a memory location whose value cannot change while the program is running

a memory location whose value can change while the program is running

a memory location whose value cannot change while the program is running

A do-while loop contains

no statement at all between the do statement and the while statement

only one statement between the do statement and the while statement

several statements between the do statement and the while statement

no statement at all between the do statement and the while statement

only two statement between the do statement and the while statement

The statement int n[4] = {11, -13, 17, 105};

is wrong; it gives an error message

In a simple 'if' statement with no 'else'. What happens if the condition following the 'if is false?

the body of the statement is executed

the program searches for the last else in the program

control 'falls through' to the statement following 'if

the body of the statement is executed

The comma operator (,) is used to

terminate loops or to exit from switch

permit two different expressions to appear in situations where only one expression would ordinarily be used

terminate loops or to exit from switch

alter the normal sequence of program execution by transferring control to some other part of the program

carry out a logical test and then take one of two possible actions, depending upon the outcome of the test

You___________overload function templates

may, as long as each version has the same arguments

may, as long as each version has different arguments

When a class serves as a base class to others, _____

all of its members are inherited, except for any protected members

all of its members are inherited

all of its members are inherited, except for any private members

all of its members are inherited, except for any protected members

None of its members is inherited unless specifically "listed

The >> (extraction) operator stops reading characters from the keyboard as soon as the user _____

types a character that is inappropriate for the variable's data type

A derived class may have more than one base class

A base class may have more than one derived class

The declaration section holds

data members, function prototypes, and the functions themselves

data members and function prototypes

data members, function prototypes, and the functions themselves

External documentation includes

a printout of the program's code

a programmer-defined class object

One way in which a structure differs from an array is that

a structure must have members that are all the same type

a structure may have members of more than one type

a structure must have members that are all the same type

an array may have members of more than one type

there is no difference between a structure and an array

542 + Mcqs in Object Oriented Programming Using Cpp in Computer Science Page 7 McqOptions

301.	A variable is _____
A.	an item of data
B.	a memory location whose value can change while the program is running
C.	a memory location whose value cannot change while the program is running
Answer» C. a memory location whose value cannot change while the program is running

Discussion

302.	Which of the following numerical value(s) is(are) invalid constant(s)?
A.	0.7
B.	9.3el2
C.	27512
D.	12345678
Answer» D. 12345678

Discussion

303.	The cout << sales[0] + sales[1]; statement will______
A.	display 22000
B.	display 10000 + 12000
C.	display sales[0] + sales[l]
D.	result in an error
Answer» B. display 10000 + 12000

Discussion

304.	Classes hold _____
A.	data
B.	methods
C.	both data and methods
D.	neither data nor methods
Answer» D. neither data nor methods

Discussion

305.	The data type listed at the beginning of a value-returning function's header indicates the type of data the function will _____
A.	return
B.	pass
C.	receive
Answer» B. pass

Discussion

306.	You separate a derived class name from its access specifier with
A.	a colon
B.	two colons
C.	at least one space
D.	a semicolon
Answer» D. a semicolon

Discussion

307.	Which of the following C++ expressions will find the square root of the number 16?
A.	pow (16, 2) (b) root (16, 2)
B.	sqroot (16)
C.	sqrt (16, 2)
D.	sqrt (16)
Answer» E.

Discussion

308.	A do-while loop contains
A.	only one statement between the do statement and the while statement
B.	several statements between the do statement and the while statement
C.	no statement at all between the do statement and the while statement
D.	only two statement between the do statement and the while statement
Answer» C. no statement at all between the do statement and the while statement

Discussion

309.	Which loop always processes its instructions at least once?
A.	do-while
B.	for
C.	while
Answer» B. for

Discussion

310.	A measure of the strength of the connection between two functions is
A.	cohesion
B.	coupling
C.	dependence
D.	subjection
Answer» C. dependence

Discussion

311.	When you declare a pointer, you must give it a _____
A.	type
B.	type and name
C.	type, name, and value
D.	name and value
Answer» C. type, name, and value

Discussion

312.	Which of the following, if any, are valid names for variables?
A.	class
B.	friend
C.	#OnHand
D.	void
Answer» E.

Discussion

313.	The statement int n[4] = {11, -13, 17, 105};
A.	assigns the value -13 to [2]
B.	assigns the value 17 to n[2]
C.	is wrong; it gives an error message
D.	assigns the value 18 to n[2]
Answer» C. is wrong; it gives an error message

