c lang objective type questions

8/13/2019 c lang objective type questions

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1. Which of the following language is predecessor to C Programming Language?

A B BCPL C++

2. C programming language was developed by

Dennis

Ritchie Ken Thompson Bill Gates Peter Norton

3. C was developed in the year ___

1970 1972 1976 1980

4. C is a ___ language

HighLevel

Low Level Middle Level Machine Level

5. C language is available for which of the following Operating Systems?

DOS Windows UnixAll

of these

6. Which of the following symbol is used to denote a pre-processor statement?

! # ~ ;

7. Which of the following is a Scalar Data type

Float Union Array Pointer

8. Which of the following are tokens in C?

Keywords Variables ConstantsAll of

the above

9. What is the valid range of numbers for int type of data?

0 to 256-32768 to

+32767-65536 to +65536

Nospecificrange

10. Which symbol is used as a statement terminator in C?

! # ~ ;

11. Which escape character can be used to begin a new line in C?

\a \b \m \n

12. Which escape character can be used to beep from speaker in C?

\a \b \m \n

13. Character constants should be enclosed between ___

Single quotes Double quotes Both a and bNone of

these

14. String constants should be enclosed between ___

Single quotes Double quotes Both a and bNone of

these

15. Which of the following is invalid?

a abc


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16. The maximum length of a variable in C is ___

8 16 32 64

17. What will be the maximum size of a float variable?

1 byte 2 bytes 4 bytes 8 bytes

18. What will be the maximum size of a double variable?


19. A declaration float a,b; occupies ___ of memory


20. The size of a String variable is

1 byte 8 bytes 16 bytes None of these

1. Which of the following is an example of compounded assignment statement?

a = 5 a += 5 a = b = c a = b

2. The operator && is an example for ___ operator.

Assignment Increment Logical Rational

3. The operator & is used for

Bitwise AND Bitwise OR Logical AND Logical OR

4. The operator / can be applied to

integer values float values double values All of these

5. The equality operator is represented by

:= .EQ. = ==

6. Operators have hierarchy. It is used to know which operator

is most

importantis used first is faster

operates on

large numbers

7. The bitwise AND operator is used for

Masking Comparison Division Shifting bits

8. The bitwise OR operator is used to

set the desired

bits to 1

set the desired

bits to 0divide numbers multiply numbers

9. Which of the following operator has the highest precedence?

* == => +

10. The associativity of ! operator is

Right

to LeftLeft to Right

(a) for Arithmetic and

(b) for Relational

(a) for Relational and (b)

for Arithmetic

11. Which operator has the lowest priority?

++ % + ||

12. Which operator has the highest priority?


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++ % + ||

13. Operators have precedence. A Precedence determines which operator is

fastertakes less

memoryevaluated first takes no arguments

14. Integer Division results in

Rounding

the fractionalpart

truncating thefractional part

Floating valueAn Error is

generated

15. Which of the following is a ternary operator?

? * sizeof ^

16. What will be the output of the expression 11 ^ 5?

5 6 11 None of these

17. The type cast operator is

(type) cast() // " "

18. Explicit type conversion is known as

Casting Conversion Disjunction Separation

19. The operator + in a+=4 means

a = a + 4 a + 4 = a a = 4 a = 4 + 4

20. p++ executes faster than p+1 because

p uses registersp++ is a single

instruction++ is faster than + None of these

1. Which of the following statements is true?

C Libraryfunctions provideI/O facilities

C inherent I/O

facilities

C doesnt have I/O

facilitiesBoth (a) and (c)

2. Header files in C contain

Compilercommands

Library functionsHeader

information of C

programs

Operators forfiles

3. Which pair of functions below are used for single character I/O.

Getchar() andputchar() Scanf() andprintf() Input() andoutput() None of these

4. The printf() function retunes which value when an error occurs?

Positive

valueZero Negative value None of these

5. Identify the wrong statement

putchar(65) putchar('x') putchar("x") putchar('\n')


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6. Which of the following is charecter oriented console I/O function?

getchar()and putchar()

gets() andputs()

scanf() and printf() fgets() and fputs()

7. The output of printf("%u", -1) is

-1 minimum intvalue

maxium int value Error message

8. An Ampersand before the name of a variable denotes

Actual ValueVariable

NameAddress

DataType

9. Symbolic constants can be defined using

# define const symbolsNone

of these

10. Null character is represented by

\n \0 \o \e11. Which header file is essential for using strcmp() function?

string.h strings.h text.h strcmp.h

12. malloc() function used in dynamic allocation is available in which header file?

stdio.h stdlib.h conio.h mem.h

13. File manipulation functions in C are available in which header file?

streams.h stdio.h stdlib.h files.h

14. C supports how many basic looping constructs

2 3 4 615. A statement differs from expression by terminating with a

; : NULL .

