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

All users in a group get _______ access to a file.

A. Different
B. Similar
C. Same
D. None of the mentioned

Many systems recognize three classifications of users in connection with each file (to condense the access control list).

A. Owner
B. Group
C. Universe
D. All of the mentioned

What is the main problem with access control lists?

A. Their maintenance
B. Their length
C. Their permissions
D. All of the mentioned

Protection is only provided at the _____ level.

A. Lower
B. Central
C. Higher
D. None of the mentioned

Reliability of files can be increased by _____________

A. Keeping the files safely in the memory
B. Making a different partition for the files
C. By keeping them in external storage
D. By keeping duplicate copies of the file

Thread synchronization is required because ___________

A. All threads of a process share the same address space
B. All threads of a process share the same global variables
C. All threads of a process can share the same files
D. All of the mentioned

The register context and stacks of a thread are deallocated when the thread?

A. Terminates
B. Blocks
C. Unblocks
D. Spawns

Which one of the following is not a valid state of a thread?

A. Running
B. Parsing
C. Ready
D. Blocked

Termination of the process terminates ___________

A. First thread of the process
B. First two threads of the process
C. All threads within the process
D. No thread within the process