2V0-21.23 Question 335
Select 2A systems administrator is tasked with updating a virtual machine (VM) running on an ESXi host in a vSphere environment. The VM requires additional CPU and memory resources to handle increased workloads. The administrator must ensure there is minimal disruption to the application running on the VM. Which steps should the administrator take to achieve this?
- A
Use vSphere Web Client to hot-add CPU and memory to the VM, ensuring the VM supports hot-add functionality.
- B
Power off the VM, update the CPU and memory settings, and power it back on.
- C
Verify that the VM's operating system and application support hot-add before making changes.
- D
Migrate the VM to another host using vMotion before performing the update.
- E
Upgrade the VM's compatibility level to the latest version to allow CPU and memory changes.
Show answer and explanation
Correct answers: A, C
Explanation
To update a VM with minimal disruption, the administrator can use the hot-add feature to add CPU and memory resources without downtime. However, this requires ensuring that the VM supports hot-add functionality and verifying that the guest OS and applications can handle these updates. Powering off the VM or upgrading its compatibility level is unnecessary unless specific compatibility issues arise.
- A. Correct.
Correct: Hot-add functionality allows the addition of CPU and memory resources to a running VM without downtime, provided the functionality is supported by the VM's settings and guest OS.
- B. Incorrect.
Incorrect: Powering off the VM would cause downtime, which contradicts the requirement for minimal disruption.
- C. Correct.
Correct: It's essential to ensure that the guest operating system and applications support hot-add to avoid potential issues.
- D. Incorrect.
Incorrect: Migrating the VM to another host using vMotion is not required for updating CPU and memory resources in this scenario.
- E. Incorrect.
Incorrect: Upgrading the VM's compatibility level is not a prerequisite for adding CPU or memory unless the VM's existing level does not support the required changes, which is not specified in this scenario.