Which of the following answers are true for cloud computing? (Choose TWO correct answers.)

A. Cloud Computing provides new tools to manage IT resources.

B. From the business perspective, Cloud Computing means outsourcing or centralization of IT operations.

C. Cloud Computing is the opposite of green IT; i.e. the use of fossil, non-regenerative energy for computing.

D. Cloud Computing implies sharing all information with everyone else in 'the cloud'.

Which of the following commands can be used to create a file?

A. touch

B. build

C. nico

D. create

E. mkfile

Which of the following commands increases the number of elements in a directory? (Choose TWO answers)

A. touch newfile

B. create newfile

C. ls newfile

D. rmdir newdirectory

E. mkdir newdirectory

Which of the following commands can be used to extract files from an archive?

A. tar -vf

B. tar -xvf

C. tar -evf

D. tar -e

E. tar v

Which of the following commands will output all of the lines that contain either the string Fred or fred? (Choose TWO correct answers.)

A. grep -v fred data_file

B. grep '[f]red' data_file

C. egrep fred data_file

D. grep '[Ff]red' data_file

E. grep -i fred data_file

Which of the following commands will create an archive file, named backup.tar, containing all the files from the directory /home?

A. tar /home backup.tar

B. tar -cf /home backup.tar

C. tar -xf /home backup.tar

D. tar -xf backup.tar /home

E. tar -cf backup.tar /home

Which of the following commands can be used to extract content from a tar file?

A. tar -xvf

B. tar -vf

C. tar -e

D. tar -c

E. tar v

Which of the following filesystems is most commonly used for Linux distributions?

A. HFS+

B. ext4

C. FAT32

D. NTFS

Which of the following commands can be used to determine the time of the last login of a given user?

A. showlog

B. recent

C. last

D. history

E. login

You have a program called /usr/bin/foo. You wish to create a symbolic link, /home/user/foo, that points to it. Which command will do this task?

A. ln -sym /home/user/foo /usr/bin/foo

B. ln -s /usr/bin/foo /home/user/foo

C. ln /home/user/foo /usr/bin/foo

D. ln /usr/bin/foo /home/user/foo

E. ln --symlink /home/user/foo /usr/bin/foo