As telnet is widely know to be insecure, one time passwords (OPIE) offer a great alternative. After
a user logs on remotely, OPIE will issue a challenge. What two elements will thi challenge
contain?( Choose two)
A.
CHAP
B.
A hashed value
C.
A random value
D.
A seed number
E.
A sequence number
Explanation:
OPIE is based on S/Key, supports MD5, and features a challenge that contains the following two
elements: A seed value, which is a fixed number for each account, and a sequence number, which
begins at 499 and decrements each time a user logs in.