Ccp Objectives

8/3/2019 Ccp Objectives

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S.D.COLLEGE OF ENGG. & TECH., MUZAFFARNAGAR COMPUTER CONCEPT & PROGRAMMING IN ‘C’ (ECS-101/ 201)

OBJECTIVE QUESTION BANK

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

High Level Low Level Middle Level Machine Level

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

DOS Windows Unix All 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 Constants All of the above

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

0 to 256-32768 to

+32767

-65536 to

+65536No specific range

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 b None of these

14. String constants should be enclosed between ___

Single quotes Double quotes Both a and b None of these

15. Which of the following is invalid?

‘’ “ “ ‘a’ ‘abc’

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

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

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



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

Assignment Increment Logical Rational

23. The operator & is used for

Bitwise AND Bitwise OR Logical AND Logical OR

24. The operator / can be applied to

integer values float values double values All of these

25. The equality operator is represented by

:= .EQ. = ==

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

is most

importantis used first is faster

operates on

large numbers

27. The bitwise AND operator is used for

Masking Comparison Division Shifting bits

28. The bitwise OR operator is used to

set the desiredbits to 1

set the desiredbits to 0

divide numbersmultiply

numbers

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

* == => +

30. The associativity of ! operator is

Right to Left Left to Right

(a) for

Arithmetic and (b)for Relational

(a) for Relational

and (b) for Arithmetic

31. Which operator has the lowest priority?

++ % + ||



32. Which operator has the highest priority?

++ % + ||

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

fastertakes less

memoryevaluated first

takes noarguments

34. Integer Division results in

Rounding the

fractional part

truncating the

fractional partFloating value

An Error is

generated

35. Which of the following is a ternary operator?

? * sizeof ^

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

5 6 11 None of these

37. The type cast operator is

(type) cast() // " "

38. Explicit type conversion is known as

Casting Conversion Disjunction Separation

39. The operator + in a+=4 means

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

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

p uses registersp++ is a single

instruction

++ is faster than

+None of these

41. Which of the following statements is true?

C Library

functions provide I/Ofacilities

C inherent I/Ofacilities

C doesn’t haveI/O facilities

Both (a) and (c)



42. Header files in C contain

Compiler

commandsLibrary functions

Headerinformation of C

programs

Operators for

files

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

Getchar() and

putchar()

Scanf() and

printf()

Input() and

output()None of these

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

Positive value Zero Negative value None of these

45. Identify the wrong statement

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

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

getchar() and

putchar()gets() and puts()

scanf() and

printf()

fgets() and

fputs()

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

-1minimum int

value

maxium int

valueError message

48. An Ampersand before the name of a variable denotes

Actual Value Variable Name Address Data Type

49. Symbolic constants can be defined using

# define const symbols None of these

50. Null character is represented by

\n \0 \o \e

51. Which header file is essential for using strcmp() function?

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

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



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

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

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

54. C supports how many basic looping constructs

2 3 4 6

55. A statement differs from expression by terminating with a

; : NULL .

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

1 0 -1 NULL

57. Which among the following is a unconditional control structure

do-while if-else goto for

58. continue statement is used

to go to the nextiteration in a loop

come out of aloop

exit and returnto the main function

restarts

iterations frombeginning of loop

59. Which operator in C is called a ternary operator

if..then ++ ? ()

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

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

61. The meaning of conversion character for data input is

Data item is along integer

Data item is an

unsigned decimalinteger

Data item is ashort integer

None of theabove

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



An unsigneddecimal integer

A short integerA hexadecimal

integerA string followed

by white space

63. An expression contains relational, assign. ment and arithmetic operators. If

Parenthesis are not present, the order will be

Assignment,

arithmetic, relational

Relational,arithmetic,

assignment

Assignment,

relational, arithmetic

Arithmetic,relational,

assignment

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

printf external auto scanf

65. In the C language 'a’ represents

a digit an integer a character a word

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

Four Six Three One

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

double quote curly braces parenthesis a pair of /’s

68. A Link is

a compileran active

debuggera C interpreter

a analyzing tool

in C

69. The continue command cannot be used with

for switch do while

70. In C, a Union is

memory location memory store memory screen None of these

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

argc argv None of these both a & b

72. A multidimensional array can be expressed in terms of



array of pointersrather than as

pointers to a group

of contiguous array

array without

the group of

contiguous array

data type arrays None of these

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

programmer compiler parameter None of these

74. A pointer to a pointer in a form of

multiple

indirection

a chain of

pointersboth a and b None of these

75. Pointers are of

integer data typecharacter data

typeunsigned integer

data typesNone of these

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

28 32 35 40

77. 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 neglectedwhen values are

