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C Quiz
- 1. Anjuman College of Engineering and Technology, Sadar, Nagpur. Computer Science and engineering department presents Envisage’13 “Over C War” By, Shabina Parveen Powerpoint Templates Page 1
- 2. RULES Each Easy level question consists of 5 marks. Each Medium level question consists of 10 marks Each Hard level question consists of 15 marks According to the level chosen for betting, for each correct answer plus marks & for each wrong answer respective marks will be deducted from the actual score Powerpoint Templates Page 2
- 3. Categories Easy Medium Hard Powerpoint Templates Page 3
- 4. Question Powerpoint Templates Page 4
- 5. Answer Dennis Ritchie… Powerpoint Templates Page 5
- 6. Categories Easy Medium Hard Powerpoint Templates Page 6
- 7. Question Would the following program give a compilation error or warning? #include<stdio.h> int main() { float I =10, *j; void *k; k = &I; j = k; printf(“%fn”, *j); return 0; } a. Yes Powerpoint Templates b. No Page 7
- 8. Answer b. No Powerpoint Templates Page 8
- 9. Categories Easy Medium Hard Powerpoint Templates Page 9
- 10. Question Predict the output: # define SQUARE(x) x*x; inline float square(float y) { return y*y; } int main() { float a = 0.5, b = 0.5, c, d; c= SQUARE (++a)l; d = square (++b); return 0; Powerpoint Templates } Page 10
- 11. Answer Output: during preprocessing the macro SQUARE gets expanded into c=++x *++x; You can notice the undesirable side effect in this macro expansion; the output is unpredictable because such side effect must not appear in inline function. Powerpoint Templates Page 11
- 12. Categories Easy Medium Hard Powerpoint Templates Page 12
- 13. Question Which of the following statement is true about the >> operator? a. It divides a positive value by a power of two. b. It multiplies a positive value by a power of two. c. It adds a positive value with a power of two. d. It subtracts from a positive value a Powerpoint Templates power of two. Page 13
- 14. Answer a. It divides a positive value by a power of two. Powerpoint Templates Page 14
- 15. Categories Easy Medium Hard Powerpoint Templates Page 15
- 16. Question would the following code compile? #include<stdio.h> int main() { int a = 10, *j; a. Yes void *k; b. no j= k = &a; j++; k++; printf(“%u %un , j, k”); return 0; Powerpoint Templates } Page 16
- 17. Answer b. No Powerpoint Templates Page 17
- 18. Categories Easy Medium Hard Powerpoint Templates Page 18
- 19. Question Predict the output: #include<stdio.h> int main() { int a[]={0,1,2,3.4}; int i , *p; for(p=arr,i=0; p+i<=arr+4 ; p++ , i++) printf(“%d”, , *(p+1)); return 0; } Powerpoint Templates Page 19
- 20. Answer Output: 024 Powerpoint Templates Page 20
- 21. Categories Easy Medium Hard Powerpoint Templates Page 21
- 22. Question Which of the following statement is correct? a. Int a=64<<2; b. Float a =6.42<<2; c. Double a = 3.33<<2; d. Long double a =3.67<<2; Powerpoint Templates Page 22
- 23. Answer a. Int a=64<<2; Powerpoint Templates Page 23
- 24. Categories Easy Medium Hard Powerpoint Templates Page 24
- 25. Question Would the following program give a compilation error or warning? #include<stdio.h> int main() { int *p1, i=25; a. Yes void *p2; b. no p1=&i; p2=&i; p1=p2; p2=p1; return 0; Powerpoint Templates Page 25 }
- 26. Answer b. No Powerpoint Templates Page 26
- 27. Categories Easy Medium Hard Powerpoint Templates Page 27
- 28. Question • In a file contains the line "I am a boyrn" then on reading this line into the array str using fgets(). What will str contain? • A. "I am a boyrn0" • B. "I am a boyr0" • C. "I am a boyn0" • D. "I am a boy" Powerpoint Templates Page 28
- 29. Answer C. "I am a boyn0" Powerpoint Templates Page 29
- 30. Categories Easy Medium Hard Powerpoint Templates Page 30
