Operating System Multiple choice Questions and Answers-Introduction to Operating Systems

501.	Virtual memory is often described as hierarchy of
a.	Two storage systems
b.	Three storage systems
c.	Four storage systems
d.	Five storage systems

Discuss

Answer: (a).Two storage systems

502.	High rate of page-fault for a process results in
a.	Low performance
b.	High performance
c.	High cost
d.	Low cost

Discuss

Answer: (a).Low performance

503.	Limiting powers of conventional memory management schemes suffers by
a.	Two limitations
b.	Three limitations
c.	Four limitations
d.	Five limitations

Discuss

Answer: (a).Two limitations

504.	___________ acts as an intermediary between the computer user and the computer hardware
a.	Software
b.	Mainframe
c.	ROM
d.	Operating System

Discuss

Answer: (d).Operating System

505.	Software may trigger an interrupt by executing a special operation called a
a.	Recovery call
b.	System call
c.	Process call
d.	Package call

Discuss

Answer: (b).System call

Discuss

Answer: (a).Monitor call

507.	General-purpose computers run most of their programs from rewritable memory, called
a.	Main memory
b.	Secondary memory
c.	Peripheral memory
d.	Primary memory

Discuss

Answer: (a).Main memory

508.	Main memory commonly is implemented in a semiconductor technology called
a.	MRAM
b.	SDRAM
c.	DRAM
d.	PRAM

Discuss

Answer: (c).DRAM

509.	Jobs are kept initially on the disk in the
a.	Schedule pool
b.	Process pool
c.	System pool
d.	Job pool

Discuss

Answer: (d).Job pool

510.	There are two types of separate mode of operation in OS, ______ mode and ________ mode
a.	process, kernel
b.	system, process
c.	user, kernel
d.	user, system

Discuss

Answer: (c).user, kernel