Which is the correct sequence to upgrade a vSphere infrastructure?
A.
vCenter Server>ESXi host> VMware Tools>VM compatibility
B.
ESXi host>vCenter Server> VMware Tools>VM compatibility
C.
vCenter host> ESXi host> VM compatibility> VMware Tools
D.
ESXi host>vCenter Server> VM compatibility>VMware Tools
Explanation:
https://kb.vmware.com/s/article/1010675
A is correct as per KB
https://kb.vmware.com/s/article/1010675
Before you upgrade the virtual hardware:
1-Create a backup or snapshot of the virtual machine.
2-Upgrade VMware Tools. On Microsoft Windows virtual machines, if you upgrade the virtual hardware before you upgrade VMware Tools, the virtual machine might lose its network settings.
A is correct