- 31. Question What would be the result of the expression a^a? a. 0 b. 1 c. Sum of two operands d. Multiplication of two operands Powerpoint Templates Page 31
- 32. Answer a. 0 Powerpoint Templates Page 32
- 33. Categories Easy Medium Hard Powerpoint Templates Page 33
- 34. Question Would the following program give a compilation error or warning? #include<stdio.h> int main() { float *p1,i=25.50; a. Yes char *p2; b. No p1=&i; p2=&i; return 0; } Powerpoint Templates Page 34
- 35. Answer a. Yes Powerpoint Templates Page 35
- 36. Categories Easy Medium Hard Powerpoint Templates Page 36
- 37. Question Write a program in C to display any message without using semi colon anywhere in program? Powerpoint Templates Page 37
- 38. Answer #include <stdio.h> void main() { if(printf(”Hello”)) {} NOTE: We can write the printf inside while or switch as well for same result. Powerpoint Templates Page 38
- 39. Categories Easy Medium Hard Powerpoint Templates Page 39
- 40. Question What will be the output of the code snippet given below: #include<stdio.h> Void main() { Int a =10,b =65; Printf(“%d”,a<<(a&b)); } a. 65 c. 0 d. 1 b. 10 Powerpoint Templates Page 40
- 41. Answer b. 10 Powerpoint Templates Page 41
- 42. Categories Easy Medium Hard Powerpoint Templates Page 42
- 43. Question Predict the output: #include<stdio.h> int main() { int a[]={10,20,30,40,50}; int j; for(j=0;j<5;j++) { printf(“%dn”, *a); a++; } return 0; Powerpoint Templates } Page 43
- 44. Answer Output: Error message: Lvalue required in function main Powerpoint Templates Page 44
- 45. Categories Easy Medium Hard Powerpoint Templates Page 45
- 46. Question #include<stdio.h> int main() { char str[20] = "Hello"; char *const p=str; *p='M'; printf("%sn", str); return 0; Powerpoint Templates } Page 46
- 47. Answer MELLO Powerpoint Templates Page 47
- 48. Categories Easy Medium Hard Powerpoint Templates Page 48
- 49. Question Who were the two main individuals involved in development of K&R standard for C language? a. Dennis Ritchie & John Von Neumann b. Brian Kernighan & Dennis Ritchie c. Grace Hopper & Niklaus Wirth d. Dennis Ritchie & Bjarne Stroustroup Powerpoint Templates Page 49
- 50. Answer Brian Kernighan and Dennis Ritchie • Powerpoint Templates Page 50
- 51. Categories Easy Medium Hard Powerpoint Templates Page 51
- 52. Question Predict the output: #include<stdio.h> int main() { float a[]={13.24, 1.5, 1.5, 5.4, 3.5}; float *j, *k; j=a; k=a+4; i = j*2; k =k/2; printf(“%f %fn”, *j. *k); return 0; Powerpoint Templates Page 52 }
- 53. Answer Output: Error message: illegal use of pointer in function main Powerpoint Templates Page 53
- 54. Categories Easy Medium Hard Powerpoint Templates Page 54
- 55. Question void main(){ int i=10; static int x=i; if(x==i) printf("Equal"); else if(x>i) printf("Greater than"); else printf("Less than"); Powerpoint Templates Page 55
- 56. Answer Compiler error Powerpoint Templates Page 56
- 57. Categories Easy Medium Hard Powerpoint Templates Page 57
- 58. Question Which of the following utility is used for compiling and linking the program? a. Make b. Makefile c. Compiler d. linker Powerpoint Templates Page 58
- 59. Answer a. Make Powerpoint Templates Page 59
- 60. Categories Easy Medium Hard Powerpoint Templates Page 60
- 61. Question Would the following program give a compilation error or warning? #include<stdio.h> int main() { char a[]=”sunstroke”; a. Yes char *p = “coldwave”; b. No a = “coldwave”; p = “sunstroke”; printf(“%s %sn”, a, p); return 0; } Powerpoint Templates Page 61
- 62. Answer b. No Powerpoint Templates Page 62
- 63. Categories Easy Medium Hard Powerpoint Templates Page 63
- 64. Question Write a c program to add two numbers without add operator? Powerpoint Templates Page 64
- 65. Answer #include <stdio.h> #include <conio.h> int main(){ int a=1,b=2,c; c=a-(-b); printf(“%d”,c); getch(); return 0; Powerpoint Templates } Page 65
