You work as a Network Administrator for Tech Perfect Inc. The company has a Linux-based
network. You are required to boot a server in single-user mode. Which of the following runlevels
will you choose to accomplish the task?

You work as a Network Administrator for Tech World Inc. The company has a Linux-based
network. The permissions on a file named Report are shown below:
rwxr–rYou want to add a sticky bit to the file. Which of the following commands will you use?

Alicia works as a System Administrator for SoftTech Inc. The company uses the Linux operating
system. She wants to install Apache on the company’s server. Which of the following commands
will she use to check whether or not Apache is already installed on the server?

Which of the following files must be edited to alter the run level?

Which of the following commands can be used to view the information about the transmitted or
received packets from a network interface?

Which of the following commands can be used to upgrade a package only if an earlier version of
that package is already installed? Each correct answer represents a complete solution. Choose all
that apply.

Which of the following statements are true about rsync? Each correct answer represents a
complete solution. Choose all that apply.

You work as a Network Administrator for Tech Perfect Inc. The company has a Linux-based
network. You want to kill a process running on a Linux server. Which of the following commands
will you use to know the process identification number (PID) of the process?