Which command helps verify DNS resolution on a Windows client when connectivity issues are suspected?

Which command helps verify DNS resolution on a Windows client when connectivity issues are suspected?

• A. nslookup
• B. Task Manager
• C. Disk Cleanup
• D. Resource Monitor

Answer: (B)

Diagnosing DNS resolution on Windows is done with the nslookup command. It queries a DNS server to resolve a hostname to its IP address, letting you confirm whether name resolution is functioning and which server is replying. If you get an IP back, DNS is working for that name; if you get an error, the DNS path or configuration may be the problem. You can also specify a particular DNS server to test its response directly, helping isolate where an issue lies. The other options don’t perform DNS lookups: Task Manager focuses on processes and performance, Disk Cleanup frees disk space, and Resource Monitor shows system activity but isn’t used to verify hostname resolution.

Diagnosing DNS resolution on Windows is done with the nslookup command. It queries a DNS server to resolve a hostname to its IP address, letting you confirm whether name resolution is functioning and which server is replying. If you get an IP back, DNS is working for that name; if you get an error, the DNS path or configuration may be the problem. You can also specify a particular DNS server to test its response directly, helping isolate where an issue lies. The other options don’t perform DNS lookups: Task Manager focuses on processes and performance, Disk Cleanup frees disk space, and Resource Monitor shows system activity but isn’t used to verify hostname resolution.