operating system set 2 Detailed Explanation And More Example

Question : 1

In aperiodic (real time) tasks

a) The dead line for start is mandatory, but for finish it is not.

b) The dead line for finish is mandatory, but for start it is not.

c) The dead line for finish and start is mandatory.

d) The dead line for finish and start is not mandatory.

Question : 2

The following is not true for master/slave architecture

a) A failure of master brings down the whole system

b) Operating system kernel runs on master processor only

c) Operating system kernel can run on any processor either master or slave.

d) All scheduling and process management is done on master processor.

Question : 3

The correct matching for the following pairs is - 

a) A-2, B-4, C-1, D-3

b) A-1, B-2, C-3, D-4

c) A-2, B-1, C-4, D-3

d) None of these

Question : 4

Match the following pairs A. Logical address (1) An actual location in main memory B. Relative address (2) An address is expressed as a location relative to some known point. C. Physical address (3) A memory location independent of the current assignment of data to

a) A - 3, B - 2, C - 1

b) A - 2, B - 1, C - 3

c) A - 3, B - 1, C - 2

d) A - 1, B - 2, C - 3

Question : 5

In shared memory multi processor

a) Computer communicate to each other by fixed paths

b) Computer communicates to each other via a shared memory.

c) Each processing element is a self contained computer.

d) None of these.

Question : 6

In round robin (time slicing) policy applied on uni-processor scheduling

a) When interrupt occurs, the currently running process is placed in ready queue, and next ready job is selected in First come First serve basis.

b) When interrupt occurs, the currently running process is placed in ready queue and next ready job is selected in random order.

c) No interruption is entertained.

d) None of these.