154 + Mcqs in General McqOptions

1.	In fixed sized partition, the degree of multiprogramming is bounded by ___________.
A.	the number of partitions
B.	the CPU utilization
C.	the memory size
D.	All of these
Answer» B. the CPU utilization

Discussion

2.	When memory is divided into several fixed sized partitions, each partition may contain ________.
A.	exactly one process
B.	atleast one process
C.	multiple processes at once
D.	None of these
Answer» B. atleast one process

Discussion

3.	External fragmentation will not occur when :
A.	first fit is used
B.	best fit is used
C.	worst fit is used
D.	no matter which algorithm is used, it will always occur
Answer» E.

Discussion

4.	External fragmentation exists when :
A.	enough total memory exists to satisfy a request but it is not contiguous
B.	the total memory is insufficient to satisfy a request
C.	a request cannot be satisfied even when the total memory is free
D.	None of these
Answer» B. the total memory is insufficient to satisfy a request

Discussion

5.	The disadvantage of moving all process to one end of memory and all holes to the other direction, producing one large hole of available memory is :
A.	the cost incurred
B.	the memory used
C.	the CPU used
D.	All of these
Answer» B. the memory used

Discussion

6.	__________ is generally faster than _________ and _________.
A.	first fit, best fit, worst fit
B.	best fit, first fit, worst fit
C.	worst fit, best fit, first fit
D.	None of these
Answer» B. best fit, first fit, worst fit

Discussion

7.	Another solution to the problem of external fragmentation problem is to :
A.	permit the logical address space of a process to be noncontiguous
B.	permit smaller processes to be allocated memory at last
C.	permit larger processes to be allocated memory at last
D.	All of these
Answer» B. permit smaller processes to be allocated memory at last

Discussion

8.	If relocation is static and is done at assembly or load time, compaction _________.
A.	cannot be done
B.	must be done
C.	must not be done
D.	can be done
Answer» B. must be done

Discussion

9.	A solution to the problem of external fragmentation is :
A.	compaction
B.	larger memory space
C.	smaller memory space
D.	None of these
Answer» B. larger memory space

Discussion

10.	In internal fragmentation, memory is internal to a partition and :
A.	is being used
B.	is not being used
C.	is always used
D.	None of these
Answer» C. is always used

Discussion

11.	A multilevel page table is preferred in comparison to a single level page table for translating virtual address to physical address because :
A.	it reduces the memory access time to read or write a memory location
B.	it helps to reduce the size of page table needed to implement the virtual address space of a process
C.	it is required by the translation look aside buffer
D.	it helps to reduce the number of page faults in page replacement algorithms
Answer» C. it is required by the translation look aside buffer

Discussion

12.	The segment base contains the :
A.	starting logical address of the process
B.	starting physical address of the segment in memory
C.	segment length
D.	none of the mentioned
Answer» C. segment length

Discussion

13.	If there are 32 segments, each of size 1Kb, then the logical address should have :
A.	13 bits
B.	14 bits
C.	15 bits
D.	16 bits
Answer» B. 14 bits

Discussion

14.	The protection bit is 0/1 based on :
A.	write only
B.	read only
C.	read write
D.	none of the mentioned
Answer» D. none of the mentioned

Discussion

15.	If the offset is legal :
A.	it is used as a physical memory address itself
B.	it is subtracted from the segment base to produce the physical memory address
C.	it is added to the segment base to produce the physical memory address
D.	none of the mentioned
Answer» B. it is subtracted from the segment base to produce the physical memory address

Discussion

16.	When the entries in the segment tables of two different processes point to the same physical location :
A.	the segments are invalid
B.	the processes get blocked
C.	segments are shared
D.	all of the mentioned
Answer» D. all of the mentioned

Discussion

17.	The segment limit contains the :
A.	starting logical address of the process
B.	starting physical address of the segment in memory
C.	segment length
D.	none of the mentioned
Answer» D. none of the mentioned

Discussion

18.	The offset d of the logical address must be :
A.	greater than segment limit
B.	between 0 and segment limit
C.	between 0 and the segment number
D.	greater than the segment number
Answer» C. between 0 and the segment number

Discussion

19.	Consider a computer with 8 Mbytes of main memory and a 128 K cache. The cache block size is 4 K. It uses a direct mapping scheme for cache management. How many different main memory blocks can map onto a given physical cache block ?
A.	2048
B.	256
C.	64
D.	8
Answer» D. 8

Discussion

20.	Each entry in a segment table has a :
A.	segment base
B.	segment peak
C.	segment value
D.	none of the mentioned
Answer» B. segment peak

