Crucial Exams

CompTIA Linux+ XK0-006 (V8) Practice Question

A systems administrator is hardening a new Linux server and wants to enforce the use of SSH key-based authentication exclusively. The goal is to completely disable all forms of password-based logins to mitigate brute-force attacks. Which of the following sets of directives in the /etc/ssh/sshd_config file will achieve this security posture?

  • PubkeyAuthentication yes PasswordAuthentication yes ChallengeResponseAuthentication yes

  • PubkeyAuthentication yes PasswordAuthentication no ChallengeResponseAuthentication no

  • PubkeyAuthentication no PasswordAuthentication yes ChallengeResponseAuthentication no

  • PermitRootLogin without-password PasswordAuthentication yes ChallengeResponseAuthentication yes

CompTIA Linux+ XK0-006 (V8)
Security
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