Which of the following files is not necessary when configuring DNS in Linux?

A.
The named.conf file.

B.
The resolv.conf file.

C.
The named.local file.

D.
The lmhosts file.

Explanation:
The lmhosts file is a file that maps NETBIOS names to IP addresses,
and would be used when SMB transactions were being used to contact a Windows
machine in the absence of a WINS server. Lmhosts is to WINS as hosts is to DNS,
just a way of specifying entries in a local hardcoded table. Since we are configuring
DNS, lmhosts would not be used here.
Incorrect Answers:
A: The named.conf file, although in a different format, was formerly known (in earlierversions of
BIND) as the named.boot file. This file contains the information on what typeof DNS server is
running (Primary, Secondary, Cache), and where critical files arelocated, including those that
actually define the domains.
B: The resolv.conf file is used to associate other domains with their respective nameserver. This
allows calls for a specific domain to be rerouted to the appropriatenameserver.
C: The named.local file is a requirement to handle a lookback network.