Operating System Mock Test 3

1. A system has 12 magnetic tape drives and 3 processes : P0, P1, and P2. Process P0 requires 10 tape drives, P1 requires 4 and P2 requires 9 tape drives.

Process    
P0            
P1                             
P2                             

Maximum needs (process-wise: P0 through P2 top to bottom)    
10             
4   
9

Currently allocated (process-wise)
5
2
2

Which of the following sequence is a safe sequence?

2. The ________ consists of all processes whose memory images are in the backing store or in memory and are ready to run.

3. The data structures available in the Banker's algorithm are ____________

4. An ______ uniquely identifies processes and is used to provide address space protection for that process.

5. When the valid - invalid bit is set to valid, it means that the associated page ____________

6. A system has 3 processes sharing 4 resources. If each process needs a maximum of 2 units then, deadlock ____________

7. Illegal addresses are trapped using the _____ bit.

8. If execution time binding is being used, then a process ______ be swapped to a different memory space.

9. In a system that does not support swapping ____________

10. When the memory allocated to a process is slightly larger than the process, then ____________