1000+ OS MCQ Questions and Answers Pdf - 1

Question: 1

Capacity planning

(A) is not needed in small installation

(B) does not depend on the monitoring tools available

(C) is independent of the operating system

(D) requires detailed system performance information

Question: 2

Seek analysis

(A) is only shown on real time displays

(B) is used for analysing control unit busy problems

(C) is used for analysing device busy problems

(D) is used for analysing paging problems

Question: 3

All the time a computer is switched on, its operating system software has to stay in

(A) disk drive

(B) floppy disk

(C) primary storage

(D) main storage

Question: 4

The Instruction register

(A) contains a copy of the designated memory location specified by the MAR after a ‘read’ or the new content of the memory prior to a ‘write’.

(B) contains the address of the memory location that is to be read from or stored into

(C) is a hardware memory device which denotes the location of the current instruction being executed

(D) is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory

Question: 5

A processor

(A) is typically characterised by interactive processing and time of the CPU’s time to allow quick response to each user

(B) is a sequence of instructions

(C) is the device where information is stored

(D) is a device that performs a sequence of operations specified by instructions in memory