given

78. Array subscripts in C always start at

-1 1 0Value provided

by user

79. A Structure

can be read as asingle entity

cannot be readas a single entity

can be displayedas a single entity

has membervariables that cannotbe read individually

80. Identify the invalid pointer arithmetic

Addition of floatvalue to a pointer

Comparision of

pointers that do notpoint to the element

of the same array

Subtracting aninteger from a

pointer

Assigning thevalue 0 to a pointer

variable



81. C programs are converted into machine language with the help of

(1) An Editor (2) A compiler

(3) An operating system

(4) None of the above

82. The real constant in C can be expressed in which of the following forms

(1) Fractional form only(2) Exponential form only

(3) ASCII form only

(4) Both fractional and exponential forms

83. A character variable can at a time store

(1) 1 character

(2) 8 characters

(3) 254 characters(4) None of the above

84. Which of the following is NOT a character constant

(1) ‘Thank You’

(2) ‘Enter values of P, N, R’

(3) ‘23.56E-03’(4) All the above

85. Which of the following statement is wrong(1) mes = 123.56 ;

(2) con = 'T' * 'A' ;

(3) this = 'T' * 20 ;(4) 3 + a = b ;

86. Which of the following shows the correct hierarchy of arithmetic operators in C(1) **, * or /, + or -

(2) **, *, /, +, -

(3) **, /, *, +, -

(4) / or *, - or +

87. In b = 6.6 / a + 2 * n ; which operation will be performed first?

(1) 6.6 / a(2) a + 2

(3) 2 * n

(4) Depends upon compiler

88. Which of the following is allowed in a C Arithmetic instruction

(1) [ ]

(2) { }(3) ( )




89. Which of the following statements is false

(1) Each new C instruction has to be written on a separate line(2) Usually all C statements are entered in small case letters

(3) Blank spaces may be inserted between two words in a C statement

(4) Blank spaces cannot be inserted within a variable name

90. Hierarchy decides which operator

(1) is most important(2) is used first

(3) is fastest

(4) operates on largest numbers

91. An integer constant in C must have:

(1) At least one digit

(2) At least one decimal point

(3) A comma along with digits(4) Digits separated by commas

92. A character variable can never store more than

(1) 32 characters

(2) 8 characters

(3) 254 characters(4) 1 character

93. In C a variable cannot contain

(1) Blank spaces

(2) Hyphen(3) Decimal point

(4) All the above

94. Which of the following is FALSE in C

(1) Keywords can be used as variable names

(2) Variable names can contain a digit

(3) Variable names do not contain a blank space(4) Capital letters can be used in variable names

95. In C, Arithmetic instruction cannot contain(1) variables

(2) constants

(3) variable names on right side of =(4) constants on left side of =

96.Which of the following shows the correct hierarchy of arithmetic operations in C

(1) / + * -(2) * - / +

(3) + - / *



(4) * / + -

97. What will be the value of d if d is a float after the operation d = 2 / 7.0?(1) 0

(2) 0.2857

(3) Cannot be determined(4) None of the above

98. An expression contains relational operators, assignment operators and

arithmetic operators. In the absence of parentheses, they will be

evaluated in which of the following order:(1) assignment, relational, arithmetic

(2) arithmetic, relational, assignment(3) relational, arithmetic, assignment(4) assignment, arithmetic, relational

99. The break statement is used to exit from:

(1) an if statement(2) a for loop

(3) a program(4) the main( ) function

100. A do-while loop is useful when we want that the statements within theloop must be executed:

(1) Only once

(2) At least once(3) More than once(4) None of the above

101.In what sequence the initialization, testing and execution of body is donein a do-while loop

(1) Initialization, execution of body, testing

(2) Execution of body, initialization, testing(3) Initialization, testing, execution of body


102.

Which of the following statement is used to take the control to the beginning of the loop?

(1) exit(2) break

(3) continue(4) None of the above

103. What would happen if you try to put so many values into an array when

you initialize it that the size of the array is exceeded?

