Surprise

The United States Air Force was able to install Linux on a popular gaming console and then connect over 1,700 of these systems together to work as one big supercomputer. Which of the following types of technologies did they implement?

• Cloud computing
• Quantum computing
• Cluster computing
• Distributed computing

What type of cloud platforms would a webmail service offered to the general public be considered?

Under the root directory in Linux, which directory contains system commands and utilities?

What metacharacter can be used to issue two commands to be run in consecutive order, without piping or redirecting output?

• ||
• ;

• &

• ;;

What command can be issued to confirm which directory you are in at a command line prompt?

• dir
• pwd
• ls
• cd

Select the regular expression metacharacter that matches 0 or more occurrences of the previous character.

• ^
• +
• ?
• *

To display a text file in reverse order, what command should be used?

Jo has received a text file which contains multiple instances of his name spelled correctly as well as multiple instances spelled as Joe. Which of the following commands would search a text file for any occurrences of either spelling and display them out to the terminal? (Choose three.)

• grep “Joe?” document1.txt

• grep -E “Joe?” document1.txt

• grep “Joe*” document1.txt

• grep -E “Joe*” document1.txt

Which of the following commands can be used to update the last modified timestamp on a file, or if the file specified does not exist will create the file?

• update
• modify
• touch
• create

Which of the following commands will delete a directory and all of the files contained within it?

• rmdir -i directory_name

• rm -rf directory_name

• rmdir directory_name

• rm -d directory_name