Deck 3: Loops, Headers, Macros, and Arrays

Question 1

What is output of below program?
Int main()
{
Int i,j;
For(i = 0,j=0;i<5;i++)
{
Printf("%d%d--",i,j);
}
Return 0;
}

A)0--01--12--23--34--
B)00--10--20--30--40--
C)Compilation Error
D)00--01--02--03--04--

Answer 1

00--10--20--30--40--

Question 2

What is output of below program?
Int main()
{
Int i;
For(i=0; i<5; ++i++)
{
Printf("Hello");
}
Return 0;
}

A)Hello is printed 5 times
B)Compilation Error
C)Hello is printed 2 times
D)Hello is printed 3 times

Answer 2

Compilation Error

Question 3

What is output of below program?
Int main()
{
For(; ;);
For(; ;);
Printf("Hello");
Return 0;
}

A)Compilation Error
B)Runtime Error
C)Nothing is printed
D)Hello is printed infinite times

Answer 3

Nothing is printed

Question 4

What is the output of below program?
Int main()
{
For(; ;)
For(; ;)
Printf("Hello..");
Return 0;
}

A)Compilation Error
B)Runtime Error
C)Hello is printed one time
D)Hello is printed infinite times

Question 5

How many loops are there in C

A)1
B)2
C)3
D)4

Question 6

What is the following is invalid header file in C?

A)math.h
B)mathio.h
C)string.h
D)ctype.h

Question 7

What is storage class for variable A in below code?int main(){int A;A = 10;printf("%d", A);return 0;}

A)extern
B)auto
C)register
D)static

Question 8

#include "stdio.h"
Int main()
{
Int a@ = 10;
Printf("%d", a@);
Return 0;
}

A)10
B)10@
C)@
D)[Error] stray '@' in program

Question 9

#include "stdio.h"
Int main()
{
Int a = 10;
Printf("%d", a);
Int a = 20;
Printf("%d",a);
Return 0;
}

A)1020
B)Error: Redeclartion of a
C)2020
D)1010

Question 10

#include "stdio.h"int a = 20;
Int main()
{
Int a = 10;
Printf("%d", ::a);
Return 0;
}

A)10
B)20
C)::20
D)::10

Question 11

#include "stdio.h"
Int main()
{
Int a = 10, b = 20;
If(a=b)
{
Printf("Easy");
}
Else{printf("Hard");
}
Return 0;
}

A)Easy
B)Hard
C)EasyHard
D)Error in program

Question 12

Which gcc flag is used to enable all Compiler warnings?

A)gcc -W
B)gcc -w
C)gcc -Wall
D)gcc -wall

Question 13

Which gcc flag is used to generate maximum debug information?

A)gcc -g0
B)gcc -g1
C)gcc -g
D)gcc -g3

Question 14

Which macro is used to insert assembly code in C program (VC++ compiler)?

A)__asm__
B)_asm_
C)__asm
D)asm

Question 15

Which macro is used to insert assembly code in C program (GCC compiler)?

A)__asm__
B)_asm_
C)__asm
D)asm

Question 16

Will compiler produce any compilation error if same header file is included two times?

A)YES
B)NO

Question 17

What should be the output of below program? #define
# @@include "stdio.h"
Int main()
{
Printf("C.com");
Return 0;
}

A)C.com
B)Nothing
C)Compilation Error
D)Depends on Complier

Question 18

Which one of the following is invalid macro in C programming?

A)#pragma
B)#error
C)#ifndef
D)#elseif

Question 19

What is the extension of output file produced by Preprocessor?

A).h
B).exe
C).i
D).asm

Question 20

Set of consecutive memory locations is called as ________.

A)Function
B)Array
C)Loop
D)Pointer

Question 21

Array can be considered as set of elements stored in consecutive memory locations but having __________.

A)Same Data Type
B)Same Scope
C)None of these
D)Different Data Type

Question 22

In Array, There is one to one correspondence between set of ________ and set of values.

A)Indices
B)Variables
C)Constants
D)Memory Locations

Question 23

Smallest element of an array is called as _______.

