Oracle Cloud Infrastructure 2019 Developer Associate — Question 31

You have an application running on Oracle Cloud Infrastructure. You identified that the read and write operations are slowing your application down enough to impair user access. The application is currently using a VM.Standard1.2 compute without any block storage attached to it.
Which two options allow you to increase disk performance? (Choose two.)

Answer options

• A. Terminate the compute instance preserving the boot volume. Create a new compute instance using a VM Dense IO shape using the boot volume preserved.
• B. Terminate the compute instance preserving the boot volume. Create a new compute instance using a VM Standard shape and attach a new block volume to host your application.
• C. Create a backup of the boot volume. Create a new compute instance using a VM Dense IO shape and restore the backup.
• D. Terminate the compute instance and create a backup of the boot volume. Create a new compute instance using a VM Dense IO shape and restore the backup.

Correct answer: B, C

Explanation

Option B is correct because attaching a new block volume to a VM Standard shape can improve performance for the application. Option C is also valid as creating a new compute instance using a VM Dense IO shape can enhance performance due to its optimized architecture. The other options, A and D, do not necessarily address the performance issue effectively since they involve using a VM Dense IO shape only without the addition of a block volume or do not provide a new block volume to enhance performance.