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Which command, tool or service on a UNIX network converts names to IP addresses…

Which command, tool or service on a UNIX network converts names to IP addresses and IP addresses to names, and can also specify which servers are mail servers?

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A.
Port scanner

B.
Traceroute

C.
Host

D.
Nslookup

Explanation:
The Host command can provide these functions.
Incorrect Answers:
A: A port scanner is used to check well known ports to find out which services are running at a particular target node.
B: Traceroute is used to trace the network hops and nodes between the host issuing the command and the target IP address. This is a diagnostic tool based on ICMP.
D: NSLookup is used to lookup names in a DNS server. It will provide information, including IP addresses and mail servers, but only if the name is registered in DNS.
NSLookup can point to a specified name server.


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