Once an attacker has compromised a Linux system, he/she may ‘cover their tracks’ to reduce the chances of detection.  What command might the attacker use in this regards?

The _____________ command creates a single file from many files.

What two commands were executed and in what order?

From the details in this screenshot, what is ‘nmap’ in the second line?

You can view all your default environmental variables by entering ________________ into your terminal from any directory.

In bash scripting, when we have an if-elif-else statement, what must we end the statement with?

This is an environment and interpreter for running commands in Linux.  Bash and ZSH are 2 of the most widely used in Linux. M2/Ch1

From the Module 1 handout on operating systems, we learned that only machine code runs on the CPU and that this code is not readable by humans.    However, __________________________ is more readable and humans can learn to program in this.    See the image from the handout.

“At 22:00 on every day-of-week from Monday through Friday.” How would this be represented in crontab?

What goes in the blanks?    (note:  it’s the same word in both blanks)   A ___________________ is a program with a unique purpose.  They are utility programs that run silently in the background to monitor and take care of certain subsystems to ensure that the operating system runs properly.  A printer ____________________ monitors and takes care of printing services, for example.