542 + Mcqs in Object Oriented Programming Using Cpp Page 9 McqOptions

401.	When two types are used in a function template and one is labeled T, the other
A.	must also be named T
B.	must be named U
C.	can be any legal C++ identfier
D.	it is illegal to have two types
Answer» B. must be named U

Discussion

402.	In C++, the address operator is the following symbol _____
A.	>>
B.	&
C.	*
D.	!
Answer» C. *

Discussion

403.	An array name is a _____
A.	subscript
B.	formal parameter
C.	memory address
D.	prototype
Answer» D. prototype

Discussion

404.	Local variables _____
A.	are created outside a block
B.	are known only to that block
C.	continue to exist when their block ends
D.	are illegal in C++
Answer» C. continue to exist when their block ends

Discussion

405.	Variables that are known only to the function in which they are declared are called _____ variables
A.	global
B.	local
C.	main
D.	separate
Answer» C. main

Discussion

406.	Functions that returns information about an object's state can be classified as ________
A.	inspector functions
B.	mutator functions
C.	auxiliary functions
D.	manager functions
Answer» B. mutator functions

Discussion

407.	To enter a comment in a C++ program, you begin the comment with _____
A.	**
B.	&&
C.	\\
D.	@
Answer» E.

Discussion

408.	Which of the following is the insertion operator?
A.	>>
B.	<<
C.	//
D.	/*
Answer» C. //

Discussion

409.	The _____ function returns the uppercase equivalent of a character
A.	caseupper
B.	charupper
C.	toupper
D.	uCase
Answer» D. uCase

Discussion

410.	A fundamental type such as int or double is a _____
A.	programmer-defined type
B.	complex type
C.	nonscalar type
D.	scalar type
Answer» E.

Discussion

411.	You define a structure type globally because _____
A.	you save many lines of code by not rewriting an identical structure definition in each function that uses it
B.	you will never change its definition
C.	it is required in C++
D.	All of the above
Answer» B. you will never change its definition

Discussion

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

Discussion

413.	The prototype for a derived class constructor may include arguments for
A.	data members of the derived class
B.	data members of the base class
C.	both (a) and (b)
D.	neither (a) nor (b)
Answer» D. neither (a) nor (b)

Discussion

414.	The name of a function ends with
A.	double quotes
B.	single quotes
C.	parenthesis
D.	#
Answer» D. #

Discussion

415.	To include the double quotes as part of the control string we use the symbol
A.	%"
B.	""
C.	\"
D.	#
Answer» D. #

Discussion

416.	The 'break' statement is used to exist from
A.	a do loop
B.	a for loop
C.	a switch statement
D.	All of the above
Answer» E.

Discussion

417.	When you define an object that is a member of a class, such as Student Abby; _____
A.	a block of memory is set aside and all data members are assigned valid values
B.	a block of memory is set aside
C.	no memory is set aside until values are defined
D.	no memory is set aside, but valid values are assigned to data members
Answer» C. no memory is set aside until values are defined

Discussion

418.	The step-by-step instructions that solve a problem are called _____
A.	an algorithm
B.	a list
C.	a plan
D.	a sequential structure
Answer» B. a list

Discussion

419.	The weakest form of cohesion is
A.	coincidental
B.	functional
C.	logical
D.	communicational
Answer» B. functional

Discussion

420.	A(n) _____ is a numeric variable used for counting something
A.	accumulator
B.	adder
C.	constant
D.	counter
Answer» E.

Discussion

421.	Header files often have the file extension _____
A.	.H
B.	.HE
C.	.HEA
D.	.HEAD
Answer» B. .HE

Discussion

422.	The keyword used to define a structure is _____
A.	stru
B.	stt
C.	struct
D.	structure
Answer» D. structure

Discussion

423.	A function can
A.	return a value
B.	perform a task
C.	change value of actual arguments in call by reference
D.	a, b, c above are all true
Answer» E.

