VCP-VCF Administrator 2024 Question 308
Single answerA VMware Cloud Foundation administrator reports that a virtual machine in their vSphere environment is experiencing degraded performance. Upon inspection, the administrator notices that the virtual machine is experiencing high CPU ready time. What could be the most likely cause of this issue?
- A
The virtual machine is configured with more vCPUs than the underlying physical host can handle.
- B
The virtual machine has insufficient memory allocated, causing excessive swapping to disk.
- C
The host running the virtual machine is experiencing a storage latency issue.
- D
The virtual machine's network adapter is misconfigured, leading to dropped packets.
Show answer and explanation
Correct answer: A
Explanation
High CPU ready time indicates that the virtual machine is waiting for physical CPU resources to become available. This often happens when too many vCPUs are allocated to the virtual machine relative to the host's physical CPU resources, causing scheduling contention. To resolve this, the administrator should reduce the number of vCPUs or ensure that the host has sufficient CPU resources available.
- A. Correct.
High CPU ready time is typically caused when the virtual machine is configured with too many vCPUs, leading to contention for CPU resources on the host. This is the most likely cause in this scenario.
- B. Incorrect.
While insufficient memory and swapping can degrade performance, it does not specifically relate to high CPU ready time.
- C. Incorrect.
Storage latency issues can cause performance degradation, but they are unrelated to CPU ready time.
- D. Incorrect.
Misconfigured network adapters can lead to network issues but are not linked to high CPU ready time.