Go back to 72-640 - TS: Windows Server 2008 Active Directory Configuring

Question :-

Your network contains an enterprise root certification authority (CA). You need to ensure that a certificate issued by the CA is valid. What should you do?
Run syskey.exe and use the Update option.
Run sigverif.exe and use the Advanced option.
Run certutil.exe and specify the -verify parameter.
Run certreq.exe and specify the -retrieve parameter.

Want to practice for 72-640 - TS: Windows Server 2008 Active Directory Configuring ? Click here.