(1) nothing



(2) possible system malfunction(3) error message from the compiler (4) other data may be overwritten

104. In an array int arrI12I the word arr represents the a _______ of

the array

105. What would happen if you put too few elements in an array when youinitialize it?

(1) nothing

(2) possible system malfunction(3) error message from the compiler

(4) unused elements will be filled with 0’s or garbage

106 .What would happen if you assign a value to an element of an array whose

subscript exceeds the size of the array?

(1) the element will be set to 0

(2) nothing, it’s done all the time

(3) other data may be overwritten(4) error message from the compiler

1 0 7 . When you pass an array as an argument to a function, what actually gets

passed?

(1) address of the array(2) values of the elements of the array

(3) address of the first element of the array(4) number of elements of the array

108. Which of these are reasons for using pointers?

(1) To manipulate parts of an array(2) To refer to keywords such as for and if

(3) To return more than one value from a function(4) To refer to particular programs more conveniently

109. If you don’t initialize a static array, what would be the elements set

to?(1) O(2) an undetermined value

(3) a floating point number (4) the character constant ‘\O‘

110. To receive the string “We have got the guts, you get the glory!!“ inan array c h ar s t r [ 100 ] which of the following functions would you use?

(1) scanf ( “%s“, str ) ;(2) gets ( str ) ;



(3) getchar( str ) ;(4) fgetchar ( str ) ;

111. The format string of a printf( ) function can contain:

(1) Characters, format specifications and escape sequences(2) Character, integers and floats

(3) Strings, integers and escape sequences(4) Inverted commas, percentage sign and backslash character

112. The C language terminator is

(1) semicolon(2) colon

(3) period

(4) exclamation mark

113. int x = 0;

for (x=1;x<4;x++);printf(“x=%d \n”,x);

What will be printed when the sample code above is executed?

a) x = 0 b) x = 1 c) x = 3

d) x = 4 e) x = 5

114. 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 above sample code?

a) i = 5 b) i = 8 c) i = 9 d) i = 10 e) i = 18

115. According to the C specification.what are the respective minimum sizes (in bytes) of the

following three data types: short; int ; and long?



a) 1,2,2 b) 1,2,4c) 1,2,8 d) 2,2,4 e) 2,4,8

116. int x = 2*3 + 4*5;

What value will x contain in the sample code above?

a) 22 b) 26 c) 46 d) 50 e) 70

117. predicted the output of the following code :

main()

{

int i=012;

int j=034;

int k=056;

printf(“i= %d\n”,i);

printf(“j= %d\n”,j);

printf(“k= %d\n”,k);

}

a) i=12 j=34 k=56 b) i=24 j=68 k=112c) i=3 j=28 k=46 d) i=10 j=28 k=46

118. The operator !, falls under the category of ----------- operators.

a) Conditional b) Unary

c) Modulo d) Boolean complement

119. predicted the output of the following code :

main()

{int I=16, j= 17;

i=i>>1;

j=j>>1;

printf(“i= %d\n”,I);

printf(“j= %d\n”,j);

}

a) i=8 j=8 b) i=7 j=7 c) i=8 j=9 d) i=7 j=8

120. In which type of the loop,is the inner loop is executed completely for every execution of the

outer loop?

a) do…while b) if c) Nested d) for

121. Which one is NOT the valid identifier?

a) _ident b) auto c) Bignumber d) g434gh

122. When applied to a variable, what does the unary “&” operator yield?

a) The variable’s address b) The variable’s right value

c) The variable’s binary form d) The variable’s value

123. void main()

{

int a=10,b=20,c=0;



if (a,b,c)

printf(“EXAM”);

else

printf(“exam”);

}What is output?

a) EXAM b) exam c) Compiler Error d) No Output

124. Header files in C contains

a) Compiler Commands b) Library Functions

c) Operators for Files d) Header Information of C Program

125. continue statement is used

a) to go to the next iteration in a loop

b) come out of a loop

c) exit & return to the main function

d) restart iteration from beginning of loop

126. Identify the correct syntax for declaring the array:a) int i= {1,2,3,4}; b) int i[4]= {1,2,3,4};

c) int i=[1,2,3,4]; d) int i[4]=[1,2,3,4];

127. If the size of the array is less than the number of initilizers then,

a) Extra values are being ignored b) Generates an error message

c) Size of array is increased d) Size is neglected

128. Array subscript in C always start at

a) -1 b) 1 c) 0 d) Value given by user

129. void main()