Discussion

424.	The 'continue' statement 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 a switch
C.	alter the normal sequence of program execution by transferring control to some other part of the program
D.	All of the above
Answer» E.

Discussion

425.	The rules of a programming language are called its _____
A.	code
B.	guidelines
C.	procedures
D.	regulations
Answer» E.

Discussion

426.	If p and q are assigned the values 2 and 3 respectively then the statement p = q++
A.	gives an error message
B.	assigns a value 4 to p
C.	assigns a value 3 to p
D.	assigns a value 5 to p
Answer» D. assigns a value 5 to p

Discussion

427.	Variables declared outside a block are called _____
A.	global
B.	universal
C.	stellar
D.	external
Answer» B. universal

Discussion

428.	When all of the operations in a function contribute to the performance of only one task, a function has
A.	singular cohesion
B.	tight cohesion
C.	functional cohesion
D.	sequential cohesion
Answer» D. sequential cohesion

Discussion

429.	The instruction "If it's raining outside, then take an umbrella to work" is an example of the _____ structure
A.	control
B.	repetition
C.	selection
D.	sequence
Answer» D. sequence

Discussion

430.	A blueprint for creating an object in C++ is called _____
A.	a class
B.	an instance
C.	a map
D.	a pattern
Answer» B. an instance

Discussion

431.	The newline character is always included between
A.	pair of parentheses
B.	pair of curly braces
C.	control string
D.	&
Answer» D. &

Discussion

432.	The get() function returns _____
A.	a character
B.	void
C.	a reference to the object that invoked it
D.	a copy of the object that invoked it
Answer» D. a copy of the object that invoked it

Discussion

433.	Which of the following tells C++ to display numbers with two decimal places?
A.	setdecimal(2)
B.	setiosflags(2)
C.	setiosflags(2.00)
D.	setprecision(2)
Answer» E.

Discussion

434.	Which of the following statements allows the user to enter data at the keyboard?
A.	cin << currentPay;
B.	cin >> currentPay;
C.	cout << currentPay;
D.	cout >> currentPay;
Answer» C. cout << currentPay;

Discussion

435.	The number 125.35 is a _____
A.	character literal constant
B.	numeric literal constant
C.	string literal constant
D.	variable
Answer» C. string literal constant

Discussion

436.	When a break statement is used in a loop, the control skips the rest of the statements in the loop after it and jumps
A.	to the last lines in the program
B.	to the next statement written after the body of the loop
C.	to the first statement in the body of the loop
D.	All. of the above
Answer» C. to the first statement in the body of the loop

Discussion

437.	When using the standard files that come with the C++ compiler, you should surround the header file name with _____
A.	square brackets
B.	angle brackets
C.	parentheses
D.	quotes
Answer» C. parentheses

Discussion

438.	Overloaded functions are required to
A.	have the same return type
B.	have the same number of parameters
C.	perform the same basic functions
D.	None of the above
Answer» E.

Discussion

439.	Which of the following formulas can be used to generate random integers between 1 and 10?
A.	1 + rand() % (10 - 1 + 1)
B.	1 + (10 - 1 + 1) % rand()
C.	10 + rand() % (10 - 1 + 1)
D.	10 + rand() % (10 + 1)
Answer» B. 1 + (10 - 1 + 1) % rand()

Discussion

440.	The items listed in the function header are called _____
A.	actual arguments
B.	formal parameters
C.	passed parameters
D.	sent arguments
Answer» C. passed parameters

Discussion

441.	You add the desired type to a specific template class instantiation by placing the type's name ______
A.	between angle brackets
B.	in parentheses
C.	on a line by itself
D.	immediately prior to the class name
Answer» B. in parentheses

Discussion

442.	Redirection redirects
A.	a stream from a file to the screen
B.	a file from a device to a stream
C.	a device from the screen to a file
D.	the screen from a device to a stream
Answer» B. a file from a device to a stream

Discussion

443.	The best-written classes have
A.	all functions private
B.	all data public
C.	no functions
D.	None of the above
Answer» E.

