Which tool is primarily used in Linux to look up who owns a domain or IP block?

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Multiple Choice

Which tool is primarily used in Linux to look up who owns a domain or IP block?

Explanation:
Ownership lookup is done with the whois service. Whois queries public registration databases to reveal who owns a domain or who has been allocated a block of IP addresses, along with contact and registration dates. On Linux, the whois command fetches this information from registries and RIRs, giving you the registrant or organization responsible for the asset. This differs from DNS query tools like dig or nslookup, which are used to discover DNS records (such as the IP address a domain resolves to) rather than who owns the domain or IP block. Route (or traceroute) is for mapping the path packets take to a destination, not for ownership data. So the tool best suited to look up ownership is whois.

Ownership lookup is done with the whois service. Whois queries public registration databases to reveal who owns a domain or who has been allocated a block of IP addresses, along with contact and registration dates. On Linux, the whois command fetches this information from registries and RIRs, giving you the registrant or organization responsible for the asset.

This differs from DNS query tools like dig or nslookup, which are used to discover DNS records (such as the IP address a domain resolves to) rather than who owns the domain or IP block. Route (or traceroute) is for mapping the path packets take to a destination, not for ownership data. So the tool best suited to look up ownership is whois.

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