Certified Network Defender (CND) — Question 72

Which of the following is a free security-auditing tool for Linux?

Answer options

• A. SAINT
• B. SATAN
• C. Nessus
• D. HPing

Correct answer: C

Explanation

Nessus is the correct answer as it is widely recognized as a free security-auditing tool for Linux. SAINT and SATAN are older tools that have limitations and are not primarily free, while HPing is a network tool used for crafting and analyzing TCP/IP packets rather than security auditing.