Universe consists of _____________

• A. All users that aren’t included in the group or owners
• B. All users that are not owners
• C. All users in the system
• D. None of the mentioned

In UNIX, groups can be created and modified by?

• A. Superuser
• B. Any user
• C. A programmer only
• D. The people in the group only

To control access the three bits used in UNIX are represented by _____________

• A. R
• B. W
• C. X
• D. All of the mentioned

If each access to a file is controlled by a password, then what is the disadvantage?

• A. User will need to remember a lot of passwords
• B. It is not reliable
• C. It is not efficient
• D. All of the mentioned

What will happen in a multi level directory structure?

• A. The same previous techniques will be used as in the other structures
• B. A mechanism for directory protection will have to applied
• C. The subdirectories do not need protection once the directory is protected
• D. None of the mentioned

In UNIX, the directory protection is handled _________ to the file protection.

• A. Different
• B. Similar
• C. It is not handled at all
• D. None of the mentioned

Disks are segmented into one or more partitions, each containing a file system or ______

• A. Left €?raw’
• B. Made into swap space
• C. Made into backup space
• D. Left €?ripe’

Which of the following provides a buffer between the user and the low-level interfaces to the hardware?

• A. Operating system
• B. Kernel
• C. Software
• D. Hardware

Which of the following enables the user to utilise the system efficiently?

• A. Kernel
• B. Operating system
• C. Software
• D. Hardware

Which of the following can make the application program hardware independent?

• A. Software
• B. Application manager
• C. Operating system
• D. Kernel