- 66. Categories Easy Medium Hard Powerpoint Templates Page 66
- 67. Question Which of the following function is used to copy data types other than strings from one variable to another? a. memcpy() c. objcpy() b. datacpy() d. strcpy() Powerpoint Templates Page 67
- 68. Answer a. memcpy() Powerpoint Templates Page 68
- 69. Categories Easy Medium Hard Powerpoint Templates Page 69
- 70. Question Predict the output: #include<stdio.h> #include<string.h> int main() { char s[]=”rendezvous !”; printf(“%dn”, *(s + strlen (s))); return 0; Powerpoint Templates } Page 70
- 71. Answer Output: 0 Powerpoint Templates Page 71
- 72. Categories Easy Medium Hard Powerpoint Templates Page 72
- 73. Question What will be the output of the code snippet given below? #include<stdio.h> Void main() { Char ch = ‘A’; Printf(“%d”, ch | ‘A’ & ‘Z’); } Powerpoint Templates Page 73
- 74. Answer 65 Powerpoint Templates Page 74
- 75. Categories Easy Medium Hard Powerpoint Templates Page 75
- 76. Question Consider the following program segment: int a=35; int *b; b= &a; A. b contains address of an int B. value at address contained in b is an int. C. b is a pointer which points in the direction of an int. Powerpoint Templates D. all of the above Page 76
- 77. Answer d. all of the above Powerpoint Templates Page 77
- 78. Categories Easy Medium Hard Powerpoint Templates Page 78
- 79. Question Predict the output: #include<stdio.h> #include<string.h> int main() { printf(5 + “fascimile”); return 0; } Powerpoint Templates Page 79
- 80. Answer Output: mile Powerpoint Templates Page 80
- 81. Categories Easy Medium Hard Powerpoint Templates Page 81
- 82. Question Predict the output: #define call(x) #x void main(){ printf("%s",call(c/c++)); } Powerpoint Templates Page 82
- 83. Answer c/c++ Powerpoint Templates Page 83
- 84. Categories Easy Medium Hard Powerpoint Templates Page 84
- 85. Question In which header file is the NULL macro defined? a. <stdio.h> b. <stddef.h> c. # define d. All of the above Powerpoint Templates Page 85
- 86. Answer c. All of the above Powerpoint Templates Page 86
- 87. Categories Easy Medium Hard Powerpoint Templates Page 87
- 88. Question Predict the output: #include<stdio.h> int main() { int arr[12]; printf(“%dn”, sizeof(arr)); return 0; } Powerpoint Templates Page 88
- 89. Answer Output: 24 Powerpoint Templates Page 89
- 90. Categories Easy Medium Hard Powerpoint Templates Page 90
- 91. Question struct marks{ int p:3; int c:3; int m:2; }; void main() { struct marks s={2,-6,5}; printf("%d %d %d",s.p,s.c,s.m); Powerpoint Templates Page 91
- 92. Answer 221 221 Powerpoint Templates Page 92
- 93. Categories Easy Medium Hard Powerpoint Templates Page 93
- 94. Question Is the NULL pointer same as an uninitialized pointer ? a. Yes b. No Powerpoint Templates Page 94
- 95. Answer b. No Powerpoint Templates Page 95
- 96. Categories Easy Medium Hard Powerpoint Templates Page 96
- 97. Question What is the current version of standard for c language was approved in December 2011? Powerpoint Templates Page 97
- 98. Answer C11 Powerpoint Templates Page 98
- 99. Categories Easy Medium Hard Powerpoint Templates Page 99
- 100. Question Predict the output: void main(){ int a=25; clrscr(); printf("%o %x",a,a); getch(); } Powerpoint Templates Page 100
- 101. Answer 31 19 Powerpoint Templates Page 101
- 102. Categories Easy Medium Hard Powerpoint Templates Page 102
- 103. Question State true or false: Multiplication of a pointer and an unsigned integer is allowed a. True b. false Powerpoint Templates Page 103
- 104. Answer b. False Powerpoint Templates Page 104
- 105. Categories Easy Medium Hard Powerpoint Templates Page 105
- 106. Question • In which numbering system can the binary number 1011011111000101 be easily converted to? A. Decimal system B. Hexadecimal system C. Octal system D. No need to convert Powerpoint Templates Page 106
