2V0-620 · Question #87
An administrator is upgrading a vSphere Distributed Switch. The existing switch is version 6.0 and the administrator wants to upgrade to the latest version possible. The environment contains several…
The correct answer is B. Upgrade the ESXi 5.5 hosts to version 6.0, then upgrade the vSphere Distributed Switch to 5.5 C. Upgrade the vSphere Distributed Switch to 5.1. A vSphere Distributed Switch version cannot exceed the minimum ESXi host version connected to it, so upgrading hosts or selecting a compatible lower VDS version are the valid paths when host versions are constrained.
Question
An administrator is upgrading a vSphere Distributed Switch. The existing switch is version 6.0 and the administrator wants to upgrade to the latest version possible. The environment contains several ESXi 6.1 hosts. Which two options are available to ensure that the upgraded switch will be compatible with these hosts? (Choose two.)
Options
- AUpgrade the vSphere Distributed Switch to 6.0
- BUpgrade the ESXi 5.5 hosts to version 6.0, then upgrade the vSphere Distributed Switch to 5.5
- CUpgrade the vSphere Distributed Switch to 5.1
- DUpgrade the ESXi host switches to 5.5, then upgrade the vSphere Distributed Switch to 5.5
How the community answered
(38 responses)- A8% (3)
- B74% (28)
- D18% (7)
Why each option
A vSphere Distributed Switch version cannot exceed the minimum ESXi host version connected to it, so upgrading hosts or selecting a compatible lower VDS version are the valid paths when host versions are constrained.
Upgrading the VDS to version 6.0 while hosts remain at a lower version would violate the compatibility rule that VDS version cannot exceed the connected ESXi host version, risking host disconnection.
Upgrading the ESXi hosts to version 6.0 raises the minimum host version in the environment, after which the VDS can be set to a version compatible with 6.0 hosts, satisfying the compatibility requirement.
Keeping or setting the VDS to version 5.1 is compatible with a broad range of ESXi host versions since the VDS version must not exceed the host version, making 5.1 a safe common denominator.
Upgrading ESXi host vSwitches to 5.5 and then setting the VDS to 5.5 is redundant and incorrect in sequencing - host vSwitch versions and VDS versions are managed independently and the VDS version is set at the vCenter level.
Concept tested: vSphere Distributed Switch version compatibility with ESXi hosts
Source: https://docs.vmware.com/en/VMware-vSphere/6.0/com.vmware.vsphere.networking.doc/GUID-A15E6CDA-9E97-4236-B63E-672E601E4164.html
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