Discussion

444.	Which of the following declares and initializes an Integer variable named numltems?
A.	int numltems = 0;
B.	int numltems = '0';
C.	integer numltems = 0;
D.	numltems int = 0;
Answer» B. int numltems = '0';

Discussion

445.	The delete operator returns ______ to the operating system
A.	memory that is no longer needed
B.	void
C.	recycle bin
D.	None of the above
Answer» B. void

Discussion

446.	To use the this pointer with a member function, you _____
A.	declare this as static
B.	declare this as global
C.	define this as equal to the address of the appropriate object
D.	do nothing; it is automatically supplied for you
Answer» E.

Discussion

447.	Which of the following control structures is used in every program?
A.	repetition
B.	selection
C.	sequence
D.	switching
Answer» D. switching

Discussion

448.	Which of the following calls a function named displayName, passing it no actual arguments?
A.	call displayName;
B.	call displayName ();
C.	displayName;
D.	displayName();
Answer» E.

Discussion

449.	If a class object is thrown with a throw statement, then a subsequent catch block has a usable match if the type of the catch argument is_________
A.	a parent class of the thrown class
B.	a child class of the thrown class
C.	either (a) or (b)
D.	neither (a) nor (b)
Answer» B. a child class of the thrown class

Discussion

450.	Evaluate the following expression: 7 >=3 + 4 \|\| 6
A.	1
B.
C.	ios
D.	out
Answer» B.

Discussion

Explore topic-wise MCQs in Computer Science.

When two types are used in a function template and one is labeled T, the other

In C++, the address operator is the following symbol _____

An array name is a _____

Local variables _____

Variables that are known only to the function in which they are declared are called _____ variables

Functions that returns information about an object's state can be classified as ________

To enter a comment in a C++ program, you begin the comment with _____

Which of the following is the insertion operator?

The _____ function returns the uppercase equivalent of a character

A fundamental type such as int or double is a _____

You define a structure type globally because _____

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

The prototype for a derived class constructor may include arguments for

The name of a function ends with

To include the double quotes as part of the control string we use the symbol

The 'break' statement is used to exist from

When you define an object that is a member of a class, such as Student Abby; _____

The step-by-step instructions that solve a problem are called _____

The weakest form of cohesion is

A(n) _____ is a numeric variable used for counting something

Header files often have the file extension _____

The keyword used to define a structure is _____

A function can

The 'continue' statement is used to

The rules of a programming language are called its _____

If p and q are assigned the values 2 and 3 respectively then the statement p = q++

Variables declared outside a block are called _____

When all of the operations in a function contribute to the performance of only one task, a function has

The instruction "If it's raining outside, then take an umbrella to work" is an example of the _____ structure

A blueprint for creating an object in C++ is called _____

The newline character is always included between

The get() function returns _____

Which of the following tells C++ to display numbers with two decimal places?

Which of the following statements allows the user to enter data at the keyboard?

The number 125.35 is a _____

When a break statement is used in a loop, the control skips the rest of the statements in the loop after it and jumps

When using the standard files that come with the C++ compiler, you should surround the header file name with _____

Overloaded functions are required to

Which of the following formulas can be used to generate random integers between 1 and 10?

The items listed in the function header are called _____

You add the desired type to a specific template class instantiation by placing the type's name ______

Redirection redirects

The best-written classes have

Which of the following declares and initializes an Integer variable named numltems?

The delete operator returns ______ to the operating system

To use the this pointer with a member function, you _____

Which of the following control structures is used in every program?

Which of the following calls a function named displayName, passing it no actual arguments?

If a class object is thrown with a throw statement, then a subsequent catch block has a usable match if the type of the catch argument is_________

Evaluate the following expression: 7 >=3 + 4 || 6