16. What should be the expression return value for a do-while to terminate

1 0 -1 NULL

17. Which among the following is a unconditional control structure

do-while if-else goto for

18. continue statement is used

to go to the nextiteration in a loop

come out of aloop

exit and returnto the mainfunction

restartsiterations frombeginning of loop

19. Which operator in C is called a ternary operator

if..then ++ ? ()

20. Which of the following header file is required for strcpy() function?

string.h strings.h files.h strcpy()

1. The meaning of conversion character for data input is


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Data item is a

long integer

Data item is an

unsigned decimalinteger

Data item is a

short integerNone of the above

2. The conversion characters for data input means that the data item is

An unsigned decimalinteger

A short integerA

hexadecimal

integer

A string followed bywhite space

3. An expression contains relational, assign. ment and arithmetic operators. If Parenthesisare not present, the order will be

Assignment,

arithmetic, relational

Relational,

arithmetic,

assignment

Assignment,

relational, arithmetic

Arithmetic, relational,

assignment

4. Which of the following is a key word is used for a storage class

printf external auto scanf

5. In the C language 'a represents

a digit an integer a character a word

6. The number of the relational operators in the C language is

Four Six Three One

7. A compound statement is a group of statements included between a pair of

double quote curly braces parenthesis a pair of /s

8. A Link is

a compileran active

debugger

a C interpretera analyzing tool

in C9. The continue command cannot be used with

for switch do while

10. In C, a Union is

memory location memory store memory screen None of these

11. When the main function is called, it is called with the arguments

argc argv None of these both a & b

12. A multidimensional array can be expressed in terms of

array of pointersrather than as pointersto a group ofcontiguous array

array without thegroup of contiguous

array

data type arrays None of these

13. C allows arrays of greater than two dimensions, who will determined this

programmer compiler parameter None of these

14. A pointer to a pointer in a form of

multipleindirection

a chain ofpointers

both a and b None of these


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15. Pointers are of

integer datatype

character datatype

unsigned integerdata types

None of these

16. Maximum number of elements in the array declaration int a[5][8] is

28 32 35 4017. If the size of the array is less than the number of initializers then,

Extra values are

being ignored

Generates an

error message

Size of Array is

increased

Size is neglected

when values are given

18. Array subscripts in C always start at

-1 1 0Value provided by

user

19. A Structure

can be read as a

single entity

cannot be read as

a single entity

can be displayed

as a single entity

has member

variables that cannotbe read individually

20. Identify the invalid pointer arithmetic

Addition of float

value to a pointer

Comparision of

pointers that do notpoint to the element

of the same array

Subtracting an

integer from a pointer

Assigning thevalue 0 to a pointer

variable

Q1. What will be the output of the following arithmetic expression ?

5+3*2%10-8*6

a) -37 b) -42 c) -32 d) -28

Q2. What will be the output of the following statement ?

int a=10; printf("%d &i",a,10);a) error b) 10 c) 10 10 d) none of these

Q3. What will be the output of the following statement ?

printf("%X%x%ci%x",11,10,'s',12);

a) error b) basc c) Bas94c d) none of these

Q4. What will be the output of the following statements ?

int a = 4, b = 7,c; c = a = = b; printf("%i",c);

a) 0 b) error c) 1 d) garbage value

Q 5. What will be the output of the following statements?

int a = 5, b = 2, c = 10, i = a>b

void main(){ printf("hello"); main(); }

a) 1 b) 2 c) infinite number of times d) none of these

Q7. What will be the output of the following statements?

int x[4] = {1,2,3}; printf("%d %d %D",x[3],x[2],x[1]);

a) 03%D b) 000 c) 032 d) 321

Q8. What will be the output of the following statement?

printf( 3 + "goodbye");

a) goodbye b) odbye c) bye d) dbye


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long int a = scanf("%ld%ld",&a,&a); printf("%ld",a);

a) error

b) garbage value

c) 0

d) 2

Q10. What will be the output of the following program ?

