Which of the following is the MOST likely cause?

Due to a policy change, a few of a customer’s application VMs have been migrated to synchronously replicated storage. The customer now reports that performance is lower. The systems administrator checks the resource usage and discovers CPU utilization is at 60% and available memory is at 30%.

Which of the following is the MOST likely cause?
A . There is not enough vCPU assigned
B . The application is not compatible with the new settings
C . The new configuration is adding latency
D . The memory of the VM is underallocated

View Answer

Answer: C

Explanation:

Latency is the delay or time taken for data to travel from one point to another in a network or system. Latency can affect the performance of applications and processes that depend on fast and reliable data transfer. Synchronous replication is a method of data replication that ensures that data is written to two or more storage devices at the same time, providing high availability and consistency. However, synchronous replication can also introduce latency, as the write operation has to wait for the confirmation from all the replicated devices before completing. The new configuration of migrating some application VMs to synchronously replicated storage is most likely adding latency, which can lower the performance of the applications.

Reference: [CompTIA Cloud+ Certification Exam Objectives], page 10, section 1.5