Operating System MCQ
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Operating System Basics
Processes and Threads
Inter-Process Communication
Concurrency and Synchronization
Deadlock and CPU Scheduling
Memory Management and Virtual Memory
File Systems and I/O Systems
Protection and Security


 
123456
 
A major security problem for operating system is

 A. Authentication problem
 B. Physical problem
 C.  Human problem
 D.  None of these

Submitted  By
Payal Preet
     Answer   _____________________________________________________________________________________
In one time password

 A. The password is different in each instance
 B. The password is same in each instance
 C.  Both A and B
 D.  None of these

Submitted  By
Payal Preet
     Answer   _____________________________________________________________________________________
An audit log

 A. Simply records the time
 B. User
 C.  Type of all access to an object
 D.  All of these

Submitted  By
Payal Preet
     Answer   _____________________________________________________________________________________
To protect system,there are how many security levels?

 A. One
 B. Two
 C.  Three
 D.  Four

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Payal Preet
     Answer   _____________________________________________________________________________________
Global locks

 A. Synchronize access to local resources
 B. Synchronize access to global resources
 C.  Are used to avoid local locks
 D.  Prevent access to global resources

Submitted  By
Payal Preet
     Answer   _____________________________________________________________________________________
123456