James the security administrator is working on cryptographic authentication. What is the earliest version of NTP that supports a cryptographic authentication mechanism between peers?
A.
The earliest version is 5
B.
The earliest version is 4
C.
The earliest version is 3
D.
The earliest version is 2
E.
The earliest version is 1
Explanation:
Version 3 and above of NTP supports a cryptographic authentication mechanism between peers.
Reference: SAFE: Extending the Security Blueprint to Small, Midsize, and Remote-User Networks