John works as a Network Administrator for Perfect Solutions Inc. The company has a Linux-based
network. John is working as the root user on the Linux operating system. He wants to delete all
files whose names end with a number. Which of the following commands will John use to
accomplish the task?

Which of the following commands look through the currently running processes, and list the
process IDs that match the selection criteria to stdout?
Each correct answer represents a complete solution. Choose all that apply.

Which of the following operators is used to connect the output of one command to the input of
another command?

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. You want to run two
programs, foo and bar. You also want to ensure that bar is executed if and only if foo has
executed successfully. Which of the following command sequences will John use to accomplish
the task?

You work as the Network Administrator for Perfect Solutions Inc. The company has a Linux-based
network. You are a root user on the Red Hat operating system. You want to view all files with a
size of over 50 megabytes on your system. Which of the following commands should you use to
accomplish the task?

You are working with the vi editor and writing a textfile. Which of the following commands will you
use if you want to move the cursor 3 characters to the right?

Which of the following information does the /etc/passwd file contain? Each correct answer
represents a complete solution. Choose all that apply.

You have made a program secure.c to display which ports are open and what types of services
are running on these ports. You want to write the program’s output to standard output and
simultaneously copy it into a specified file. Which of the following commands will you use to
accomplish the task?

You work as the Network Administrator for McNeil Inc. The company has a Linux-based network.
You are a root user on the Red Hat operating system. You want view all files on the system that
have the .xml filename extension. Which of the following commands should you use to accomplish
the task?

You work as a Network Administrator for Maverick Inc. The company has a Linux-based network.
You are working on a Linux computer. You want to see the environment variables that are set on
your computer. Which of the following commands will you use?