An administrator is upgrading a vCenter Server Appliance and wants to ensure that all the prerequisites are met.
What action must be taken before upgrading the vCenter Server Appliance?
A.
Install the Client Integration Plug-in.
B.
Install the database client.
C.
Install the ODBC connector.
D.
Install the Update Manager Plug-in.
Explanation:
Explanation/Reference:
A is correct:
https://pubs.vmware.com/vsphere-60/index.jsp#com.vmware.vsphere.upgrade.doc/GUID-D6E8C895-5C0A-4D5E-9773-F5760E1DE0B2.html?resultof=%2522%2543%256c%2569%2565%256e%2574%2520%2549%256e%2574%2565%2567%2572%2561%2574%2569%256f%256e%2520%2550%256c%2575%2567%252d%2569%256e%2522%2520
To upgrade to the latest version of the vCenter Server Appliance, you must use the Client Integration Plug-In.
https://kb.vmware.com/s/article/2106760, this mentions the pre rquisite
https://kb.vmware.com/s/article/2106760