CompTIA Network+ (N10-009) — Question 342

A network administrator thinks a change was made to mail servers at comptia.org. Which of the following should the administrator execute to verify the change?

Answer options

• A. ping www.comptia.org
• B. dig comptia.org ANY
• C. nslookup -type=ns coir.ptia.org
• D. tracert comptia.org

Correct answer: B

Explanation

The correct answer is B, as the 'dig' command with 'ANY' type will provide comprehensive DNS records, allowing the administrator to verify any changes made to the mail servers. Option A, 'ping', only checks for the server's reachability but not specific DNS records. Option C is incorrect due to the typo in the domain name, which would lead to an invalid query. Option D, 'tracert', traces the route to the server but does not provide information about DNS changes.