1Z0-076 practice question 3 of 25

Examine the Data Guard configuration: DGMGRL> show configuration; Configuration - Animals Protection Mode: Max Availability Databases: dogs - Primary…

Examine the Data Guard configuration: DGMGRL> show configuration; Configuration - Animals Protection Mode: Max Availability Databases: dogs - Primary database sheep - Physical standby database cats - Physical standby database Fast-Start Failover: DISABLED Configuration Status: SUCCESS An attempt to enable fast-start failover raises an error: DGMGRL> enable fast_start failover; Error: ORA-16693: requirements not met for enabling fast-start failover Failed. Identify three possible reasons for this error.

Answer options

A: The fastStartFailoverTarget property is not set on Dogs. Correct answer

B: The LogxptModr property is set to async on Sheep while Sheep is the target standby database. Correct answer

C: The LogXptMode property is set to FASTSYNC on Cats while Sheep is the target standby database.

D: The LogXptMode property is set to async on Dogs. Correct answer

E: The LogXptMode property is set to fastsync on Dogs.

Correct Answer:

A. The fastStartFailoverTarget property is not set on Dogs.; B. The LogxptModr property is set to async on Sheep while Sheep is the target standby database.; D. The LogXptMode property is set to async on Dogs.

Explanation

Fast-Start Failover (FSFO) requires synchronous transport (SYNC or FASTSYNC) between the primary and the designated target standby, and the primary’s LogXptMode must therefore not be ASYNC. In addition, each primary and its target standby must have the FastStartFailoverTarget property set. If these conditions are missing, Broker raises ORA-16693 when you attempt to enable FSFO.

Why Incorrect

C. Transport mode on a non-target standby (Cats) is irrelevant to FSFO requirements.
E. FASTSYNC on the primary (Dogs) is an allowed synchronous transport and therefore satisfies FSFO prerequisites.

References

1. Oracle Data Guard Broker Admin Guide 19c, Sec. 6.2 “Fast-Start Failover Requirements” (F32926-21, p. 6-3).

2. Oracle Database 19c Data Guard Concepts & Administration, Sec. 12.3 “Synchronous Redo Transport Modes” (E96232-24, p. 12-5).

3. Oracle Doc ID 1625597.1 “ORA-16693 when Enabling FSFO” (Oracle Support, official).

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