Oracle Database 12c: RAC and Grid Infrastructure Administration — Question 85

Which two are true about rolling release upgrades in a Data Guard environment?

Answer options

• A. The background process DMON must be enabled on the primary and standby databases during a rolling release upgrade procedure.
• B. A physical standby database can be converted to a logical standby database temporarily.
• C. Rolling release upgrades require the background process RVWR to write flashback logs on the standby database.
• D. The KEEP IDENTITY clause ensures that a logical standby database keeps the same DBID as the primary database.
• E. The recovery point objective increases proportionally to the duration of the rolling release upgrade procedure.

Correct answer: B, D

Explanation

Option B is correct because a physical standby can indeed be converted to a logical standby for temporary purposes. Option D is also correct as the KEEP IDENTITY clause helps retain the same DBID. The other options either describe incorrect requirements or processes that do not apply to rolling release upgrades.