2V0-21.23 Question 418
Select 3An administrator is tasked with upgrading the firmware on a set of ESXi hosts in their environment. The environment is managed by vCenter Server, and the administrator wants to ensure minimal disruption to the workloads running on the hosts. Which of the following steps should the administrator take to achieve this?
- A
Place the ESXi host into Maintenance Mode before performing the firmware upgrade.
- B
Use vSphere Update Manager (VUM) or Lifecycle Manager to apply the firmware upgrade to the ESXi hosts.
- C
Manually update the firmware on each host by booting into the BIOS update tool provided by the hardware vendor.
- D
Ensure that the ESXi hosts have the latest VMware Tools version installed before proceeding with the firmware upgrade.
- E
Verify host compatibility with the new firmware version using the VMware Compatibility Guide (VCG) prior to the upgrade.
Show answer and explanation
Correct answers: A, B, E
Explanation
Firmware upgrades for ESXi hosts should follow a structured process to ensure minimal disruption and avoid compatibility issues. Placing the host into Maintenance Mode ensures workloads are evacuated, while using vSphere Update Manager (VUM) or Lifecycle Manager streamlines the upgrade process in a vCenter Server environment. Verifying compatibility with the VMware Compatibility Guide is essential to prevent potential hardware or firmware conflicts. These steps help maintain a stable and efficient VMware infrastructure.
- A. Correct.
Placing the ESXi host into Maintenance Mode ensures that workloads are evacuated and no disruptions will occur during the upgrade process. This is a recommended step when performing firmware upgrades.
- B. Correct.
Using vSphere Update Manager (VUM) or Lifecycle Manager is the preferred and automated method for applying firmware upgrades in environments managed by vCenter Server, reducing manual effort and minimizing errors.
- C. Incorrect.
Manually updating the firmware via BIOS tools is not the recommended approach in a vCenter-managed environment as it is time-consuming and prone to errors. Automated tools like VUM or Lifecycle Manager should be used instead.
- D. Incorrect.
While keeping VMware Tools up-to-date is a best practice, it is not directly relevant to the process of upgrading ESXi firmware.
- E. Correct.
Verifying host compatibility with the new firmware using the VMware Compatibility Guide (VCG) is a critical step to ensure that the firmware upgrade does not cause issues with ESXi or the hardware.