- 107. Answer Hexadecimal system Powerpoint Templates Page 107
- 108. Categories Easy Medium Hard Powerpoint Templates Page 108
- 109. Question Predict the output: void main() { int a=-12; a=a>>3; printf("%d",a); } Powerpoint Templates Page 109
- 110. Answer -2 Powerpoint Templates Page 110
- 111. Categories Easy Medium Hard Powerpoint Templates Page 111
- 112. Question Does mentioning the array name gives the base address in all the contexts? a. Yes b. no Powerpoint Templates Page 112
- 113. Answer b. No Powerpoint Templates Page 113
- 114. Categories Easy Medium Hard Powerpoint Templates Page 114
- 115. Question • What is the difference between #include <> and #include “ ” ? Powerpoint Templates Page 115
- 116. Answer #include <> ---- > specifically used for built in header file. #include ” ” ----->specifically used for user defined/created n header files. Powerpoint Templates Page 116
- 117. Categories Easy Medium Hard Powerpoint Templates Page 117
- 118. Question Assuming, integer is 2 byte, What will be the output of the program? #include<stdio.h> int main() { printf("%xn", -1>>1); return 0; } Powerpoint Templates Page 118
- 119. Answer ffff Powerpoint Templates Page 119
- 120. Categories Easy Medium Hard Powerpoint Templates Page 120
- 121. Question A pointer to a block of memory is effectively same as the array a. True b. False Powerpoint Templates Page 121
- 122. Answer a. True Powerpoint Templates Page 122
- 123. Categories Easy Medium Hard Powerpoint Templates Page 123
- 124. Question Find the ERROR: void main() { int const * p=5; printf("%d",++(*p)); } Powerpoint Templates Page 124
- 125. Answer Compiler error: Cannot modify a constant value. Powerpoint Templates Page 125
- 126. Categories Easy Medium Hard Powerpoint Templates Page 126
- 127. Question Predict the output: #include "string.h" void main(){ clrscr(); printf("%d %d",sizeof("string"),strlen("string"); getch(); } Powerpoint Templates Page 127
- 128. Answer 76 Powerpoint Templates Page 128
- 129. Categories Easy Medium Hard Powerpoint Templates Page 129
- 130. Question What does the following declaration mean: a. index of the pointer variable b. memory location as 10 c. ptr is a pointer to an array of 10 integers d. none of the above Powerpoint Templates Page 130
- 131. Answer c. ptr is a pointer to an array of 10 integers Powerpoint Templates Page 131
- 132. Categories Easy Medium Hard Powerpoint Templates Page 132
- 133. Question Two different operators would always have different Associativity. A. Yes B. No Powerpoint Templates Page 133
- 134. Answer NO Powerpoint Templates Page 134
- 135. Categories Easy Medium Hard Powerpoint Templates Page 135
- 136. Question Predict the output: #include<stdio.h> void main() { int i; For(i=0;i++<10;) Printf(“%dn”,i); } Powerpoint Templates Page 136
- 137. Answer 2 3 4 5 6 7 8 9 10 Powerpoint Templates Page 137
- 138. Categories Easy Medium Hard Powerpoint Templates Page 138
- 139. Question Predict the output: #include<stdio.h> int main() { printf(“%c”, “abcdefgh”[4]); return 0; } Powerpoint Templates Page 139
- 140. Answer 0 Powerpoint Templates Page 140
- 141. Categories Easy Medium Hard Powerpoint Templates Page 141
- 142. Question • Data written into a file using fwrite() can be read back using fscanf() A. True B. False Powerpoint Templates Page 142
- 143. Answer FALSE Powerpoint Templates Page 143
- 144. Categories Easy Medium Hard Powerpoint Templates Page 144
- 145. Question What the following code will display? void main() { printf("%s",__DATE__); } Powerpoint Templates Page 145
- 146. Answer Current system DATE Powerpoint Templates Page 146
- 147. Categories Easy Medium Hard Powerpoint Templates Page 147
- 148. Question Predict the output: #include<stdio.h> int main() { char str[7] = “strings”; printf(“%sn” , str); return 0; } Powerpoint Templates Page 148
