operating system Practice Questions Answers Test with Solutions & More Shortcuts

Question : 31

Multiprogramming systems

a) are easier to develop than single programming systems

b) execute each job faster

c) execute more jobs in the same time period

d) are used only one large mainframe computers

Question : 32

In defining page table structure in virtual memory, A page number portion of a virtual address is mapped into a hash table using simple hash function, where hash table contains a pointer to the inverted page table, which contains page table entries, this approach is referred as

a) One page table per process structure.

b) Two level page table structure.

c) Inverted page table structure.

d) None of these.

Question : 33

A critical section is a program segment

a) which should run in a certain specified amount of time

b) which avoids deadlocks

c) where shared resources are accessed

d) which must be enclosed by a pair of semaphore operations.

Question : 34

The resident set of process is

a) A process that are actually in main memory at anytime.

b) A process that are actually in virtual memory at any time.

c) A process that are actually in disk.

d) None of these.

Question : 35

In file management, the primary interface of computer system with external environment is done through

a) Device drivers

b) Basic file system

c) Basic I/O supervisor

d) Logical I/O.