which servers are mail servers?

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

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

A.
Nslookup

B.
Port scanner

C.
Host

D.
Traceroute



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