operating system Practice Questions Answers Test with Solutions & More Shortcuts

Question : 41

Which combination of the following features will suffice to characterize an OS as a multi programmed OS ? (i) More than one program may be loaded into main memory at the same time for execution. (ii) If a program waits for certain events such as I/O, another program is immediately scheduled for execution. (iii) If the execution of a program terminates, another program is immediately scheduled for execution.

a) (i) only

b) (ii) and (iii)

c) (i) and (iii)

d) (i), (ii) and (iii).

Question : 42

The main memory of the computer

a) Controls the operations of computer.

b) Performs data processing functions.

c) Stores data and programs.

d) None of these.

Question : 43

• Statement A:
• The placement policy determines where in real memory a process piece is to reside.
• Statement B:
• The fetch policy determines when a page should be bought into main memory.

a) A and B both true

b) A and B both false

c) A is true, B is false

d) A is false, B is true

Question : 44

The trace of the process is

a) A set of instructions that execute process

b) A listing of sequence of instructions that execute process

c) A track of network

d) None of these.

Question : 45

The allocation map

a) is used to store program data

b) specifies which blocks are used by which file

c) is updated by applications programs

d) allows programs to erase files