Home » VMware » VCP550D » Which two options are available to ensure that the upgraded switch will be compatible with these hosts?
An administrator is upgrading a vSphere Distributed Switch. The existing switch is version 5.0 and the administrator wants to upgrade to the latest version possible. The environment contains several ESXi 5.1 hosts.
Which two options are available to ensure that the upgraded switch will be compatible with these hosts? (Choose two.)
A. Upgrade the vSphere Distributed Switch to 5.5
B. Upgrade the ESXi 5.1 hosts to version 5.5, then upgrade the vSphere Distributed Switch to 5.5
C. Upgrade the vSphere Distributed Switch to 5.1
D. Upgrade the ESXi host switches to 5.5, then upgrade the vSphere Distributed Switch to 5.5
Correct Answer: BC
Explanation/Reference:
Explanation:
The ESXi hosts that are added to the switch must be upgraded to at least the same version level as the switch. The hosts can run at a version higher than the switch but cannot run at a version lower than the switch.
B: Thus, to upgrade the switch to version 5.5, the hosts must first be upgraded as they can run at a version higher than the switch. Hosts cannot run at a version lower than the switch. The switch can then be upgraded to version 5.5.
C: As the hosts are on version 5.1 and the switch is version 5.0, the switch can be upgraded to version 5.1.
Incorrect Answers:
A, D: The ESXi hosts that are added to the switch must be upgraded to at least the same version level as the switch. The hosts can run at a version higher than the switch but cannot run at a version lower than the switch.
References:
Ferguson, Bill, The Official VCP5 Certification Guide, VMware Press, New York, 2013, p 33