DATA_DELAY parameter set to zero, receiving redo from the primary with synchronous transport
  • E. two physical standby databases with Real-Time Query enabled, receiving redo from the primary with the LOG_ARCHIVE_DEST_n attnbutes SYNC NOAFFIRM to minimize the performance impact on the primary.

Answer: B

NEW QUESTION 15
In which two cases is it possible to change the protection mode to maximum protection using Enterprise Manager Cloud Control?

  • A. a snapshot standby database is the only standby database in the Data Guard configuration.
  • B. A logical standby database is the only standby database in the data guard configuration.
  • C. A far sync instance is the only Data Guard configuration member receiving redo in synchronous mode.
  • D. Flashback is not enabled for either the primary database, the standby database, or both in the Data Guard configuration.
  • E. The primary and standby databases are hosted on different operating systems.

Answer: BE

NEW QUESTION 16
Which three are true concerning database states after a successful switchover?

  • A. If the former primary database became a logical standby database it will be in mount state
  • B. The new primary database will be open read-write.
  • C. The former primary database will always be open.
  • D. If the former primary database became a logical standby database it will be open read- write.
  • E. if the former primary database became a physical standby database it will always be open read-only.
  • F. If the former primary database became a physical standby database it will be in the same state as the former physical standby database

Answer: ABE

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