Discussion

21.	A memory buffer used to accommodate a speed differential is called:
A.	stack pointer
B.	cache
C.	accumulator
D.	disk buffer
Answer» C. accumulator

Discussion

22.	CPU fetches the instruction from memory according to the value of:
A.	program counter
B.	status register
C.	instruction register
D.	program status word
Answer» B. status register

Discussion

23.	When divisions of decimals are involved in program, these numbers are stored in
A.	real numbers
B.	rational numbers
C.	original numbers
D.	irrational numbers
Answer» B. rational numbers

Discussion

24.	Whole numbers from '0' and all negative numbers are classified as
A.	integers
B.	real numbers
C.	prime numbers
D.	composite numbers
Answer» B. real numbers

Discussion

25.	Function which is used in stepwise refinement of program is classified
A.	procedure
B.	library format
C.	routine format
D.	subroutine format
Answer» B. library format

Discussion

26.	Data types are differed on basis of
A.	way of storage
B.	type of operations
C.	both (a) and (b)
D.	type of operators used
Answer» D. type of operators used

Discussion

27.	Statement "130 num(subs) = 2*subs-1" is an example of
A.	array in BASIC
B.	array in PASCAL
C.	array in COMAL
D.	array in COBOL
Answer» B. array in PASCAL

Discussion

28.	In high-level language COMAL, area is calculated as
A.	Area: = Width*Length
B.	100 Area = Width*Length
C.	100 Area: = Width*Length
D.	length 100: area*20width
Answer» D. length 100: area*20width

Discussion

29.	In line "110 DIM num(10)" in BASIC language, 'Line 110' declares
A.	one-dimensional array
B.	two-dimensional array
C.	three-dimension array
D.	multi-dimension array
Answer» B. two-dimensional array

Discussion

30.	To obtain better memory utilization, dynamic loading is used. With dynamic loading, a routine is not loaded until it is called. For implementing dynamic loading,
A.	special support from hardware is required
B.	special support from operating system is essential
C.	special support from both hardware and operating system is essential
D.	user programs can implement dynamic loading without any special support from hardware or operating system
Answer» E.

Discussion

31.	In a paged memory, the page hit ratio is 0.35. The required to access a page in secondary memory is equal to 100 ns. The time required to access a page in primary memory is 10 ns. The average time required to access a page is :
A.	3.0 ns
B.	68.0 ns
C.	68.5 ns
D.	78.5 ns
Answer» D. 78.5 ns

Discussion

32.	When there is a large logical address space, the best way of paging would be :
A.	not to page
B.	a two level paging algorithm
C.	the page table itself
D.	all of the mentioned
Answer» C. the page table itself

Discussion

33.	Illegal addresses are trapped using the _____ bit.
A.	error
B.	protection
C.	valid invalid
D.	access
Answer» D. access

Discussion

34.	When the valid invalid bit is set to valid, it means that the associated page :
A.	is in the TLB
B.	has data in it
C.	is in the process s logical address space
D.	is the system s physical address space
Answer» D. is the system s physical address space

Discussion

35.	Memory protection in a paged environment is accomplished by :
A.	protection algorithm with each page
B.	restricted access rights to users
C.	restriction on page visibility
D.	protection bit with each page
Answer» E.

Discussion

36.	The percentage of times a page number is found in the TLB is known as :
A.	miss ratio
B.	hit ratio
C.	miss percent
D.	None of the mentioned
Answer» C. miss percent

Discussion

37.	In high-level language Pascal, area is calculated as
A.	Area: = Width*Length;
B.	length 100: area*20width
C.	100 Area = Width*Length
D.	100 Area = Width*Length
Answer» B. length 100: area*20width

Discussion

38.	In line "550 INPUT NUM: PRINT 6.9NUMNUM+27" of a BASIC program, 'PRINT and INPUT' is
A.	reserved words
B.	reserved variable
C.	reserved constant
D.	reserved exponent
Answer» B. reserved variable

Discussion

39.	In line "100 INPUT NUM" of a BASIC program, NUM is if chosen by programmer is classified as
A.	identifier
B.	exponents
C.	real constants
D.	reserved variable
Answer» B. exponents

Discussion

40.	A special quantity named in a program and its value can be changed is called
A.	variables
B.	constant
C.	mantissa
D.	exponent
Answer» B. constant

Discussion

41.	Loop statement which is repeated to some given number of times is classified as
A.	GO loop
B.	FOR loop
C.	REPEAT loop
D.	GO REPEAT loop
Answer» C. REPEAT loop

Discussion

42.	Set of data whose items are organized together is classified as
A.	data structure
B.	string structure
C.	positive structure
D.	variable structure
Answer» B. string structure

Discussion

43.	Comments used to make program easier are also called as
A.	narrative
B.	unmarked stringe
C.	marked variable
D.	unmarked variable
Answer» B. unmarked stringe

Discussion

44.	An assembler translates
A.	routine into subroutine
B.	processing time into manual time
C.	assembly code into machine code
D.	machine code into assembly code
Answer» D. machine code into assembly code

Discussion

45.	Name given by a programmer to some data is classified as
A.	mantissa
B.	identifier
C.	exponent
D.	identification
Answer» C. exponent

Discussion

46.	Functions used in programs that are defined by programmers are called
A.	built-in functions
B.	program layout
C.	program procedure
D.	user-defined function
Answer» E.

