Oracle Database Administration 2019 Certified Professional — Question 69

Identify two reasons for the gc current block busy wait event. (Choose two.)

Answer options

• A. Either the local or the remote CPUs have too large a run queue.
• B. The Cluster Interconnect is congested.
• C. A block is busy in the local cache.
• D. A block is busy in the remote cache.

Correct answer: B, D

Explanation

The correct answers are B and D because congestion in the Cluster Interconnect can lead to delays in accessing shared resources, causing busy waits. Additionally, a block being busy in the remote cache indicates that the data is not readily available, which also contributes to the wait event. Options A and C do not specifically address the reasons for the gc current block busy wait event.