C and C++ Online MCQs, Quiz and Practice Questions

Q1. Which one of these is an abstract data type?

int

string

Class

double

Q2. What is the greatest number of dimensions an array in C may own?

Two

Theoratically no limit. The only practical limits are memory size and compilers

Twenty

Eight

Q3. If x is an array of interger, then the value of &x[i] is the identical as

none of these

x + sizeof (int) * i

x+i

&x[i-1] + sizeof (int)

Q4. If S is an array of 80 characters, then the value allocated to S through the statement scanf("%s",S) with data 12345 would be

nothing since 12345 is an integer

S is an illegal name for string

"12345"

%s cannot be used for reading in values of S

Q5. Name the loop that executes at slightest once

do-while

For

If

while

Q6. Which of the subsequent observation is accurate?

Class is an instance of object

Object is an instance of data type

Class is an instance of data type

Object is an instance of a class

Q7. Who's called the father of c programming language?

Dennis Ritchie

Dr. E. F. Codd

Vjarne Stroustrup

James A. Sosling

Q8. An uninitialized pointer in C is described as ___

Destructor

dangling pointer

Constructor

Wild Pointer

Q9. Far pointer can reach_____

All memory location

No memory location

Single memory location

First and Last Memory Address

Q10. Which of the following accurately represents an array?

array{10};

array array[10];

int array;

int array[10];

Q11. Which of the following concepts indicates to determine at runtime what method to invoke?

Dynamic Typing

Dynamic binding

Dynamic loading

Data hiding

Q12. O(N)(linear time) is greater than O(1) constant time

FALSE

TRUE

Q13. How many kinds of polymorphisms are supported by C++?

4

1

2

3

Q14. Which of the subsequent operator is overloaded for object cout?

=

>>

<<

+

Q15. Which one is not a preserved keyword in C Language?

main

auto

register

case

Q16. Select the unmatched one out

character type

array type

integer type

boolean type

Q17. Toward 'C' programming language

Size of array should be known at compile time

All of these

Constant expressions are evaluated at compile

String constants can be concatenated at compile time

Q18. In which year did the C language develop?

1985

1980

1970

1975

Q19. The value 132.54 can be represented using which input kind? In C++,

float

bool

int

void

Q20. Which of the subsequent belongs to the set of character types?

srting

double

char

wchar_t

Q21. Which is the symbol of character data kind by default?

Signed

None of these

Unsigned

Implementation dependent

Q22. Cout refers to a/an __________

function

object

operator

macro

Q23. How many instances of an abstract class can be generated?

0

1

13

5

Q24. A pointer that is pointing to NOTHING is named as____

NULL Pointer

VOID Pointer

WILD Pointer

DANGLING Pointer

Q25. What is the index number of the last component of an array with nine elements?

0

8

Programmer-defined

9

Q26. A pointer pointing to a memory location of the variable even the next deletion of the variable is known as

far pointer

void pointer

dangling pointer

null pointer

Q27. Which of the following ways are legal to reach a class data member applying this pointer?

this->x

*this-x

*this.x

this.x

Q28. A C variable name can begin with a ____

Underscore

Plus Sign (+)

Asterisk (*)

Number

Q29. Prototype of a function indicates_____

Output of Function

Input of a Function

Declaration of Function

Name of Function

Q30. Which of the following isn't a sort of inheritance?

Hierarchical

Distributive

Multilevel

Multiple

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