Which of the following commands can a network technician use to check whether the DNS server
for a given domain is reachable?
A.
nmap
B.
nbtstat
C.
dig
D.
arp
Explanation:
The command dig is a tool for querying DNS nameservers for information about host addresses,
mail exchanges, nameservers, and related information. This tool can be used from any Linux
(Unix) or Macintosh OS X operating system. The most typical use of dig is to simply query a single
host.