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Exam 1z0-066 topic 1 question 53 discussion

Actual exam question from Oracle's 1z0-066
Question #: 53
Topic #: 1
[All 1z0-066 Questions]

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.
Show Suggested Answer Hide Answer
Suggested Answer: BDF 🗳️
B: You enable the Flashback Mode both on the primary database and on the standby database.
D: In Maximum Availability mode, Fast-Start Failover (FSFO) guarantees that no transaction that has received a commit acknowledgment will be lost during a failover.
Oracle Database 11g FSFO adds support for Maximum Performance mode (async redo transfer), providing the flexibility to trade durability for performance.
F: The Dataguard Broker Observer (Observer) is used when fast start failover is required. Fast start failover is simply an automatic failover to the standby database
Incorrect Answers:
C: You enable the Flashback Mode both on the primary database and on the standby database.
References:
http://dbasoumya.blogspot.se/2015/07/fast-start-failoverfsfo-in-oracle-11g.html http://www.oracle.com/technetwork/articles/smiley-fsfo-084973.html
by KLM at Jan. 6, 2020, 8:53 a.m.

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Rockfics
1 year, 3 months ago
Selected Answer: ABF
Fast Start Failover can't be with Fast Start SYNC or Cascade Flashback is necessary in both. DGMRL is necessary in Fast Start Failover configuration
upvoted 1 times
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ScottL
1 year, 3 months ago
B, D, F - prior to 12.2 Starting with Oracle Database 12c Release 2, the maximum protection mode can be used, but with two or more standby databases
upvoted 1 times
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KLM
5 years, 1 month ago
D is wrong.
upvoted 1 times
KLM
5 years, 1 month ago
:) for 12.1 is D ok, wrong is for 12.2
upvoted 1 times
Kamaelk
5 years ago
Why? https://docs.oracle.com/en/database/oracle/oracle-database/12.2/dgbkr/using-data-guard-broker-to-manage-switchovers-failovers.html#GUID-7EAF1865-2F92-4451-8565-D3C6EC4F8005
upvoted 2 times
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