FA3

Question 1

All lines beginning with two slash signs (//) do have any effect on the behavior of the program.
Group of answer choices

True

False

Answer 1

False

Question 1

C++ is not case-sensitive programming language.
Group of answer choices

True

False

Answer 1

False

Question 2

Which of the following is not an example of program statements seen inside a main() function?
Group of answer choices

read keyboard input such as cin»number;

perform mathematical operations such as sum = a + b;

preprocessor directive such as #define FALSE 0

display information on the screen such as cout«”Hello”;

Answer 2

preprocessor directive such as #define FALSE 0

Question 3

The following statements are true about C++ except __________.
Group of answer choices

It uses compilation process.

It is a low-level language.

It is case sensitive.

It supports procedural, object-oriented, and generic programming.

Answer 3

It is a low-level language.

Question 4

Which of the following symbols is best used to make a 20-line statements as block comment?
Group of answer choices

/* */

??

//

Answer 4

/* */

Question 5

Namespace std contains all the classes, objects and functions of the standard C++ library.
Group of answer choices

True

False

Answer 5

True

Question 6

All C++ statements that need to be executed are written within main ( ).
Group of answer choices

True

False

Answer 6

False

Question 7

The symbols that indicates the beginning of main’s function definition.
Group of answer choices

}

{

<>

#

Answer 7

{

Question 8

Two slash signs inserted by the programmer in his C++ program indicate that the rest of the line is a comment.
Group of answer choices

True

False

Answer 8

True

Question 9

These are names that are given to various elements of a program created by the program.
Group of answer choices

Tokens

Identifiers

Constants

Keywords

Answer 9

Identifiers

Question 10

An operator that is also called ternary operator.
Group of answer choices

Conditional Operator

Increment Operator

Triad Operator

Modulo Operator

Answer 10

Conditional Operator

Question 11

The following statements are TRUE in creating identifiers except _______
Group of answer choices

Special characters are allowed.

An identifier must not be one of the keywords.

Blank spaces are not allowed instead use underscore(_).

The first character must be a letter or underscore.

Answer 11

Special characters are allowed

Question 12

A sequence of letters, digits or underscore that may be used as a name of a variable, function, or class.
Group of answer choices

Variable

Keywords

Constants

Identifiers

Answer 12

Identifiers

Question 13

Which of the following can be considered as a valid identifier?
Group of answer choices

Final_Grade

First Name

$Area

123Height

Answer 13

Final_Grade

Question 14

Consider the following statements:

int x = 22,y=15;

x = (x>y) ? (x+y) : (x-y);

What will be the value of x after executing these statements?

Group of answer choices

7

Error. Cannot be executed

22

37

Answer 14

37

Question 15

All variables must be declared before it will be used. Which of the following is a correct

declaration of variables?

Group of answer choices

char opt 1;

float Wt, Ht;

float Vol; A;

int x,y

Answer 15

float Wt, Ht;

Question 16

What value is placed in var? var = 12 > 9 ? 0 : 1;
Group of answer choices

1

9

12

0

Answer 16

0

Question 17

Which of the following is NOT a primitive data type in C++ programming?
Group of answer choices

int

char

float

string

Answer 17

string

Question 18

Identify what part of the structure of C++ program is the bold and underlined text.

/* this solves the area of a circle
you need to enter the radius as input
and it displays the area*/
#include<iostream>
#define PI 3.14159
using namespace std;
int main( )
{
float r, area;
cout<<”Enter radius:”;
cin>>r;
area= PI*r*r;
cout<<”\nThe sum of” << x << “and” << y << “is” << sum;
getch( );
return 0;
}</iostream>

Group of answer choices

main() function

Preprocessor directive

Statement

Comment

Answer 18

Preprocessor directive.

Question 19

The symbol used in a preprocessor directive.
Group of answer choices

Colon(:)

Semicolon (;)

Comma (,)

Sharp sign(#)

Answer 19

Sharp sign(#)

Question 20

Identify what part of the structure of C++ program is the bold and underlined text.

