Mark has been hired by a company to work as a Network Assistant. He is assigned the task to configure a dial-up connection. He is configuring a laptop. Which of the following protocols should he disab

MSCHAP uses a challenge-response mechanism with MD4 hashing, meaning the password is never sent in plaintext and disabling it would reduce security.

SPAP (Shiva PAP) uses reversible encryption for the password, which is weak but still encrypted - disabling it does not directly address plaintext transmission.

MSCHAPv2 provides mutual authentication and encrypts credentials using a challenge-response scheme, so disabling it would weaken rather than improve password protection.

PAP sends the username and password in cleartext with no encryption or hashing, making it trivially vulnerable to interception. Disabling PAP forces the connection to fall back to an authentication protocol that encrypts or hashes credentials. In a dial-up configuration, leaving PAP enabled allows an attacker on the line to capture credentials in plain text.