{int a[5]= {2,3};

printf(“%d%d%d”,a[2],a[3],a[4]);

}

a) garbage value b) 233 c) 322 d) 000

130. void main()

{

static int a[20];

int i=0;

a[i]=i+1; printf(“%d%d%d”,a[0],a[1],i);

}a) 100 b) 010 c) 001 d) 110

131. Format specifier for Hexadecimal number is

a) %d b) %O c) %X d) %U

132. The back slash character used for new line is:

a) ‘\a’ b) ‘\n’ c) ‘\b’ d) ‘\0’

133. main(){

int x=128;



printf (“%d”,1+x++);

}

(a) 128 (b) 129 (c) 130 (d) 1134. main(){

int x=2,y=6,z=6;x=y= = z;

printf(%d”, x);}(a) 2 (b) 6 (c) 1 (d) none of these

135.main(){

int i=10,m=10;

printf(“%d”, i>m?i*i:m/m,20);}

(a) 20 (b) 1 (c) 1 20 (d) 100 20

136.main(){

int x;

printf(“%d”, x=20,x=30);

printf(“%d”, x);}(a) compile time error (b) 20 30 (c) 30 30 (d) 20 20

137.The data type of the controlling statement of a switch statement cannot be of the type(a) int (b) char (c) short (d) float

138.main(){

int a=10, b=6;

if (a=3)

b++;

printf(“%d %d”, a, b++);}

(a) 10 6 (b) 10 7 (c) 3 6 (d) 3 7

139.main(){

int i=0;

for ( i=0; i<20; i++){switch(i) {

case 0: i +=5;

case 1: i +=2;

case 5: i +=5;

default : i +=4; break;}

printf (“%d ,” ,i);

}}(a) 0,5,9,13,17 (b) 5,9,13,17 (c) 12, 17, 22 (d) 16,21

140.main(){

int x = 6;switch( x ){

default : x += 2;

case 4 : x = 4;

case 5 : x++;

break;}

printf (“%d”, x);}

(a) 8 (b) 6 (c) 5 (d) 4

141.main(){

char a[10]= “hello”;



strcpy (a, ‘\0’);

printf (“%s”, a);}

(a) Null String (b) Non-Null String (c) hello (d) error

142.How long does this loop run: for ( x = 0; x = 3; x++)(a) Never (b) Three Times (c) Four Times (d) Forever

143.main()

{

int i=012;

int j=034;

int k=056;

printf(“i= %d\n”,i); printf(“j= %d\n”,j);

printf(“k= %d\n”,k);

}(a) i=12 j=34 k=56 (b) i=24 j=68 k=112(c) i=3 j=28 k=46 (d) i=10 j=28 k=46

144. C is a __________ language

(a) High Level (b) Low Level (c) Middle Level (d) Machine Level.

145. Header files in C contains(a) Compiler Commands (b) Library Functions(c) Operators for Files (d) Header Information of C Program

146. Which of the following symbol is used to denote the pre-processor statement?(a) @ (b) # (c) % (d) ;

147. How do you include a system header file called sysheader.h in a C source file?

(a) #include<sysheader.h> (b) #incl”sysheader.h”(c) #incl<sysheader.h> (d) #include sysheader.h

148. What is the range of an integer variable?(a) -32768 to 32767 (b) -32768 to 32767 (c) -128 to 127 (d) None of these

149. What is the back slash character used for backspace is:

( a) ‘\a’ (b) ‘\n’ (c) ‘\b’ (d) ‘\0’

150. The size of string variable is:

(a) 1 byte (b) 4 bytes (c) 8 bytes (d) None of these

151. Which of the following keyword is used for storage class is:

(a) printf (b) external (c) auto (d) automatic

152. C is which kind of language?

(a) Machine (b) Procedural (c) Assembly (d) Object Oriented

153 int x = 0;

for (x=1;x<4;x++);

printf(“x=%d \n”,x);

What will be printed when the sample code above is executed?

(i) x = 0 (ii) x = 1 (iii) x = 3 (iv) x = 4



154. According to the C specification.what are the respective minimum sizes (in bytes) of the

following three data types: short; int ; and long?

(i) 1,2,2 (ii) 1,2,4 (iii) 1,2,8 (iv) 2,2,4

155. Which one is NOT the valid identifier?

(i) _ident (ii) auto (iii) Bignumber (iv) g434gh

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Ccp Objectives