JAWABAN NDG LINUX CHAPTER 13 - CHAPTER 14

NDG LINUX CHAPTER 13 - CHAPTER 14

CHAPTER 13



CORRECT - See section 13.3

Which files contain user account information?

• /etc/passwd
• /etc/shadow

CORRECT - See section 13.3.2

Which user can view the /etc/shadow file?

• The root user

CORRECT - See section 13.3.4

Which command will display the UID, GID and groups your current user belongs to?

• id

CORRECT - See section 13.1

Each user belongs to at least one group.

• True

CORRECT - See section 13.6

Which of the following commands will allow you to switch to the user, branch?

• su branch
• su -l branch
• su - branch

CORRECT - See section 13.7.1

The visudo command uses which text editor by default?

• vi

CORRECT - See section 13.4.1

The /etc/group file follows what structure?

• group_name:password_placeholder:GID:user_list

CORRECT - See section 13.7.1

In distributions that do not allow the root user to login directly or via the su command, the installation process automatically configures one user account to be able to use the sudo command to execute commands as if they were executed by the root user.

• True

CORRECT - See section 13.9

Which of the following commands will display how long the system has been running since the last boot?

• w
• uptime

CORRECT - See section 13.3.3

Which command can be used to view the /etc/passwd file entries?

• getent

CORRECT - See section 14.8.1

On a system that does not use UPG, the useradd command will also create a user group. For example, user bob, group bob.

• False

CHAPTER 14

CORRECT - See section 14.12.1

Which of the following commands will add the group extra to the user bob's secondary groups in addition to bob's current secondary groups?

• usermod -aG extra bob

CORRECT - See section 14.4

The groupmod command can be used to change a group name.

• True

WRONG - See section 14.4

The groupmod command can be used to change a group GID.

• False

CORRECT - See section 14.4

The groupmod command can be used to add users to a group.

• False

CORRECT - See section 13.3.4

Which of the following commands can be used to modify a group?

• groupmod

CORRECT - See section 14.7

Which of the following files contains encrypted user password information?

• /etc/shadow

WRONG - See section 14.8.2

Which of the following files contains user IDs?

• /etc/shadow

WRONG - See section 14.3

Which of the following files does the groupadd command use to determine the new GID when a GID isn't specified?

• /etc/shadow

CORRECT - See section 19.4

What directory contains user's home directories?

• /home

versi 2

UIDs 1-500 are usually reserved for what kind of users?

• System accounts, such as server processes

If a user is deleted, the files and directories that the user owned...

• ...will show a UID as the owner, but not user name.

Which of the following options for the useradd command allows root to specify the UID to be associated with the account?

• -u

On a system that does not use UPG, the useradd command will also create a user group. For example, user bob, group bob.

• False

The usermod command can be used to do all of the following except...

• ...change the user's MAX and MIN password settings.

For non-root users, the passwd command can only be used to change the password of the user running the command.

• True

The groupmod command can be used to change a group name.

• True

Which of the following files does the groupadd command use to determine the new GID when a GID isn't specified?

• /etc/shadow

Which of the following commands, run as root, will prevent the user bob from logging in?

• usermod -L bob

What directory contains user's home directories?

• /home