By default, how often is the vCenter vpx user password automatically changed?
A.
15 days
B.
60 days
C.
30 days
D.
45 days
Explanation:
https://pubs.vmware.com/vsphere-51/index.jsp?topic=%2Fcom.vmware.vsphere.security.doc%
2FGUID-96210743-0C17-4AE9-89FC-76778EC9D06E.html
A
Also, agree with the explanation, and you can check the below KB :
https://kb.vmware.com/s/article/2144966
mostafa, A is incorrect — even based off your own ref. link. it is C – 30days.