SEC-a PC Quiz-4 (April 2019)
.
- 1.Which of the following is not a pointer declaration?
- A.
Char a[4];
- B.
Char a[] = {‘1’, ‘2’, ‘3’, ‘4’};
- C.
Char *str;
- D.
Char a;
- 2.What will be the output? int main(){ int i = 5; int j = i / -2; int k = i % -2; printf("%d %d\n", j, k); return 0; }
- A.
-2, -1
- B.
2, 1
- C.
-2, 1
- D.
None
- 3.What will be the output/error? int main(){ float i = 6.2; float j = i % -2; printf("%d\n", j); return 0; }
- A.
1
- B.
-1
- C.
Error
- D.
None
- 4.What will be the output/error? int main() { int a = 10, b = 20, c = 30; if(!a >= 50) b = 300; c = 400; printf("%d,%d,%d", a, b, c); return 0; }
- A.
102030
- B.
1020400
- C.
10300400
- D.
103020
- 5.How to catch multi word string using scanf ?
- A.
%[^\n]s
- B.
%[^/n]s
- C.
%[/n]s
- D.
None
- 6.What will be the output/error? void fun(int*); int main() { int i = 10; int *j = &i; fun(j++); return 0; } void fun(int *k) { printf("%d\n", *k); }
- A.
10
- B.
Some garbage value
- C.
Error
- D.
None
- 7.What will be the output/error? void fun(int*); int main() { int i = 10; int *j = &i; fun(++j); return 0; } void fun(int *k) { printf("%d\n", *k); }
- A.
10
- B.
Some garbage value
- C.
Error
- D.
None
- 8.void fun(int*); int main() { int i = 10; int *j = &i; fun(&i); printf("%d ", *j); return 0; } void fun(int *j) { int k=2; j=&k; printf("%d ", *j); }
- A.
10, 2
- B.
2, 10
- C.
2, 2
- D.
None
- 9.Void main () { int a[4] = {1,2,3,4}; max(&a[3]); } void max(int *z) { printf("%d",*z); }
- A.
1
- B.
1,2
- C.
4
- D.
3
- 10.Void main () { int a[4] = {1,2,3,4}; max(a[2]); } void max(int z) { printf("%d",*z); }
- A.
1
- B.
2
- C.
4
- D.
3
- 11.Void main () { int a[4] = {1,2,3,4}, i; for(i=0; i < 4 ; i++) { max(&a[i]); } } void max(int *z) { int i; printf("%d",*z); }
- A.
1,2,3,4
- B.
2,1,3,4
- C.
2,2,2,2
- D.
3,3,3,3
- 12.Void main () { int a[4] = {1,2,3,4}, i; max(a); } void max(int z[]) { int i; for(i=0; i < 4; i++) { printf("%d\n", z[i]); } }
- A.
4,3,2,1
- B.
1,2,3,4
- C.
3,2,1,4
- D.
2,1,3,4
- 13.Size of pointer in gcc32 compiler is
- A.
2Byte
- B.
4Byte
- C.
8Byte
- D.
Compiler depended
- 14.Void main () { int a[4] = {1,2,3,4}, i; max(a); } void max(int *z) { int i; for(i=0;i < 4 ; i++) { printf("%d\n", z[i]); } }
- A.
2,1,3,4
- B.
2,4,3,1
- C.
1,2,3,4
- D.
None
- 15.Void main () { int a[4] = {1,2,3,4}, i; max(&a); } void max(int *z) { int i; for(i=3;i>=0;i++) { printf("%d\n", z[i]); } }
- A.
1,2,3,4
- B.
4,3,2,1
- C.
2,1,3,4
- D.
4,3,1,2
- 16.Void main () { int a=10; int *p = &a; int **q = &p; printf("%d, %d", *p, **q); }
- A.
10,10
- B.
Address of p &q
- C.
Address of a
- D.
None
- 17.Which of the following is a correct format for declaration of function?
- A.
Return-type function-name(argument type);
- B.
Return-type function-name(argument type){}
- C.
Return-type (argument type)function-name;
- D.
All of the mentioned
- 18.Which of the following function declaration is illegal?
- A.
Int 1bhk(int);
- B.
Int 1bhk(int a);
- C.
Int 2bhk(int*, int []);
- D.
All of the mentioned
- 19.Which function definition will run correctly?
- A.
Int sum(int a, int b) return (a, b);
- B.
Int sum(int a, int b) {return (a + b);}
- C.
Int sum(a, b) return (a + b);
- D.
none of the mentioned
- 20.The value obtained in the function is given back to main by using ________ keyword.
- A.
Return
- B.
Static
- C.
New
- D.
Volatile
- 21.Can we use a function as a parameter of another function? [ Eg: void wow(int func()) ].
- A.
Yes, and we can use the function value conveniently
- B.
Yes, but we call the function again to get the value, not as convenient as in using variable
- C.
No, C does not support it
- D.
This case is compiler dependent
- 22.void f(char**); int main() { char *argv[] = { "ab", "cd", "ef", "gh", "ij", "kl" }; f(argv); return 0; } void f(char **p) { char *t; t = (p += sizeof(int))[-1]; printf("%sn", t); }
- A.
AB
- B.
Cd
- C.
Ef
- D.
Gh
- 23.int main() { int a[5] = {1,2,3,4,5}; int *ptr = (int*)(&a+1); printf("%d %d", *(a+1), *(ptr-1)); return 0; }
- A.
Garbage Value
- B.
Compile time error
- C.
2 3
- D.
2 5
- 24.#define R 10 #define C 20 int main() { int (*p)[R][C]; printf("%d", sizeof(*p)); getchar(); return 0; }
- A.
400
- B.
200
- C.
800
- D.
1024
- 25.Int fun(int *c) { int q = 10; c = &q; return *c; } int main() { int r = 20; int *p = &r; *p=fun(p); printf("%d", *p); return 0; }
- A.
1024
- B.
10
- C.
Compile time error
- D.
Run time error
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