Exam 2V0-21.23 topic 1 question 20 discussion

D. Migrating to another host seems like the sensible option, but this KB suggests Restarting the vCenter might be the answer. https://kb.vmware.com/s/article/82562 I'm guessing that if the issue is communication between the vCenter and the Host, a vMotion could become stuck if you're unlucky. As for installing the tools, you need to have access to the OS to do so.

B. Normally it would be install vmware tools. but i have no access. so i presume that the host is faulty

You can't gracefully restart the vm, if VMware tools is not installed

Restart vCenter is the only sensible option when you have no access to Guest OS. VMware tools installation needs to be done inside the GuestOS by either mounting the ISO directly or installing the package through a package manager. RT clicking the VM and clicking Install VMware Tools will only mount the ISO of the current installed VMware tools installed on your ESXi host.

It says gracefully restart which would be unavailable if VMware Tools is not installed.

Option A From https://core.vmware.com/resource/vsphere-replication-technical-overview It recommends to upgrade hw version when detected symptoms like: Some virtual machine operations are greyed out and unavailable

VMware Tools allows detailed guest information to be displayed as well as allowing you to perform operations on the guest OS, e.g. graceful shutdown, reboot, etc. You should install VMware Tools.

restart vcenter https://kb.vmware.com/s/article/2048748

Answer D. If the restart option is greyed out, that means the VMware Tools are not installed, or there is an issue on vCenter. If the VMware Tools are not installed, the only way to make the initial install is to log onto the guest OS...which is impossible here. We can then suppose the VMware Tools are already installed, but the communication with the vCenter does not work. So we restart the vCenter.

Install VM Tools

Installing VMware Tools will enable the graceful restart option for the virtual machine, as well as other features such as time synchronization and guest OS customization. It's not necessary to log into the OS in order to install VMware Tools. In vSphere Client – Hosts and Clusters view > right-click the Virtual Machine > Guest OS > Install VMware Tools.

Update to D --> Because no Access to OS

Must be D since according to this document (https://kb.vmware.com/s/article/1014294), you have to log on to a VM in order to install VMware Tools. The question says there's no access to the OS, and thus the administrator *cannot* install VMware Tools.

Instal Tools is correct

https://kb.vmware.com/s/article/82562 KB article stating issue can be caused by communication issue to be fixed by restarting vCenter

Is it expected that the VM has VMware Tools installed? It is a key information that is missing and are needed for gracefully restart/shutdown. This information completely changes the importance of the second one with "no access to log onto the operating system". If there are VMware Tools and the options are greyed out, then it can be vCenter problem, if not you need to install them on the VM. Probably the worst question in this dump.

C is not correct, because to install vmtools you need to have access to the OS: if you select install vmtoos from vCenter, there are only two options available: "mount" and "cancel". So, is not automatic process. I agree with mkhlszf, option D (restart vcenter) is the best option based in this KB: https://kb.vmware.com/s/article/82562