C Programming Skills Test! Trivia Quiz
.
- 1.Can we write a function that takes a variable argument list and passes the list to another function?
- A.
True
- B.
False
- 2.What will be the output of the program in Turbo C? #include int main() { char str[10] = "Choice"; str[6] = "User"; printf("%s\n", str); return 0; }
- A.
Choice User
- B.
Choice
- C.
User
- D.
Error
- 3.What will be the output of the program ? #include int main() { int i; char a[] = "\0"; if(printf("%s", a)) printf("The string is empty\n"); else printf("The string is not empty\n"); return 0; }
- A.
The string is empty
- B.
The string is not empty
- C.
No output
- D.
0
- 4.If the size of pointer is 32 bits What will be the output of the program ? #include int main() { char a[] = "Visual C++"; char *b = "Visual C++"; printf("%d, %d\n", sizeof(a), sizeof(b)); printf("%d, %d", sizeof(*a), sizeof(*b)); return 0; }
- A.
10, 2 2, 2
- B.
10, 4 1, 2
- C.
11, 4 1, 1
- D.
12, 2 2, 2
- 5.What will be the output of the program? #include #include int main() { char dest[] = {97, 97, 0}; char src[] = "aaa"; int i; if((i = memcmp(dest, src, 2))==0) printf("Got it"); else printf("Missed"); return 0; }
- A.
Missed
- B.
Got it
- C.
Error in memcmp statement
- D.
None of the above
- 6.What will be the output of the program (sample.c) given below if it is executed from the command line? cmd> sample Jan Feb Mar /* sample.c */ #include #include int main(int arc, char *arv[]) { int i; for(i=1; i<_argc; i++) printf("%s ", _argv[i]); return 0;
- A.
No output
- B.
Sample Jan Feb Mar
- C.
Jan Feb Mar
- D.
Error
- 7.What will be the output of the program (sample.c) given below if it is executed from the command line? cmd> sample one two three /* sample.c */ #include int main(int argc, char *argv[]) { int i=0; i+=strlen(argv[1]); while(i>0) { printf("%c", argv[1][--i]); } return 0; }
- A.
Three two one
- B.
Owt
- C.
Eno
- D.
Eerht
- 8.What will be the output of the program #include void fun(int); int main(int argc) { printf("%d\n", argc); fun(argc); return 0; } void fun(int i) { if(i!=4) main(++i); }
- A.
123
- B.
1234
- C.
234
- D.
1
- 9.What is the output of the program #include int main() { int x = 10, y = 20, z = 5, i; i = x < y < z; printf("%d\n", i); return 0; }
- A.
0
- B.
1
- C.
Error
- D.
None
- 10.What is the output of the program given below ? #include int main() { enum status { pass, fail, atkt}; enum status stud1, stud2, stud3; stud1 = pass; stud2 = atkt; stud3 = fail; printf("%d, %d, %d\n", stud1, stud2, stud3); return 0; }
- A.
0, 1, 2
- B.
0,2,1
- C.
1, 2, 3
- D.
1,3,2
- 11.Which files will get closed through the fclose() in the following program? #include int main() { FILE *fs, *ft, *fp; fp = fopen("A.C", "r"); fs = fopen("B.C", "r"); ft = fopen("C.C", "r"); fclose(fp, fs, ft); return 0; }
- A.
"A.C" "B.C" "C.C"
- B.
"B.C" "C.C"
- C.
"A.C"
- D.
Error in fclose()
- 12.Assunming, integer is 2 byte, What will be the output of the program? #include int main() { printf("%x\n", -2<<2); return 0; }
- A.
Ffff
- B.
0
- C.
Fff8
- D.
Error
- 13.What will be the output of the program? #include int main() { int fun(int); int i = fun(10); printf("%d\n", --i); return 0; } int fun(int i) { return (i++); }
- A.
9
- B.
10
- C.
11
- D.
8
- 14.What will be the output of the program in 16 bit platform (Turbo C under DOS) ? #include int main() { struct value { int bit1:1; int bit3:4; int bit4:4; }bit; printf("%d\n", sizeof(bit)); return 0; }
- A.
1
- B.
2
- C.
4
- D.
9
- 15.What will be the output of the program? #include int addmult(int ii, int jj) { int kk, ll; kk = ii + jj; ll = ii * jj; return (kk, ll); } int main() { int i=3, j=4, k, l; k = addmult(i, j); l = addmult(i, j); printf("%d %d\n", k, l); return 0; }
- A.
12,12
- B.
No error,no output
- C.
Error: Compile error
- D.
None
- 16.In the following program where is the variable a getting defined and where it is getting declared? #include int main() { extern int a; printf("%d\n", a); return 0; } int a=20;
- A.
Extern int a is declaration, int a = 20 is the definition
- B.
Int a = 20 is declaration, extern int a is the definition
- C.
Int a = 20 is definition, a is not defined
- D.
A is declared, a is not defined
- 17.What are the types of linkages?
- A.
Internal and External
- B.
External, Internal and None
- C.
External and None
- D.
None
- 18.Which of the following statements are correct about the program? #include int main() { printf("%p\n", main()); return 0; }
- A.
It prints garbage values infinitely
- B.
Runs infinitely without printing anything
- C.
Error: main() cannot be called inside printf()
- D.
No Error and print nothing
- 19.We want to round off x, a float, to an int value, The correct way to do is
- A.
y = (int)(x + 0.5)
- B.
Y = int(x + 0.5)
- C.
y = (int)x + 0.5
- D.
Y = (int)((int)x + 0.5)
- 20.Which of the following statements are correct about the below C-program? #include int main() { int x = 10, y = 100%90, i; for(i=1; i<10; i++) if(x != y); printf("x = %d y = %d\n", x, y); return 0; } 1 : The printf() function is called 10 times. 2 : The program will produce the output x = 10 y = 10 3 : The ; after the if(x!=y) will NOT produce an error. 4 : The program will not produce output.
- A.
1
- B.
2,3
- C.
3,4
- D.
4
- 21.What will be the output of the program? #include int main() { int k, num=30; k = (num>5 ? (num <=10 ? 100 : 200): 500); printf("%d\n", num); return 0; }
- A.
200
- B.
30
- C.
100
- D.
400
- 22.Point out the error in the following program. #include int main() { struct emp { char name[20]; float sal; }; struct emp e[10]; int i; for(i=0; i<=9; i++) scanf("%s %f", e[i].name, &e[i].sal); return 0; }
- A.
Suspicious pointer conversion
- B.
Floating point formats not linked (Run time error)
- C.
Cannot use scanf() for structures
- D.
Strings cannot be nested inside structures
- 23.The keyword used to transfer control from a function back to the calling function is
- A.
Switch
- B.
Goto
- C.
Go back
- D.
Return
- 24.Which of the following statements are correct about the function? long fun(int num) { int i; long f=1; for(i=1; i<=num; i++) f = f * i; return f; }
- A.
The function calculates the value of 1 raised to power num.
- B.
The function calculates the square root of an integer
- C.
The function calculates the factorial value of an integer
- D.
None of above
- 25.Which of the statements is correct about the program? #include int main() { float a=3.14; char *j; j = (char*)&a; printf("%d\n", *j); return 0; }
- A.
It prints ASCII value of the binary number present in the first byte of a float variable a.
- B.
It prints character equivalent of the binary number present in the first byte of a float variable a.
- C.
It will print 3
- D.
It will print a garbage value
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