Introduction to Linux - Chapter 13

What umask value would you use in order for new directories to have the permissions of rwxr-x-x? 027 077 022 026

026

If a file has permissions that appear as rwxr-x—, what is the octal permission mode of the file? 760 650 750 740

750

The command, chmod a+x will: Remove execute permission for all users Add execute permissions for the user owner Remove execute permissions for the user owner Add execute permission for all users

Add execute permission for all users

For rwxr-x-x permission set, the bolded permissions belong to: The user owner and group owner of the file All users besides the user owner and group owner The user owner of the file The group owner of the file

All users besides the user owner and group owner

To switch to another group, you must: Be a member of the group that you are switching to Be logged in graphically Log off and log back in Log in as the staff user

Be a member of the group that you are switching to

The group ownership of a file may only be changed by: The owner of the file Any user can change the group ownership of any file The root user Both the root user and the owner of the file

Both the root user and the owner of the file

Assuming everyone has access to the directory the file is in, who can view the contents of a file with permissions of rw-r—-x? Nobody Both the user owner and group owners Only the user owner Everyone Only the group owners

Both the user owner and group owners

Using the setgid permission on a directory: Causes new files created in the directory to be owned by the group that owns the directory Causes the directory to be writable to members of the group that owns the directory Causes files existing in the directory to be made executable by the group Causes files existing in the directory to be owned by the group that owns the directory

Causes new files created in the directory to be owned by the group that owns the directory

The setuid permission on a file: Causes the file to always run as root Causes the file to never run as root Causes the file to run under the owner's identity Causes the file to run under the user's identity

Causes the file to run under the owner's identity

Which permission is necessary on a directory in order for a user to use the cd command to change that directory? Read None Execute Write

Execute

To run binary executables, you need both read and execute permission. True or False? True False

False

The command, chmod 2777 /data will: Make the /data directory a setgid directory Make the /data directory a sticky bit directory Make the /data directory a setuid directory Remove all special permissions

Make the /data directory a setgid directory

The command, chmod 1777 /data will: Make the /data directory a setuid directory Make the /data directory a sticky bit directory Remove all special permissions Make the /data directory a setgid directory

Make the /data directory a sticky bit directory

The command, chmod 0777 /data will: Make the /data directory a setuid directory Make the /data directory a setgid directory Make the /data directory a sticky bit directory Remove all special permissions

Remove all special permissions

The command, chmod u=g will: Set the group owners permissions to match the user owners permissions Set the user owners permissions to match the group owners permission Nothing, the command syntax is invalid Set the user owners permissions to rwx

Set the user owners permissions to match the group owners permission

For the rwxr-x-x permission set, the bolded permissions belong to: The group owner of the file All users besides the user owner and group owner The user owner and group owner of the file The user owner of the file

The group owner of the file

The only person who can change the user ownership of a file is: The root user The owner of the file Both the root user and owner of the file Any user can change the group ownership of any file

The root user

For the rwxr-x-x permission set, the bolded permissions belong to: All users besides the user owner and group owner The group owner of the file The user owner and group owner of the file The user owner of the file

The user owner of the file

The only user with the capability to change the owner of a file is root. True or False? True False

True

To access a directory with the cd command, you must also be able to access all the parent directories of the directory with the cd command. True or False? True False

True

To run a script file, you need both read and execute permission. True or False? True False

True

Which command will allow you to change the group ownership of a file that you own? regroup chgrp chown mask

chgrp

Which commands can be used to change the ownership of a file? (choose two) chggrp chgrp chown newgrp

chgrp , chown

Which command is used to change permissions on a file? chgmode chmod chgperm chperm

chmod

To have permissions set to rwxr-x-x, you can use the following command: chmod 751 chmod 755 chmod 777 file chmod 711

chmod 751

Which command can change the user owner of a file? chown own pawn chpawn

chown

Which command will allow you to switch to another group and add files that are group owned by this other group? chgrp switchgrp newgroup newgrp

newgrp

Which permission is used to make a directory so that only root, the owners of files or the owner of the directory can remove them? sticky bit setgid write setuid

setgid

Which command can be used to set what your default permissions will be on new files? umode umask mode mask

umaskv