CompTIA Linux+ (XK0-005) — Question 128

A junior systems administrator has just generated public and private authentication keys for passwordless login. Which of the following files will be moved to the remote servers?

Answer options

• A. id_dsa.pem
• B. id_rsa
• C. id_ecdsa
• D. id_rsa.pub

Correct answer: D

Explanation

The correct answer is D, id_rsa.pub, as it is the public key that needs to be placed on remote servers for passwordless authentication. The other options are private keys or unrelated files that should remain secure on the local machine.