Which tool provides information for DNS problems and helps map names to IP addresses?

Which tool provides information for DNS problems and helps map names to IP addresses?

• A. Nslookup
• B. Dig
• C. Ipconfig
• D. Route

Answer: (A)

The capability being tested is querying DNS to translate a hostname into an IP address and diagnosing DNS problems. nslookup is designed specifically to query DNS servers and return the mapping from a domain name to its IP address. It lets you see exactly what IP a hostname resolves to, which DNS server answered, and what records were returned (for example, the A record for IPv4 addresses). You can also query different record types and specify different DNS servers to narrow down where a problem might lie, making it a direct, practical tool for DNS troubleshooting and name-to-IP mapping. In contrast, ipconfig shows your network configuration and can reveal which DNS servers you’re using, and can flush the DNS cache, but it doesn’t perform the actual DNS resolution. Route displays routing information for packets, not DNS results. Dig is another DNS lookup tool with detailed output and is common on Unix-like systems, but the scenario described aligns with nslookup as the go-to option for quick DNS lookups and troubleshooting.

The capability being tested is querying DNS to translate a hostname into an IP address and diagnosing DNS problems. nslookup is designed specifically to query DNS servers and return the mapping from a domain name to its IP address. It lets you see exactly what IP a hostname resolves to, which DNS server answered, and what records were returned (for example, the A record for IPv4 addresses). You can also query different record types and specify different DNS servers to narrow down where a problem might lie, making it a direct, practical tool for DNS troubleshooting and name-to-IP mapping.

In contrast, ipconfig shows your network configuration and can reveal which DNS servers you’re using, and can flush the DNS cache, but it doesn’t perform the actual DNS resolution. Route displays routing information for packets, not DNS results. Dig is another DNS lookup tool with detailed output and is common on Unix-like systems, but the scenario described aligns with nslookup as the go-to option for quick DNS lookups and troubleshooting.