Oracle Fusion Middleware 12c: Oracle Service Bus Essentials — Question 10

Which two statements are true about enabling write-back flash cache? (Choose two.)

Answer options

• A. Before write-back flash cache is enabled, you need to drop the Flash Cache first.
• B. Write-back Flash Cache cannot be used on Extreme Flash Storage Servers.
• C. When enabling write-back flash cache in a rolling manner, DBCLI should be used to inactivate the grid disks on all cells first.
• D. When enabling write-back flash cache in a non-rolling manner, you need to drop the Persistent Memory Commit Accelerator (PMEMLog) first.
• E. Write-back flash cache is on by default for High Capacity Storage Servers in High Redundancy configurations.

Correct answer: A, D

Explanation

Option A is correct because the Flash Cache needs to be dropped before enabling write-back flash cache. Option D is also correct as the PMEMLog must be dropped when enabling it in a non-rolling manner. Options B, C, and E are incorrect as they do not accurately reflect the requirements and capabilities concerning write-back flash cache.