Which command is described as a name server lookup utility?

Which command is described as a name server lookup utility?

• A. Dig
• B. Nslookup
• C. Netstat
• D. Arp

Answer: (A)

DNS queries involve asking a name server to resolve a hostname to an IP address. The command most commonly described as a name server lookup utility is nslookup. It directly queries a DNS server to look up the mapping for a domain, and you can choose which server to use or let it use the default. Dig is also used for DNS lookups and is a powerful, flexible alternative often favored for deeper diagnostics, but nslookup is the traditional tool described as a name server lookup utility. Netstat and Arp serve different purposes: netstat shows active connections and ports, while arp reveals MAC-to-IP address mappings on the local network.

DNS queries involve asking a name server to resolve a hostname to an IP address. The command most commonly described as a name server lookup utility is nslookup. It directly queries a DNS server to look up the mapping for a domain, and you can choose which server to use or let it use the default. Dig is also used for DNS lookups and is a powerful, flexible alternative often favored for deeper diagnostics, but nslookup is the traditional tool described as a name server lookup utility. Netstat and Arp serve different purposes: netstat shows active connections and ports, while arp reveals MAC-to-IP address mappings on the local network.