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?

Which of the following is a utility that can function as an independent spell checker?

You want to repeat the last command you entered in the bash shell. Which of the following
commands will you use?

Which of the following SHELL commands displays currently logged-in users and their tasks?

John works as a Network Administrator for Perfect Solutions Inc. The company has a Linux-based
network. John is working as a root user on the Linux operating system. He wants to change the
modified date and time of the file private.txt to 11 Nov 2009 02:59:58 am. Which of the following
commands will John use to accomplish his task?
Each correct answer represents a complete solution. Choose all that apply.

Which of the following are the Graphical Mail clients in Red Hat Enterprise Linux?
Each correct answer represents a complete solution. Choose two.

You work as a Network Administrator for Net Perfect Inc. The company has a Linux-based
network.
By using the VI utility, you have created a document that has 100 lines. You want to replace all the
occurrences of “net” with “Net” in the first 50 lines of the document. Which of the following
commands will you use?

Which of the following commands will you execute to fix other writable files in your home
directory?

John works as a Network Administrator for Perfect Solutions Inc. The company has a Debian
Linuxbased network. He is working on the bash shell in which he creates a variable VAR1. After
some calculations, he opens a new ksh shell. Now, he wants to set VAR1 as an environmental
variable so that he can retrieve VAR1 into the ksh shell. Which of the following commands will
John run to accomplish the task?

You run the wc -c file1.txt command. If this command displays any error message, you want to
store the error message in the error.txt file. Which of the following commands will you use to
accomplish the task?