Oracle Database 12c: RAC and Grid Infrastructure Administration — Question 53

Examine the Fast-start configuration:
DGMGRL> show fast_start failover;

Fast-Start Failover: ENABLED -

Threshold : 30 seconds -

Target: sheep -

Observer : 017.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?

Answer options

• A. The observer will initiate a failover when the primary database is unable to produce local archived redo log files.
• B. An automatic failover will be initiated even if the target standby database lags behind the primary.
• C. The observer is running.
• D. A failover may occur if the observer has lost connectivity to the primary database, even if the Fast-Start Failover target standby database has a good connection to the primary database.
• E. The configuration operates in Maximum Availability mode.
• F. The configuration operates in Maximum Performance mode.

Correct answer: A, C, E

Explanation

Option A is correct because the observer's role includes initiating failover under certain conditions, including the inability to produce archived redo logs. Option C is correct as it indicates that the observer is operational. Option E is correct since the configuration is designed to operate in Maximum Availability mode. Options B, D, and F are incorrect as they either misrepresent the failover conditions or the operational mode of the configuration.