Operating System(Computer Aptitude ) Questions and answers for exam Preparation

Computer Aptitude

OPERATING SYSTEM MCQs

Total Questions : 622 | Page 53 of 63 pages

Question 521. Which of the following is not true about the memory management?

virtual memory is used only in multi-user systems
segmentation suffers from external fragmentation
paging suffers from internal fragmentation
segmented memory can be paged
None of the above

Discuss Question

Answer: Option A. -> virtual memory is used only in multi-user systems

Question 522. Which of the following is not true about documentation?

Documentation, of a system, should be as clear and direct as possible
Documentation increases the maintenance time and cost
Documentation gives better understanding of the problem
All of the above
None of the above

Discuss Question

Answer: Option B. -> Documentation increases the maintenance time and cost

Question 523. Paging

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.
consists of those addresses that may be generated by a processor during execution of a computation.
is a method of allocating processor time.
allows multiple programs to reside in separate areas of core at the time.
None of the above

Discuss Question

Answer: Option A. -> 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.

Question 524. The system/370 assembler language

allows the programmer to write base registers and displacements explicitly in the source program.
is used to remember which of the general-purpose registers are currently available as base registers, and what base addresses they contain.
allows multiple programs to reside in separate areas of core at the same time.
is a term that refers to the control programs of an operating system.
None of the above

Discuss Question

Answer: Option A. -> allows the programmer to write base registers and displacements explicitly in the source program.

Question 525. Scheduling is