C Programming Quiz: Practice Exam!

50 Questions | By Proprofs3000 | Updated: Mar 21, 2022 | Attempts: 190

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C Programming Quiz: Practice Exam! - Quiz

Questions and Answers

1.

#include<stdio.h> main() { enum { abesit, abesec=4,akgec}; printf("%d %d", abesit, akgec); }
- A.
  
  0 1
- B.
  
  0 5
- C.
  
  0 4
- D.
  
  Compile error
2.

#include<stdio.h> int xstrlen(char *s) { int length = 0; while(*s!='\0') {length++; s++;} return (length); } int main() { char d[] = "DATASTRUCTURE"; printf("Length = %d\n", xstrlen(d)); return 0; }
- A.
  
  Code returns error
- B.
  
  Code returns the length 13
- C.
  
  Code returns the length 12
- D.
  
  Code returns the length 0
3.

#include <stdio.h> int main() { char a[] = { 'D, 'A', 'T', 'A' }; char* ppp = &a[0]; *ppp++; // Line 1 printf("%c %c ", *++ppp, --*ppp); // Line 2 }
- A.
  
  D T
- B.
  
  A D
- C.
  
  D A
- D.
  
  T D
4.

#include<stdio.h> Void main() { While(! printf("while loop is amazing one") ; }
- A.
  
  Compilation error
- B.
  
  While loop is amazing one
- C.
  
  Runtime error
- D.
  
  none of the above
5.

#include<stdio.h> main() { int n=8; int f(int n); printf("%d", f(n)); } int f(int n) { if(n>0) return (n+f(n-2)); }
- A.
  
  10
- B.
  
  20
- C.
  
  30
- D.
  
  Error
6.

#include<stdio.h> main() { printf(3+"Good morning "); }
- A.
  
  Good morning
- B.
  
  Morning
- C.
  
  Good
- D.
  
  D morning
7.

#include<stdio.h> #include<conio.h> void main() { char s[]="ghost"; printf("%d",sizeof(s)); getch(); }
- A.
  
  5
- B.
  
  6
- C.
  
  4
- D.
  
  Error
8.

#include<stdio.h> #include<conio.h> void main() { printf("\n yo"); printf("\b ghost"); printf("\r hy"); getch(); }
- A.
  
  Hy
- B.
  
  Yo
- C.
  
  Hyghost
- D.
  
  None of the above
9.

#include<stdio.h> int main(){ int count, temp, i, j, number[30]; printf("How many numbers are u going to enter?: "); scanf("%d",&count); printf("Enter %d numbers: ",count); for(i=0;i<count;i++) scanf("%d",&number[i]); for(i=count-2;i>=0;i--){ for(j=0;j<=i;j++){ if(number[j]>number[j+1]){ temp=number[j]; number[j]=number[j+1]; number[j+1]=temp; } } } printf("Sorted elements: "); for(i=0;i<count;i++) printf(" %d",number[i]); return 0; }
- A.
  
  Error
- B.
  
  bubble sort
- C.
  
  quick sort
- D.
  
  insertion sort
10.

#include <stdio.h> void main() { char *s= "data"; char *p = s; printf("%c%c", p[1],s[2]); }
- A.
  
  At
- B.
  
  Data
- C.
  
  Ata
- D.
  
  None of the above
11.

#include <stdio.h> void c( int[] ); int main() { int ary[4] = {1, 2, 3, 4}; c(ary); printf("%d ", ary[0]); } void c(int p[4]) { int i = 1; p = &i; printf("%d ", p[0]); }
- A.
  
  1 1
- B.
  
  1 2 3 4
- C.
  
  2 3
- D.
  
  none of the above
12.

#include<stdio.h> void main() { float b=0.45; if(b<0.45) printf("wow"); else printf ("how"); }
- A.
  
  wow
- B.
  
  How
- C.
  
  Compilation error
- D.
  
  Syntax error
13.

#include<stdio.h> void main() { int I; for(I=1;I<=5;I++) { if(I==3) { break; } printf("%d",I); }}
- A.
  
  1 2
- B.
  
  1 2 3
- C.
  
  1 2 3 4 5
- D.
  
  none of the above
14.

#include<stdio.h> void main() { int I=65; char J='A'; if(I==J) { printf("hey"); } else { printf("hii"); } }
- A.
  
  hey
- B.
  
  hii
- C.
  
  none of the above
- D.
  
  Error
15.

#include <stdio.h> int main() { int* data; *data= 9; printf("%d", *data); return 0; }
- A.
  
  Compilation error
- B.
  
  Runtime error
- C.
  
  9
- D.
  
  linker error
16.

#include<stdio.h> int main() { int x; For(x= -1;x<=10;x++) { if(x<5) Continue; else break; printf("abc"); } return 0; }
- A.
  
  Infinite times
- B.
  
  11 times
- C.
  
  0 times
- D.
  
  10 times
17.

#include<stdio.h> int main() { int i=0; For(; i<=5;i++) printf("%d", i); return 0; }
- A.
  
  6
- B.
  
  1,2,3,4
- C.
  
  5
- D.
  
  0,1,2,3,4,5
18.

#include<stdio.h> int main() { int a=500, b=100, c; if(! a>=400) b=300; printf("b=%d c=%d \n", b, c); return 0; }
- A.
  
  b=100 c= garbage
- B.
  
  B=300 c= garbage
- C.
  
  b=100 c=200
- D.
  
  B=300 c=200
19.

#include<stdio.h> int main() { usigned int i= 65535;/*Assume 2byte integer*/ While(i++! =0) printf("%d", ++i); printf("\n"); return 0; }
- A.
  
  0 1 2...65535
- B.
  
  Infinte Loop
- C.
  
  0 1 2...32767-32766-32765-1 0
- D.
  
  No Output
20.

#include<stdio.h> int main() { int x=3; float y=3.0; if(x==y) printf("x and y are not equal"); return 0; }
- A.
  
  No Output
- B.
  
  X and y are not equal
- C.
  
  x and y are equal
- D.
  
  Unpredictable
21.

#include<stdio.h> int main() { Chat ch; if(Ch= printf(" ")) printf(" It matters \n") ; return 0; }
- A.
  
  It Matters
- B.
  
  It doesn't Matters
- C.
  
  Matters
- D.
  
  No Output
22.

#include<stdio.h> int main() { int a[5]={5,1,15,20,25}; int i,j,m; i= ++a[1]; j= a[1]++; m= a[i++]; printf("%d%d%d", i,j,m) ; return 0; }
- A.
  
  1,2,15
- B.
  
  2,3,20
- C.
  
  2,1,15
- D.
  
  3,2,15
23.

What is the output of this program? #include<stdio.h> Void main() { int a=b=c=10; a=b=c=50; printf("\n%d%d%d", a,b,c); }
- A.
  
  Three Garbage Values
- B.
  
  10 10 10
- C.
  
  Compile time Error
- D.
  
  50 50 50
24.

What will be the ouput of this following c code? #include <stdio.h> void main() { int a[4] = {1, 2, 3,4}; int *p = a; printf("%p\t%p", p, a); }
- A.
  
  Same address is printed
- B.
  
  Different address is printed
- C.
  
  Compile time error
- D.
  
  Nothing
25.

Which bitwise operator is suitable for turning off a the particular bit in a number?
- A.
  
  && operator
- B.
  
  & operator
- C.
  
  || operator
- D.
  
  ! operator