CompTIA Security+ (SY0-601) — Question 415

Which of the following is the best method for ensuring non-repudiation?

Answer options

• A. SSO
• B. Digital certificate
• C. Token
• D. SSH key

Correct answer: B

Explanation

A digital certificate is the best method for ensuring non-repudiation because it provides a verifiable way to confirm the identity of the sender and the integrity of the message. Other options, like SSO, tokens, and SSH keys, do not offer the same level of assurance that the sender cannot deny having sent the message.