Discussion

314.	A class named Student must have a constructor whose name is
A.	Student
B.	~Student
C.	constructor
D.	any legal C++ name
Answer» B. ~Student

Discussion

315.	Two access specifiers in C++ are
A.	public and private
B.	int and double
C.	formal and informal
D.	void and free
Answer» B. int and double

Discussion

316.	In a simple 'if' statement with no 'else'. What happens if the condition following the 'if is false?
A.	the program searches for the last else in the program
B.	nothing
C.	control 'falls through' to the statement following 'if
D.	the body of the statement is executed
Answer» D. the body of the statement is executed

Discussion

317.	Assuming the following three operators appear in an expression (without parentheses), which of the operators will be performed first?
A.	&&
B.	!
C.	\|\|
Answer» C. \|\|

Discussion

318.	It is sometimes useful to specify a class from which no objects will ever be created
A.	1
B.
Answer» B.

Discussion

319.	The comma operator (,) is used to
A.	permit two different expressions to appear in situations where only one expression would ordinarily be used
B.	terminate loops or to exit from switch
C.	alter the normal sequence of program execution by transferring control to some other part of the program
D.	carry out a logical test and then take one of two possible actions, depending upon the outcome of the test
Answer» B. terminate loops or to exit from switch

Discussion

320.	Precedence determines which operator
A.	is evaluated first
B.	is most important
C.	is fastest
D.	operates on the largest number
Answer» B. is most important

Discussion

321.	A function that changes an object's state belongs to the category of
A.	inspector functions
B.	mutator functions
C.	auxiliary functions
D.	manager functions
Answer» C. auxiliary functions

Discussion

322.	The operator that releases previously allocated memory is _____
A.	release
B.	return
C.	delete
D.	destroy
Answer» D. destroy

Discussion

323.	You___________overload function templates
A.	may, as long as each version has the same arguments
B.	may, as long as each version has different arguments
C.	must
D.	must not
Answer» C. must

Discussion

324.	When a class serves as a base class to others, _____
A.	all of its members are inherited
B.	all of its members are inherited, except for any private members
C.	all of its members are inherited, except for any protected members
D.	None of its members is inherited unless specifically "listed
Answer» C. all of its members are inherited, except for any protected members

Discussion

325.	The null character is represented by
A.	\n
B.	\0
C.	\o
D.	\r
Answer» C. \o

Discussion

326.	The >> (extraction) operator stops reading characters from the keyboard as soon as the user _____
A.	presses the Enter key
B.	types a character that is inappropriate for the variable's data type
C.	both (a) and (b)
Answer» D.

Discussion

327.	When the function void someFunction(int x) throw(char) is executed,_____
A.	it will throw nothing
B.	it may throw an integer
C.	it may throw a character
D.	it may not throw anything
Answer» D. it may not throw anything

Discussion

328.	If you want only one memory location to be reserved for a class variable, no matter how many objects are instantiated, you should declare the variable as________
A.	dynamic
B.	unary
C.	static
D.	volatile
Answer» D. volatile

Discussion

329.	A function that uses variable types is called __________
A.	overloaded
B.	a template function
C.	a variable function
D.	a virtual function
Answer» C. a variable function

Discussion

330.	Which of the following is(are) valid identifier(s)?
A.	record_1
B.	1 record
C.	return
D.	$tax
Answer» B. 1 record

Discussion

331.	Whis is true?
A.	A derived class may have more than one base class
B.	A base class may have more than one derived class
C.	both (a) and (b)
D.	neither (a) nor (b)
Answer» D. neither (a) nor (b)

Discussion

332.	An object is _____
A.	a category of classes
B.	a name given to a class
C.	an instance of a class
D.	the same as a class
Answer» D. the same as a class

Discussion

333.	6.5 is a _____ constant
A.	character literal
B.	named literal
C.	numeric literal
D.	string literal
Answer» D. string literal

Discussion

334.	Reserving memory during program execution is known as reserving it
A.	dynamically
B.	statically
C.	functionally
D.	powerfully
Answer» B. statically

Discussion

335.	_____ variables remain in memory until the statement block ends
A.	Area
B.	Global
C.	Local
D.	Reference
Answer» D. Reference

Discussion

336.	The operator that allocates new memory is _____
A.	allocate
B.	mem
C.	new
D.	next
Answer» D. next

Discussion

337.	The body of a C++ function is surrounded by _____
A.	parentheses
B.	angle brackets
C.	curly brackets
D.	square brackets
Answer» D. square brackets