//this gets the sum of two numbers
#include<iostream>
#include<conio.h>
using namespace std;
int main( )
{
int a, b, sum;
cout<<”Enter two numbers:”;
cin>>a >> b;
sum= a+b;
cout<<”\nThe sum of” << x << “and” << y << “is” << sum;
getch( );
return 0;
}</conio.h></iostream>

Group of answer choices

main() function

Statement

Comment

Preprocessor directive

Answer 20

main() function

Question 21

define g ‘9.8’

Which of the following demonstrates the correct use of #define directive if I want to assign 9.8 as gravitational acceleration constant?Note: Use g to represent gravitational acceleration constant
Group of answer choices

Answer 21

define g 9.8

Question 22

The code “#include <iostream>" is an example of what part of a C++ program?
Group of answer choices</iostream>

Statement

Comment

Preprocessor directive

main() function

Answer 22

Preprocessor directive

Question 23

include <iomanip> instructs the preprocessor to include a section of standard C++ code allowing to perform standard input and output operations</iomanip>

Group of answer choices

True

False

Answer 23

False

Question 24

main() is an exit point of all the function where program execution begins. Group of answer choices True False

Answer 24

True

Question 25

Namespace std contains all the classes, objects and functions of the standard C++ library. Group of answer choices True False

Answer 25

True

Question 26

Consider the following program snippet. What will be the output? int A = 1, B = 2, C = 3, X = 4, Y = 5, Z = 6; A++; B--; --C; X = Y++ + --Z; cout << B++ - --C; Group of answer choices 8 1 9 0

Answer 26

0

Question 27

The operator used to divide two numbers and returns only the remainder. Group of answer choices \ // / %

Answer 27

%

Question 28

True or False: (a!=4) || !(b>c) where a=1, b=2, c=0 Group of answer choices True False Cannot be determined

Answer 28

True

Question 29

All are arithmetic operators, except ______ Group of answer choices != * % +

Question 30

The special character that indicates a string constant in a Turbo C++ program. Group of answer choices " " /* */ ' ' / /

Answer 30

" "

Question 31

Let a = 10. What will be the value of a after the following expression a -= 5; is executed? Group of answer choices 1 0 10 5

Answer 31

5

Question 32

Primitive data types are built-in that can be used directly by the user to declare variables. Group of answer choices True False

Answer 32

True

Question 33

It is an operator used to alter the value of a variable Group of answer choices = <= == !=

Answer 33

=

Question 34

Which of the following is not true about C++? Group of answer choices It is interpreted. It is statically typed. It is general-purpose programming language. It is a free-form programming language.

Answer 34

It is interpreted.

Question 35

The following statements about int main() function is TRUE except ________. Group of answer choices All C++ programs should have a main function. The execution of all C++ programs begins with the main function Semicolon is required at the end of this statement. The function needs to return some integer at the end of the execution.

Answer 35

Semicolon is required at the end of this statement.

Question 36

Statically typed is a programming language characteristic in which variable types are explicitly declared. Group of answer choices True False

Answer 36

True

Question 37

Given the declaration int num=5; Which of the following is the other way to initialize variables? Group of answer choices int 5=num; int num 5; int num(5); int num[5];

Answer 37

int num(5);

Question 38

The expression x += y is the same as ______. Group of answer choices x =+ y x == +y x = x + y y += x

Question 39

It is an operator used to alter the value of a variable Group of answer choices = == != <=

Answer 39

=

Question 40

A global may be used in any part of the program. Group of answer choices True False

Answer 40

True

Question 41

It is a named location in memory that is used to hold a value that may be modified by the program. Group of answer choices Identifiers Constants Tokens Variable

Answer 41

Variable

Question 42

Which statement makes sure that x is an even number? Group of answer choices x = x%2 == 0 ? x+1 : x; x = x%2 == 1 ? x++ : x; x += x%2 == 0 ? 0 : 1 ; x += 2*x ;

Answer 42

x += x%2 == 0 ? 0 : 1 ;

Question 43

C++ was developed by Bjarne Stroustrup as an enhancement to what programming language? Group of answer choices Pascal B language C language BASIC

Answer 43

C language

Question 44

The backslash constant that represents a new line. Group of answer choices \t \r \n \\

Answer 44

\n

Question 45

Blank lines have effect on a C++ program because they improve readability of the code. Group of answer choices True False

Answer 45

True

Question 46

Returning 0 when we run a C++ program indicates that our program has not run successfully. Group of answer choices True False

Answer 46

False