Discussion

47.	A program which interprets each line of high level program at time of execution is called
A.	executor
B.	instructor
C.	translator
D.	interpreter
Answer» E.

Discussion

48.	In COMAL language programs, variables in program procedure are declared local using
A.	START function
B.	OPEN function
C.	END function
D.	CLOSED function
Answer» E.

Discussion

49.	An instruction which tells assembler how to deal with whole program is classified as
A.	director
B.	directive
C.	compiler
D.	direction
Answer» C. compiler

Discussion

50.	In statement 110 IF Num = INT(Num) THEN PRINT "Whole number' "of BASIC language, built-in function is
A.	IF
B.	INT
C.	Num
D.	PRINT
Answer» C. Num

Discussion

Explore topic-wise MCQs in Testing Subject.

In fixed sized partition, the degree of multiprogramming is bounded by ___________.

When memory is divided into several fixed sized partitions, each partition may contain ________.

External fragmentation will not occur when :

External fragmentation exists when :

The disadvantage of moving all process to one end of memory and all holes to the other direction, producing one large hole of available memory is :

__________ is generally faster than _________ and _________.

Another solution to the problem of external fragmentation problem is to :

If relocation is static and is done at assembly or load time, compaction _________.

A solution to the problem of external fragmentation is :

In internal fragmentation, memory is internal to a partition and :

A multilevel page table is preferred in comparison to a single level page table for translating virtual address to physical address because :

The segment base contains the :

If there are 32 segments, each of size 1Kb, then the logical address should have :

The protection bit is 0/1 based on :

If the offset is legal :

When the entries in the segment tables of two different processes point to the same physical location :

The segment limit contains the :

The offset d of the logical address must be :

Consider a computer with 8 Mbytes of main memory and a 128 K cache. The cache block size is 4 K. It uses a direct mapping scheme for cache management. How many different main memory blocks can map onto a given physical cache block ?

Each entry in a segment table has a :

A memory buffer used to accommodate a speed differential is called:

CPU fetches the instruction from memory according to the value of:

When divisions of decimals are involved in program, these numbers are stored in

Whole numbers from '0' and all negative numbers are classified as

Function which is used in stepwise refinement of program is classified

Data types are differed on basis of

Statement "130 num(subs) = 2*subs-1" is an example of

In high-level language COMAL, area is calculated as

In line "110 DIM num(10)" in BASIC language, 'Line 110' declares

To obtain better memory utilization, dynamic loading is used. With dynamic loading, a routine is not loaded until it is called. For implementing dynamic loading,

In a paged memory, the page hit ratio is 0.35. The required to access a page in secondary memory is equal to 100 ns. The time required to access a page in primary memory is 10 ns. The average time required to access a page is :

When there is a large logical address space, the best way of paging would be :

Illegal addresses are trapped using the _____ bit.

When the valid invalid bit is set to valid, it means that the associated page :

Memory protection in a paged environment is accomplished by :

The percentage of times a page number is found in the TLB is known as :

In high-level language Pascal, area is calculated as

In line "550 INPUT NUM: PRINT 6.9*NUM*NUM+27" of a BASIC program, 'PRINT and INPUT' is

In line "100 INPUT NUM" of a BASIC program, NUM is if chosen by programmer is classified as

A special quantity named in a program and its value can be changed is called

Loop statement which is repeated to some given number of times is classified as

Set of data whose items are organized together is classified as

Comments used to make program easier are also called as

An assembler translates

Name given by a programmer to some data is classified as

Functions used in programs that are defined by programmers are called

A program which interprets each line of high level program at time of execution is called

In COMAL language programs, variables in program procedure are declared local using

An instruction which tells assembler how to deal with whole program is classified as

In statement 110 IF Num = INT(Num) THEN PRINT "Whole number' "of BASIC language, built-in function is

______ is generally faster than _ and _____.

In line "550 INPUT NUM: PRINT 6.9NUMNUM+27" of a BASIC program, 'PRINT and INPUT' is