Discussion

338.	The declaration section holds
A.	data members
B.	data members and function prototypes
C.	data members, function prototypes, and the functions themselves
D.	None of the above
Answer» C. data members, function prototypes, and the functions themselves

Discussion

339.	In object-oriented terms, an exception may be considered a(n) _____
A.	child
B.	encapsulation
C.	message
D.	scalar type
Answer» D. scalar type

Discussion

340.	One of the logical operators in the C language is represented by the symbol
A.	AND
B.	&&
C.	>=
D.	<=
Answer» C. >=

Discussion

341.	In a template function, _____ argument is generic, or parameterized
A.	no
B.	exactly one
C.	at least one
D.	more than one
Answer» D. more than one

Discussion

342.	Code that has already been tested is said to be _____
A.	inherited
B.	reusable
C.	reliable
D.	polymorphic
Answer» D. polymorphic

Discussion

343.	The int type of constants are whole numbers in the range
A.	- 23677 to 23678
B.	- 32768 to 32767
C.	- 32767 to 32768
D.	- 32864 to 32865
Answer» C. - 32767 to 32768

Discussion

344.	A file pointer always contains the address of the file
A.	1
B.
Answer» C.

Discussion

345.	External documentation includes
A.	a printout of the program's code
B.	flowcharts
C.	IPO charts
D.	pseudocode
Answer» B. flowcharts

Discussion

346.	Which of the following tells C++ to display numbers in fixed notation?
A.	setiosflags(fixed)
B.	setiosflags(fixed: :is)
C.	setiosflags(ios, fixed)
D.	setiosflags(ios::fixed)
Answer» E.

Discussion

347.	Which of the following is a C++ object?
A.	>>
B.	read()
C.	cin
D.	iostream
Answer» D. iostream

Discussion

348.	The #include instruction is called a
A.	direction
B.	directive
C.	merge instruction
D.	statement.
Answer» C. merge instruction

Discussion

349.	You can throw _____
A.	a scalar variable
B.	a constant
C.	a programmer-defined class object
D.	any of these
Answer» E.

Discussion

350.	One way in which a structure differs from an array is that
A.	a structure may have members of more than one type
B.	a structure must have members that are all the same type
C.	an array may have members of more than one type
D.	there is no difference between a structure and an array
Answer» B. a structure must have members that are all the same type

Discussion

Explore topic-wise MCQs in Computer Science.

A variable is _____

Which of the following numerical value(s) is(are) invalid constant(s)?

The cout << sales[0] + sales[1]; statement will______

Classes hold _____

The data type listed at the beginning of a value-returning function's header indicates the type of data the function will _____

You separate a derived class name from its access specifier with

Which of the following C++ expressions will find the square root of the number 16?

A do-while loop contains

Which loop always processes its instructions at least once?

A measure of the strength of the connection between two functions is

When you declare a pointer, you must give it a _____

Which of the following, if any, are valid names for variables?

The statement int n[4] = {11, -13, 17, 105};

A class named Student must have a constructor whose name is

Two access specifiers in C++ are

In a simple 'if' statement with no 'else'. What happens if the condition following the 'if is false?

Assuming the following three operators appear in an expression (without parentheses), which of the operators will be performed first?

It is sometimes useful to specify a class from which no objects will ever be created

The comma operator (,) is used to

Precedence determines which operator

A function that changes an object's state belongs to the category of

The operator that releases previously allocated memory is _____

You___________overload function templates

When a class serves as a base class to others, _____

The null character is represented by

The >> (extraction) operator stops reading characters from the keyboard as soon as the user _____

When the function void someFunction(int x) throw(char) is executed,_____

If you want only one memory location to be reserved for a class variable, no matter how many objects are instantiated, you should declare the variable as________

A function that uses variable types is called __________

Which of the following is(are) valid identifier(s)?

Whis is true?

An object is _____

6.5 is a _____ constant

Reserving memory during program execution is known as reserving it

_____ variables remain in memory until the statement block ends

The operator that allocates new memory is _____

The body of a C++ function is surrounded by _____

The declaration section holds

In object-oriented terms, an exception may be considered a(n) _____

One of the logical operators in the C language is represented by the symbol

In a template function, _____ argument is generic, or parameterized

Code that has already been tested is said to be _____

The int type of constants are whole numbers in the range

A file pointer always contains the address of the file

External documentation includes

Which of the following tells C++ to display numbers in fixed notation?

Which of the following is a C++ object?

The #include instruction is called a

You can throw _____

One way in which a structure differs from an array is that