4.5 - 4.7 Review - Missed Questions

Which of the following commands is used to change the current group ID during a login session?

• groupmod

• groups

• usermod

• newgrp

One of your users, Karen Scott, has recently married and is now Karen Jones. She has requested that her username be changed from kscott to kjones with no other values changed. Which of the following commands would accomplish this?

• usermod -l kscott kjones

• usermod -l kjones kscott

• usermod -u kscott kjones

• usermod -u kjones kscott

Which of the following commands would you use to view the current soft limits on a Linux machine?

• ulimit -u

• ulimit -n

• ulimit -a

• ulimit -c

What is the effect of the following command? chage -M 60 -W 10 jsmith

• Forces jsmith to keep the password for 60 days before changing it while also giving a warning 10 days before expiration.

• Deletes the jsmith user account after 60 days and gives a warning 10 days before expiration.

• Sets the password for jsmith to expire after 60 days and sets a minimum of 10 days before a user can change the password again.

• Sets the password for jsmith to expire after 60 days and gives a warning 10 days before expiration.

• Sets the password for jsmith to expire after 10 days and gives a warning 60 days before expiration.

You are the administrator for a small company, and you need to add a standard new group of users to the system. The group's name is sales. Which command accomplishes this task?

• addgroup sales

• addgroup --system sales

• groupadd -r sales

• groupadd sales

You are a system administrator and you notice that a particular user's processes are consuming an unusually high amount of system resources, causing performance issues for other users. You decide to use the ulimit command to limit the resources available to this user's processes. Which of the following options would be the MOST effective solution and why?

• Use the -n option to limit the maximum number of files that the user can open.

• Use the -t option to limit the amount of CPU time a process can use.

• Use the -u option to limit the number of concurrent processes the user can run.

• Use the -f option to limit the file size of files created using the shell session.

Which of the following commands removes a user from all secondary group memberships?

• usermod -G

• usermod -G ""

• usermod -aG

• usermod -g

An employee named Bob Smith, whose username is bsmith, has left the company. You have been instructed to delete his user account and home directory. Which of the following commands would produce the required outcome? (Select two.)

• userdel -r bsmith

• userdel -Z bsmith

• userdel -h bsmith

• userdel bsmith

• userdel bsmith;rm -rf /home/bsmith

Which of the following chage option keeps a user from changing their password every two weeks?

• -W 33

• -m 33

• -M 33

• -a 33

What is the definition of 'Software attacks'?

• Deliberately induces malfunctions in a card.

• Exploits vulnerabilities in a card's protocols or encryption methods.

• Captures transmission data produced by a card as it is used.

• Accesses the chip's surface directly to observe, manipulate, and interfere with a circuit.