Blind Coding C Programming Practice Quiz!
(209).jpg "Blind Coding C Programming Practice Quiz! - Quiz")
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- 1.What will be the output of the program? #include #include int main() { float n=1.54; printf("%f, %f\n", ceil(n), floor(n)); return 0; }
- A.
2.000000, 1.000000
- B.
1.500000, 1.500000
- C.
1.550000, 2.000000
- D.
1.000000, 2.000000
- 2.What will be the output of the program? #include int main() { float d=2.25; printf("%e,", d); printf("%f,", d); printf("%g,", d); printf("%lf", d); return 0; }
- A.
2.2, 2.50, 2.50, 2.5
- B.
2.2e, 2.25f, 2.00, 2.25
- C.
2.250000e+000, 2.250000, 2.25, 2.250000
- D.
Error
- 3.Point out the error in the program #include int main() { int i; #if A printf("Enter any number:"); scanf("%d", &i); #elif B printf("The number is odd"); return 0; }
- A.
Error: unexpected end of file because there is no matching #endif
- B.
The number is odd
- C.
Garbage values
- D.
None of above
- 4.What will be the output of the program (Turbo C in 16-bit platform DOS)? #include #include int main() { char *str1 = "India"; char *str2 = "BIX"; char *str3; str3 = strcat(str1, str2); printf("%s %s\n", str3, str1); return 0; }
- A.
IndiaBIX India
- B.
IndiaBIX IndiaBIX
- C.
India India
- D.
Error
- 5.Which of the following statements correct about the below program? #include int main() { union a { int i; char ch[2]; }; union a u1 = {512}; union a u2 = {0, 2}; return 0; } 1: u2 CANNOT be initialized as shown. 2: u1 can be initialized as shown. 3: To initialize char ch[] of u2 '.' operator should be used. 4: The code causes an error 'Declaration syntax error'
- A.
1, 2
- B.
2, 3
- C.
1, 2, 3
- D.
1, 3, 4
- 6.What will be the output of the program? #include int get(); int main() { const int x = get(); printf("%d", x); return 0; } int get() { return 20; }
- A.
Garbage value
- B.
Error
- C.
20
- D.
0
- 7.Point out the error in the program. #include #include int fun(const union employee *e); union employee { char name[15]; int age; float salary; }; const union employee e1; int main() { strcpy(e1.name, "A"); fun(&e1); printf("%s %d %f", e1.name, e1.age, e1.salary); return 0; } int fun(const union employee *e) { strcpy((*e).name, "B"); return 0; }
- A.
Error: RValue required
- B.
Error: cannot convert parameter 1 from 'const char[15]' to 'char *'
- C.
Error: LValue required in strcpy
- D.
No error
- 8.Point out the error in the following program. #include void display(int (*ff)()); int main() { int show(); int (*f)(); f = show; display(f); return 0; } void display(int (*ff)()) { (*ff)(); } int show() { printf("IndiaBIX"); }
- A.
Error: invalid parameter in function display()
- B.
Error: invalid function call f=show;
- C.
No error and prints "IndiaBIX"
- D.
No error and prints nothing.
- 9.Point out the error, if any in the program. #include int main() { int a = 10, b; a >=5 ? b=100: b=200; printf("%d\n", b); return 0; }
- A.
100
- B.
200
- C.
Error: L value required for b
- D.
Garbage value
- 10.What will be the output of the program? #include int main() { int i=4, j=-1, k=0, w, x, y, z; w = i || j || k; x = i && j && k; y = i || j &&k; z = i && j || k; printf("%d, %d, %d, %d\n", w, x, y, z); return 0; }
- A.
1, 1, 1, 1
- B.
1, 1, 0, 1
- C.
1, 0, 0, 1
- D.
1, 0, 1, 1
- 11.Macros have a local scope.
- A.
True
- B.
False
- 12.Is this a correct way for NULL pointer assignment? int i=0; char *q=(char*)i;
- A.
Yes
- B.
No
- 13.What will be the output of the program if the array begins at 65472 and each integer occupies 2 bytes? #include int main() { int a[3][4] = {1, 2, 3, 4, 4, 3, 2, 1, 7, 8, 9, 0}; printf("%u, %u\n", a+1, &a+1); return 0; }
- A.
65474, 65476
- B.
65480, 65496
- C.
65480, 65488
- D.
65474, 65488
- 14.What will be the output of the program ? #include #include int main() { char sentence[80]; int i; printf("Enter a line of text\n"); gets(sentence); for(i=strlen(sentence)-1; i >=0; i--) putchar(sentence[i]); return 0; }
- A.
The sentence will get printed in same order as it entered
- B.
The sentence will get printed in reverse order
- C.
