operating system set 4 Detailed Explanation And More Example

Question : 1

• Statement A:
• In memory management, the replacement policy deals with the selection of pages in memory to be replaced by an arrived new page.
• Statement B:
• In memory management, the policy the fetch policy determines when a page should be bought into main memory.

a) A and B both false

b) A and B both true

c) A is true, B is false

d) A is false, B is true

Question : 2

Which structure prohibits the sharing of files and directories

a) tree structure

b) one level structure

c) two level structure

d) none of these

Question : 3

Moving process from main memory to disk is called

a) Scheduling

b) Cache

c) Swapping

d) Spooling

Question : 4

Following is not the state of Five-State process model

a) Ready

b) Running

c) Not Running

d) New.

Question : 5

Complex scheduling algorithms

a) use more resources than they gain

b) recover more resources than they use

c) always use many resources

d) are most appropriate for very large computers

Question : 6

In uni-processor management processor through put

a) Is a measure of how much work is being performed

b) Is the percentage of time that the processor is busy

c) Is a time interval between the submission of a process and its completion

d) None of these