- 149. Answer Output: cannot predict Powerpoint Templates Page 149
- 150. Categories Easy Medium Hard Powerpoint Templates Page 150
- 151. Question What do the functions atoi()? A. is a macro that converts integer to character. B. It converts an integer to string C. It converts a floating point number to string Powerpoint Templates Page 151
- 152. Answer is a macro that converts integer to character Powerpoint Templates Page 152
- 153. Categories Easy Medium Hard Powerpoint Templates Page 153
- 154. Question Predict the output: void main() { printf("%s","c" "question" "bank"); } A. c question bank B. bank C. cquestionbank D. Compiler error Powerpoint Templates Page 154
- 155. Answer cquestionbank Powerpoint Templates Page 155
- 156. Categories Easy Medium Hard Powerpoint Templates Page 156
- 157. Question Would the following code compile successfully? # include<stdio.h> int main() { printf(“%c”, 7[“sundaram”]); return 0; } Powerpoint Templates Page 157
- 158. Answer Ans: Yes Powerpoint Templates Page 158
- 159. Categories Easy Medium Hard Powerpoint Templates Page 159
- 160. Question Give the output: main() { #define a 50 printf("%d",a); } Powerpoint Templates Page 160
- 161. Answer 50 Powerpoint Templates Page 161
- 162. Categories Easy Medium Hard Powerpoint Templates Page 162
- 163. Question Give the output: void main(){ char *str="c-pointer"; printf("%*.*s",10,7,str); } (a. c-pointer b. c-pointer c. c-point Powerpoint Templates Page 163 d. cpointer null null
- 164. Answer c-point Powerpoint Templates Page 164
- 165. Categories Easy Medium Hard Powerpoint Templates Page 165
- 166. Question Which of the following statements are correct about the program? #include<stdio.h> int main() { printf("%pn", main()); return 0; } Powerpoint Templates Page 166
- 167. Answer It prints garbage values infinitely Powerpoint Templates Page 167
- 168. Categories Easy Medium Hard Powerpoint Templates Page 168
- 169. Question • Find the error: typedef struct { int data; NODEPTR link; }*NODEPTR; Powerpoint Templates Page 169
- 170. Answer Error: typedef cannot be used until is define Powerpoint Templates Page 170
- 171. Categories Easy Medium Hard Powerpoint Templates Page 171
- 172. Question • Predict the output: #include<stdio.h> void main() { int i; For(i=0;++i<=10;) Printf(“%dn”,i); } Powerpoint Templates Page 172
- 173. Answer 1 2 3 4 5 6 7 8 9 Powerpoint Templates Page 173
- 174. Categories Easy Medium Hard Powerpoint Templates Page 174
- 175. Question Predict the output: #include<stdio.h> #include<string.h> Int main { Char str1[]=“learn through IndiaBIX0.com”, str2[120]; Char *p; P=(char*)memccpy(str2,str1,’I’,strlen(str1)); *p=‘0’; Printf(“%s”,str2); Powerpoint Templates Return 0; Page 175
- 176. Answer “learn through indi” Powerpoint Templates Page 176
- 177. Categories Easy Medium Hard Powerpoint Templates Page 177
- 178. Question State true or false: • In place of the condition in a while loop structure there can be any other valid expression Powerpoint Templates Page 178
- 179. Answer True Powerpoint Templates Page 179
- 180. Categories Easy Medium Hard Powerpoint Templates Page 180
- 181. Question Predict the output: #include<stdio.h> Void main() { Char arr[7]=“NETWORK”; Printf(“%s”,arr); } Powerpoint Templates Page 181
- 182. Answer Garbage value Powerpoint Templates Page 182
- 183. Categories Easy Medium Hard Powerpoint Templates Page 183
- 184. Question START Initialize False Test True Body of loop Stop increement Powerpoint Templates • What does the above flowchart shows?184 Page
- 185. Answer Shows the flowchart of FOR LOOP Powerpoint Templates Page 185
- 186. Categories Easy Medium Hard Powerpoint Templates Page 186
Notes de l'éditeur
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