BSIT 3201 Quiz 3 - Permissions

A file has permissions set to 700. What is the most logical reason an administrator would use this setting?

• To allow team-wide collaboration on the file

• To prevent the file from being read or executed by anyone else

• To make it accessible only to users in the same group

• To allow anonymous access for testing

You are asked to restrict all users except the file owner from accessing a file. Which chmod octal value is most appropriate?

• 755

• 644

• 700

• 666

What will the result of the command chmod go=rw filename be?

• Gives only the owner read and write permissions

• Removes all permissions from group and others

• Assigns read and write permissions to group and others only

• Grants all users full access

Why is 777 considered an insecure permission for files or directories?

• It restricts access to users only

• It allows all users to execute sudo

• It removes all write permissions

• It allows unrestricted read, write, and execute to anyone

You used the command chmod u+x,go=rx filename. What is the most accurate interpretation?

• Only the owner can read the file

• The group and others can execute but not read

• Owner can execute, group and others can read and execute

• Owner has no permissions; others have read and write

Which of the following best explains the consequence of setting a directory to chmod 755?

• Only the owner can list and modify the directory

• Everyone can delete and write in the directory

• Others can list the directory contents but not modify it

• Group users can only delete files

After creating a new user, which command should you run to check if the user's group is correctly assigned?

• passwd

• su

• chgrp

• id

If umask is set to 0022, what is the default permission for a newly created file?

• rw-r--r--

• rw-rw-rw-

• r--r--r--

• rwxr-xr-x

Which of the following permission notations will allow a script file to be executed by everyone but only modified by the owner?

• 777

• 700

• 755

• 644

Why would a system administrator prefer to use sudo instead of su when performing administrative tasks?

• sudo creates a new user session

• sudo temporarily elevates privileges without logging in as root

• sudo sets the umask automatically

• sudo modifies user groups