Operating System MCQs

Question 1

In which of the storage placement strategies a program is placed in the largest available hole in the main memory?

Accepted Answer

worst fit

Answer

best fit

Answer

first fit

Answer

buddy

Question 2

Which of the following is a block device

Accepted Answer

disk

Answer

mouse

Answer

printer

Answer

terminals

Question 3

The problem of thrashing is affected significantly by:

Accepted Answer

program structure

Answer

program size

Answer

primary-storage size

Answer

all of the above

Question 4

Which of the following software types is used to simplify using systems software?

Accepted Answer

timesharing

Answer

spreadsheet

Answer

operating environment

Answer

multitasking

Question 5

Advantage(s) of using assembly language rather than machine language is (are):

Accepted Answer

all of the above

Answer

It is mnemonic and easy to read.

Answer

Addresses any symbolic, not absolute

Answer

Introduction of data to program is easier

Question 6

Which of the following is not true about the memory management?

Accepted Answer

virtual memory is used only in multi-user systems

Answer

segmentation suffers from external fragmentation

Answer

paging suffers from internal fragmentation

Answer

segmented memory can be paged

Question 7

Job Control Language (JCL) statements are used to

Accepted Answer

Specify, to the operating system, the beginning and end of a job in a batch

Answer

Read the input from the slow-speed card reader to the high-speed magnetic disk

Answer

Allocate the CPU to a job

Answer

All of the above

Question 8

Paging

Accepted Answer

is a method of memory allocation by which the program is subdivided into equal portions, or pages and core is subdivided into equal portions or blocks.

Answer

consists of those addresses that may be generated by a processor during execution of a computation.

Answer

is a method of allocating processor time.

Answer

allows multiple programs to reside in separate areas of core at the time.

Question 9

Which of the following is not true about documentation?

Accepted Answer

Documentation increases the maintenance time and cost

Answer

Documentation, of a system, should be as clear and direct as possible

Answer

Documentation gives better understanding of the problem

Answer

All of the above