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When can CHAP perform a handshake? Choose 2
Disconnecting
While establishing connection
At any time after connection is established
CHAP can perform a handshake while establishing a connection or any time later when a connection is established. Need to add at the end of the questions the parenthetical reference of “(Pick two)” so that the student knows this could be a multiple answer question.
SOURCES PLEASEEE
wikipedia: CHAP is an authentication scheme used by Point to Point Protocol (PPP) servers to validate the identity of remote clients. CHAP periodically verifies the identity of the client by using a three-way handshake. This happens at the time of establishing the initial link (LCP), and may happen again at any time afterwards. The verification is based on a shared secret (such as the client's password).[2]
After the completion of the link establishment phase, the authenticator sends a "challenge" message to the peer.
The peer responds with a value calculated using a one-way hash function on the challenge and the secret combined.
The authenticator checks the response against its own calculation of the expected hash value. If the values match, the authenticator acknowledges the authentication; otherwise it should terminate the connection.
At random intervals the authenticator sends a new challenge to the peer and repeats steps 1 through 3.
https://en.wikipedia.org/wiki/Challenge-HandshakeAuthenticationProtocol
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