If you don’t know the MAC address of a Linux-based machine, what command-line utility can you use to
ascertain it?

A.
macconfig

B.
ifconfig

C.
ipconfig

D.
config

Explanation:
To find MAC address of a Unix/Linux workstation, use ifconfig or ip a.
Incorrect Answers:
A: macconfig is not a valid command-line utility.
C: To find MAC address of a Windows-based workstation, use ipconfig.
D: config on its own will not solve the problem.

Dulaney, Emmett and Chuck Eastton, CompTIA Security+ Study Guide, 6th Edition, Sybex, Indianapolis,
2014, p. 60