#include

void main()

{ int a = 2;

switch(a)

{ case 1:

printf("goodbye"); break;

case 2:

continue;

case 3:

printf("bye");

}

}

a) error b) goodbye c) bye d) byegoodbye


int i = 1,j; j=i--- -2; printf("%d",j);

a) error b) 2 c) 3 d) -3

Q12. What will be the output of following program ?

#include

main()

{

int x,y = 10;

x = y * NULL;

printf("%d",x);

}

a) error b) 0 c) 10 d) garbage value

Q13. What will be the output of following statements ?

char x[ ] = "hello hi"; printf("%d%d",sizeof(*x),sizeof(x));

a) 88 b) 18 c) 29 d) 19


int a=5,b=6,c=9,d; d=(ac?1:2):(c>b?6:8)); printf("%d",d);

a) 1 b) 2 c) 6 d) 8


int i = 3;

printf("%d%d",i,i++);

a) 34 b) 43 c) 44 d) 33

Q16. What will be the output of the following program ?

#include


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void main()

{

int a = 36, b = 9;

printf("%d",a>>a/b-2);

}

a) 9 b) 7 c) 5 d) none of these

Q17)

int testarray[3][2][2] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12};

What value does testarray[2][1][0] in the sample code above contain?

a) 11b) 7c) 5d) 9

Q18)

void main()

{

int a=10,b=20;

char x=1,y=0;

if(a,b,x,y)

{

printf("EXAM");

}

}

What is the output?

1) XAM is printed 2) exam is printed 3) Compiler Error 4) Nothing is printed

Q19)

What is the output of the following code?

#include

void main()

{

int s=0;

while(s++

# define a 10

main()

{

printf("%d..",a);

foo();

printf("%d",a);

}

void foo()

{

#undef a

#define a 50

}


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1) 10..10 2) 10..50 3) Error 4) 0

Q21)

main()

{

struct

{

int i;

}xyz;

(*xyz)->i=10;

printf("%d",xyz.i);

}

What is the output of this program?

1) program will not compile 2) 10 3) god only knows 4) address of I

Q22)

What would be the output of the following program?

#include

main()

{

char str[]="S\065AB";

printf("\n%d", sizeof(str));

}

1) 7 2) 6 3) 5 4) error

Q23)

What will be the value of `a` after the following code is executed

#define square(x) x*x

a = square(2+3)

1) 25 2) 13 3) 11 4) 10

Q24)

#include

void func()

{

int x = 0;

static int y = 0;

x++; y++;

printf( "%d -- %d\n", x, y );

}


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int main()

{

func();

func();

return 0;

}

What will the code above print when it is executed?

1)

1 -- 1

1 -- 1

2)

1 -- 1

2 -- 1

3)1 -- 1

2 -- 2

4)

1 -- 1

1 -- 2

Q25)

long factorial (long x){

????

return x * factorial(x - 1);

}

With what do you replace the ???? to make the function shown above return the correct answer?

1) if (x == 0) return 0;

2) return 1;

3) if (x >= 2) return 2;

4) if (x


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int i = 4;

switch (i)

{

default: ;

case 3:

i += 5;

if ( i == 8)

{

i++;

if (i == 9) break;

i *= 2;

}

i -= 4;

break;

case 8:

i += 5;

break;

}

printf("i = %d\n", i);

What will the output of the sample code above be?

1) i = 5 2) i = 8 3) i = 9 4) i = 10

1 What is the output of:main( )

{

floata = 5, b = 2 ;

intc ;

c = a % b ;

printf( "%d", c ) ;

}

A. 1

B. 0

C. 2

D. Compile Time Error

2 Find the output of the following program?

#includevoidmain( )

{

printf( "nn \n\n nn\n") ;

printf( "nn /n/n nn/n") ;

}

A. nn

nn

nn /n/n nn/n


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B. nn

nn

nn /n

nn/n

C. nn

nn

nn /n

nn

D. Error "/n" not recognized

3 What is the output of the following programs:Program 1:

#include

voidmain()

{

printf("%d %d %d %d ",65,065,0x65,0X65);

}

Program 2:

#include

voidmain()

{

printf("%d %o %x",65,65,65);

}

A. 65 65 65 65 and 65 53 101

B. Compiler Error, Compiler Error

C. 65 53 101 101 and 65 101 41

D. None of the Above

1 Identify which are declarations? (select 2)

A. double pow(double,double);

B. float squar(float a){}

C. float b;

D. extern int a;

2 One c program is written in 2 files/*Program1.c*/

intx=10

/*Program2.c*/#include "Program1.c"

intmain()

{

externintx;

printf("x : %d",x);

}

In Program2.c statement extern int x; is not needed.

