CompTIA Network+ (N10-007) — Question 368

While working on a Linux-based OS, a technician experiences an issue accessing some servers and some sites by name. Which of the following command-line tools should the technician use to assist in troubleshooting?

Answer options

• A. dig
• B. iptables
• C. ifconfig
• D. traceroute

Correct answer: A

Explanation

The correct answer is A, 'dig', which is specifically designed for DNS lookup and helps troubleshoot name resolution issues. The other options, such as 'iptables', are related to firewall rules, 'ifconfig' is used for network interface configuration, and 'traceroute' helps track the path packets take, but none directly address DNS resolution.