A)Middle Bound
B)Range
C)Upper Bound
D)Lower Bound

Question 24

If we have declared an array described below -int arr[6];then which of the following array element is considered as last array element ?

A)arr[6]
B)arr[4]
C)arr[0]
D)arr[5]

Question 25

Array which is having ____ dimensions is called as 2-D array.

A)3
B)2
C)5
D)4

Question 26

What is maximum dimension that array can have in c programming?

A)2
B)4
C)Theoretically No Limit but practically limit depends on memory
D)3

Question 27

Array with last element 'n' will always have array size equal to _______.

A)n+1
B)n-1
C)n+n
D)n

Question 28

Array is an example of _______ type memory allocation.

A)Compile Time
B)Run Time
C)none
D)all

Question 29

Array is ______ data type in C Programming language.

A)Custom Data Type
B)Primitive Data Type
C)None of these
D)Derived Data Type

Question 30

A Pointer to a block of memory is considered same as an array.

A)NO
B)YES
C)none
D)all

Question 31

What will happen if in a C program you assign a value to an array element whose subscript exceeds the size of array?

A)The element will be set to 0.
B)The compiler would report an error.
C)The array size would appropriately grow.
D)The program may crash if some important data gets overwritten.

Question 32

If you pass an array as an argument to a function, what actually gets passed?

A)Base address of the array
B)Value of elements in array
C)First element of the array
D)Address of the last element of array

Question 33

Pointer is special kind of variable which is used to store __________ of the variable.

A)Address
B)Value
C)Variable Name
D)Data Type

Question 34

Pointer variable is declared using preceding _________ sign.

A)^
B)*
C)&
D)%

Question 35

Address stored in the pointer variable is of type __________.

A)Integer
B)Array
C)Floating
D)Character

Question 36

Consider the 32 bit compiler. We need to store address of integer variable to integer pointer. What will be the size of integer pointer?

A)10 Bytes
B)4 Bytes
C)2 Bytes
D)6 Bytes

Question 37

In order to fetch the address of the variable we write preceding _________ sign before variable name.

A)Asteriks
B)Percent
C)Comma
D)Ampersand

Question 38

What is true about fputs function

A)write to a file
B)takes two parameters
C)requires a file pointer
D)all of above

Question 39

Wild pointer in C

A)if pointer is pointing to a memory location from where variable has been deleted
B)if pointer has not been initialized
C)if pointer has not defined properly
D)if pointer pointing to more than one variable

Question 40

Any type of modification on the parameter inside the function will reflect in actual variable value can be related to..

A)call by value
B)call by reference
C)both of above
D)none of above

Question 41

Size of void pointer is

A)1 byte
B)2 byte
C)3 byte
D)4 byte

Question 42

To print a single character in ouptut,which function is used?

A)getchar()
B)gets()
C)putchar()
D)puts()

Question 43

#define t 10
Void main()
{
Printf("%d",t);
}

A)10
B)Error:Unfined symbol 't'
C)Error:Improper placement of preprocessor
D)none of the above

Question 44

Explicit data type conversion is called

A)Type casting
B)conversion
C)separation
D)none

Question 45

which of these is not a valid character constant

A)"A"
B)'A'
C)"*"
D)"+"

Question 46

If 'a' is the integer which is not statically initialized then what is the value of 'a'?

A)zero
B)garbage
C)none of these
D)One

Question 47

C is a ____________________ language

A)Platform independent programming
B)Platform dependent programming
C)Object oriented programming
D)None of the above.

Question 48

In a function call, _____________ is passed as arguments.

A)variables
B)constants
C)Expressions
D)All the above

Question 49

() is used for _________

A)function body
B)Arguments
C)Return type
D)Declaration of function

Question 50

which is better memory allocation when size is not known

A)static
B)dynamic
C)both
D)neither

Question 51

which of the following is the best for getting a string with space from the standard input

A)gets
B)getc
C)fgets
D)puts

Question 52

Which statement is used to compare the two strings?

A)strcmp
B)strcompare
C)stringcompare
D)str_cmp

Question 53

void main() {
Printf();
}

A)Run-Time Error
B)Compile-Time Error
C)none
D)all