A. True


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B. False

3 A function can have several declaration, but only one definition?

A. True

B. False

4 Which of the following is the correct output of the program?#include

intmain()

{

inta[5]={9,10};

printf("%d,%d",a[1],a[2]);

return0;

}

A. 9, 10

B. 10, 0

C. 0, 0

D. 0, 9

5 What is the output of following program?#include

intmain()

{

void*ptr1, *ptr2, x;

inty;

x = 100;

y = 200;

ptr1 = &x;

ptr2 = &y;

printf("%d", *ptr1);

pritnf("%d", *ptr2);

return0;

}

A. error: variable or field x declared void

B. 100,200

C. garbage value , 200

D. None of above

6 Guess the Output.#include

intmain()

{

enumstatus { pass, fail, atkt};

enumstatus stud1, stud2, stud3;

stud1 = pass;

stud2 = atkt;

stud3 = fail;

printf("%d, %d, %d\n", stud1, stud2, stud3);

return0;

}


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A. 0, 1, 2

B. 1, 2, 3

C. 0, 2, 1

D. 1, 3, 2

7 Which of the following declarations are correct?

A. short i=10;

B. static i=10;

C. unsigned i=10;

D. const i=10;

1

What is the output of the following program?#includevoidmain()

{

inta=8,b=4;

intc,d;

c= a>6;

d= a>2 && b==3;

printf("c = %d, d= %d",c,d);

}

A. c= 1, d= 0

B. c= 0, d= 0

C.c= 0, d= 1

D. Compilation Error

2 What is the output of the following program?#include

voidmain()

{

inti=10;

switch(i)

{

case1: printf(" i=1");

break;



break;case12: printf(" i=12");

}

}

A. i=10 i=11 i=12

B. i=1 i=10 i=11 i=12

C. i=10 i=11


3 What is the output of the following program?


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#include

voidmain()

{

charc = 'c';

switch(c)

{

case'a': printf("inside case a,");

break;case'b': printf("inside case b,");

break;

case'c': printf("inside case c,");

case'd': printf("inside case d,");

continue;

default: printf("inside default case");

break;

}

}

A. inside case c, inside case d

B. inside case c

C. inside case c, inside case d, inside default case



voidmain()

{

charc= 'a';

switch(c)

{

case65 : printf("inside case A,");

break;

case97 : printf("inside case a,");

break;default: printf("inside default case");

break;

}

}

A. inside default case

B. inside case a,

C. Compilation Error

D. inside case A,


voidmain()

{

inta=8,b=4;

intc;

c=(a


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C. c= 0, b= 4



voidmain()

{inta=8,b=4,c;

c= ((a=50)

y=15;

printf("x=%d, y=%d , !x=%d, !z=%d", x,y,!x,!z);

}

A. =10, y=15, !x=10, !z=1

B. x=10, y=5, !x=1, !z=0

C. x=10, y=5, !x=0, !z=1



voidmain()

{

inta=1,b=20;

if(a && b>5 > 25)

printf("Yo!");

else

printf("Baby!");

}

A. Yo!

B. Baby!

C. Compilation Error

D. Run Time Error


voidmain()

{

inti=1,j=1;

while(++i < 10)

printf("%d ",i);


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printf("\n");

while(j++ < 10)

printf("%d ",j);

}

A. 1 2 3 4 5 6 7 8 9 10

1 2 3 4 5 6 7 8 9 10

B. 1 2 3 4 5 6 7 8 91 2 3 4 5 6 7 8 9 10

C. 2 3 4 5 6 7 8 9

2 3 4 5 6 7 8 9 10

D. 2 3 4 5 6 7 8 9

1 2 3 4 5 6 7 8 9 10


voidmain(){

inti=1;

switch(i


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#include

voidmain()

{

intx=1;

switch(x)

{

casex: printf("case 1"); break;

case2: printf("case 2"); break;case3: printf("case 3"); break;

case4: printf("case 4"); break;

}

}

A. case 1

B. case 1

case 2

case 3

case 4

C. Compile Time Error


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c lang objective type questions