CompTIA Network+ (N10-009) — Question 328

A network administrator changed an external DNS to point customers to a new server. Which of the following tools should the administrator use to test the new server’s configuration?

Answer options

• A. ping
• B. tracert
• C. tcpdump
• D. nslookup

Correct answer: D

Explanation

The correct answer is D, nslookup, as it is specifically designed for querying DNS records and can confirm if the new server is correctly resolving. Options A (ping) and B (tracert) are more suited for testing connectivity and route tracing, respectively, while C (tcpdump) is a packet analyzer, not specifically for DNS configuration testing.