Question:

Answer: grep

Question: A technician attempts to run an executable file on a Linux computer and receives a Permission Denied message.

Which of the following command should the technician use?

Answer: chmod

Question: You’re using the vi editor to manage a text file on a Linux system. You want to type new text into the file. When you type, you want the existing text that comes after the cursor to be pushed down.

Which mode provides this function?

Answer: insert mode

Question: You’ve just opened a text file in the vi editor, and you’re in Command Mode by default. There is more then one way to get from Command Mode to Replace Mode.

Which of the following key-press sequences will get you into Replace Mode? (Select THREE)

Answer: Press i key and then press Insert

Press the S key and then press Insert

Press Insert and then press Insert again

Question: You need to see what kind of CPU is being used on a Linus system. The /proc directory contains a text file called cpuinfo that will give you the information you are looking for.

Which of the following commands will display the entire contents of the cpuinfo text file on the screen?

Answer: cat/proc/cpuinfo

Question:

Answer: less/var/log/auth.log

more /var/log/auth.log

Question:

Answer: su -