You work as a Network Administrator for Perfect Solutions Inc. The company has a Linux-based
network. You want to modify a configuration file in a Linux server. Which of the following utilities
will you use to accomplish the task?

A.
VI

B.
NMAP

C.
MS Word

D.
GZIP

Explanation:

The VI is a visual interactive text editor that allows a user to create, modify, and store files on a
Linux computer. It works in the following modes:

Command: This is the default mode of the command. Various commands can be used in this
mode to manipulate the opened text.
Input: In this mode, a user can insert text directly in the text screen area.
Answer option D is incorrect. The GNU zip (GZIP) utility is a compression utility that is used to
compress files for saving space. It creates files with the .gz extension. It can also compress tar
files. In order to unzip files with the .gz extension, the
GUNZIP command is used.
Answer option B is incorrect. The nmap utility, also commonly known as port scanner, is used to
view the open ports on a Linux computer. It is used by administrators to determine which services
are available for external users. This utility helps administrators in deciding whether to disable the
services that are not being used in order to minimize any security risk.
Answer option C is incorrect. MS Word is a Windows-based utility. Hence, it cannot be used in
Linux.