Half of the sentence will get printed
- D.
None of above
- 15.What will be the output of the program ? #include struct course { int courseno; char coursename[25]; }; int main() { struct course c[] = { {102, "Java"}, {103, "PHP"}, {104, "DotNet"} }; printf("%d ", c[1].courseno); printf("%s\n", (*(c+2)).coursename); return 0; }
- A.
103 DotNet
- B.
103 PHP
- C.
102 Java
- D.
104 DotNet
- 16.On executing the below program what will be the contents of 'target.txt' file if the source file contains a line "To err is human"? #include int main() { int i, fss; char ch, source[20] = "source.txt", target[20]="target.txt", t; FILE *fs, *ft; fs = fopen(source, "r"); ft = fopen(target, "w"); while(1) { ch=getc(fs); if(ch==EOF) break; else { fseek(fs, 4L, SEEK_CUR); fputc(ch, ft); } } return 0; }
- A.
R n
- B.
Trh
- C.
Err
- D.
None of above
- 17.What will be the output of the program (sample.c) given below if it is executed from the command line (Turbo C in DOS)? cmd> sample 1 2 3 /* sample.c */ #include int main(int argc, char *argv[]) { int j; j = argv[1] + argv[2] + argv[3]; printf("%d", j); return 0; }
- A.
6
- B.
Sample 6
- C.
Error
- D.
Garbage value
- 18.What will be the output of the program? #include int main() { int x=1, y=1; for(; y; printf("%d %d\n", x, y)) { y = x++ <= 5; } printf("\n"); return 0; }
- A.
A. 2 1 3 1 4 1 5 1 6 1 7 0
- B.
B. 2 1 3 1 4 1 5 1 6 1
- C.
C. 2 1 3 1 4 1 5 1
- D.
D. 2 2 3 3 4 4 5 5
- 19.Which of the following range is a valid long double (Turbo C in 16 bit DOS OS) ?
- A.
3.4E-4932 to 1.1E+4932
- B.
3.4E-4932 to 3.4E+4932
- C.
1.1E-4932 to 1.1E+4932
- D.
1.7E-4932 to 1.7E+4932
- 20.What will be the output of the program? #include #include int main() { int i=0; i++; if(i<=5) { printf("IndiaBIX"); exit(1); main(); } return 0; }
- A.
Prints "IndiaBIX" 5 times
- B.
Function main() doesn't calls itself
- C.
Infinite loop
- D.
Prints "IndiaBIx"
- 21.What will be the output of the program ? #include int main() { int i, a[] = {2, 4, 6, 8, 10}; change(a, 5); for(i=0; i<=4; i++) printf("%d, ", a[i]); return 0; } void change(int *b, int n) { int i; for(i=0; i *(b+1) = *(b+i)+5; }
- A.
7, 9, 11, 13, 15
- B.
2, 15, 6, 8, 10
- C.
2 4 6 8 10
- D.
3, 1, -1, -3, -5
- 22.What will be the output of the program ? #include int main() { enum status {pass, fail, absent}; enum status stud1, stud2, stud3; stud1 = pass; stud2 = absent; stud3 = fail; printf("%d %d %d\n", stud1, stud2, stud3); return 0; }
- A.
0, 1, 2
- B.
1, 2, 3
- C.
0, 2, 1
- D.
1, 3, 2
- 23.Which of the following statements are correct about the program? #include char *fun(unsigned int num, int base); int main() { char *s; s=fun(128, 2); s=fun(128, 16); printf("%s\n",s); return 0; } char *fun(unsigned int num, int base) { static char buff[33]; char *ptr = &buff[sizeof(buff)-1]; *ptr = '\0'; do { *--ptr = "0123456789abcdef"[num %base]; num /=base; }while(num!=0); return ptr; }
- A.
It converts a number to a given base
- B.
It converts a number to its equivalent binary.
- C.
It converts a number to its equivalent hexadecimal.
- D.
It converts a number to its equivalent octal.
- 24.Point out the correct statement will let you access the elements of the array using 'p' in the following program? #include #include int main() { int i, j; int(*p)[3]; p = (int(*)[3])malloc(3*sizeof(*p)); return 0; }
- A.
For(i=0; i
- B.
For(i=0; i
- C.
For(i=0; i
- D.
For(j=0; j
- 25.Point out the error in the following program. #include #include int main() { char str1[] = "Learn through IndiaBIX\0.com", str2[120]; char *p; p = (char*) memccpy(str2, str1, 'i', strlen(str1)); *p = '\0'; printf("%s", str2); return 0; }
- A.
Error: in memccpy statement
- B.
Error: invalid pointer conversion
- C.
Error: invalid variable declaration
- D.
No error and prints "Learn through Indi"
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