Functions, Namespaces & Exceptions in C++ Quiz 1

1 / 50

If the user did not supply the value, what value will it take?

both default value & rise an error

rise an error

error

default value

2 / 50

Which is used to keep the call by reference value as intact?

virtual

absolute

static

const

3 / 50

What will you use if you are not intended to get a return value?

volatile

void

static

const

4 / 50

What is a comment in c++?

comments are parts of the source code disregarded by the compiler

comments are executed by the compiler

comments are executed by the compiler to find the meaning of the comment

comments are executable

5 / 50

From which function the execution of a C++ program starts?

new() function

main() function

start() function

end() function

6 / 50

Which looping process is best used when the number of iterations is known?

while

do-while

for

all looping processes require that the iterations be known

7 / 50

How many types of loops are there in C++?

8 / 50

Which operator is having the highest precedence?

postfix

shift

equality

unary

9 / 50

Where does the execution of the program starts?

user-defined function

else function

main function

void function

10 / 50

Which of the following is the default return value of functions in C++?

float

char

int

void

11 / 50

An inline function is expanded during ______________

compile-time

run-time

never expanded

end of the program

12 / 50

Where does the return statement returns the execution of the program?

main function

block function

caller function

same function

13 / 50

How are many sequences of statements present in c++?

14 / 50

What is used to write multi line comment in c++?

/* ?. */

/$ ?. */

/$ ?. $/

15 / 50

What are the advantages of passing arguments by reference?

All of the mentioned

There is no need to call constructors for parameters (i.e. faster)

There is need to copy parameter values (i.e. less memory used)

Changes to parameter values within the function also affect the original arguments

16 / 50

Function overloading is also similar to which of the following?

constructor overloading

operator overloading

destructor overloading

function overloading

17 / 50

How many types of returning values are present in c++?

18 / 50

What is this operator called ?:?

casting operator

unrelational

relational

conditional

19 / 50

Which of the following feature is used in function overloading and function with default argument?

Modularity

Encapsulation

Polymorphism

Abstraction

20 / 50

Which operator is having the right to left associativity in the following?

Array subscripting

Addition and subtraction

Function call

Type cast

21 / 50

If an argument from the parameter list of a function is defined constant then _______________

It cannot be modified inside the function

Segmentation fault

Error occurs

It can be modified inside the function

22 / 50

What will happen when we use void in argument passing?

It will return value with help of object

Maybe or may not be return any value to its caller

It will return value to its caller

It will not return value to its caller

23 / 50

By default how the value are passed in c++?

call by object

call by reference

call by pointer

call by value

24 / 50

What should be passed in parameters when function does not require any parameters?

both void & blank space

tab space

void

blank space

25 / 50

When will we use the function overloading?

different function name but same number of arguments

same function name but same number of arguments

different function name but different number of arguments

same function name but different number of arguments

26 / 50

What is the use of the indentation in c++?

distinguishes between comments and code

r distinguishes between comments and inner data

distinguishes between comments and outer data

r distinguishes between comments and outer data

27 / 50

In which of the following we cannot overload the function?

caller

called function

return function

main function

28 / 50

What is an inline function?

A function that is expanded at each call during execution

A function that is called during compile time

A function that is not checked for semantic analysis

A function that is not checked for syntax errors

29 / 50

How many types of comments are there in c++?

30 / 50

What is the use of dynamic_cast operator?

it converts the virtual base object to derived class

it converts the virtual base object to derived objects

it converts virtual base class to derived class

it will convert the operator based on precedence

31 / 50

Which value will it take when both user and default values are given?

user value

defined value

default value

custom value

32 / 50

The switch statement is also called as?

selective structure

bitwise structure

certain structure

choosing structure

33 / 50

When we define the default values for a function?

When a function is called

When a function is defined

When the scope of the function is over

When a function is declared

34 / 50

The destination statement for the goto label is identified by what label?

35 / 50

How many can max number of arguments present in function in the c99 compiler?

102

127

36 / 50

Which is more effective while calling the functions?

call by reference

call by value

call by object

call by pointer

37 / 50

What are mandatory parts in the function declaration?

return type, function name

return type, function name, parameters

parameters, variables

parameters, function name

38 / 50

which of the following is used to terminate the function declaration?

)

;

]

39 / 50

What is the scope of the variable declared in the user defined function?

whole program

only inside the {} block

header section

the main function

40 / 50

Overloaded functions are ________________

Very long functions that can hardly run

One function containing another one or more functions inside it

Two or more functions with the same name but different number of parameters or type

Very long functions

41 / 50

How many minimum number of functions should be present in a C++ program for its execution?

42 / 50

What will happen while using pass by reference?

The values of those variables are passed to the function so that it can manipulate them

The function declaration should contain $

The location of variable in memory is passed to the function so that it can use the same memory area for its processing

The function declaration should contain ampersand (& in its type declaration)

43 / 50

The if..else statement can be replaced by which operator?

Multiplicative operator

Bitwise operator

Addition operator

Conditional operator

44 / 50

Which of the following permits function overloading on c++?

type

number of objects

number of arguments

type & number of arguments

45 / 50

What type of comments does c++ support?

single line and multi-line

multiline

reusable line

single line

46 / 50

What happens to a function defined inside a class without any complex operations (like looping, a large number of lines, etc)?

The program gives an error

It becomes a default calling function of the class

It becomes a virtual function of the class

It becomes an inline function of the class

47 / 50

Where can the default parameter be placed by the user?

leftmost

topmost

rightmost

both leftmost & rightmost

48 / 50

Which of the following is important in a function?

Both return type and function name

The return type, function name and parameter list

Function name

Return type

49 / 50

Where should default parameters appear in a function prototype?

Anywhere inside the parameter list

To the rightmost side of the parameter list

Middle of the parameter list

To the leftmost side of the parameter list

50 / 50

How many ways of passing a parameter are there in c++?

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