Skill Test

12 Questions | By Prabhaforritari | Updated: Aug 24, 2017 | Attempts: 170

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Questions and Answers

1.

Which is correct with respect to size of the datatypes?
- A.
  
  Char > int > float
- B.
  
  int > char > float
- C.
  
  char < int < double
- D.
  
  Double > char > int
Correct Answer
C. char < int < double

Explanation
char has lesser bytes than int and int has lesser bytes than double in any system

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2.
What is the output of this C code?
1. #include
2. int main()
3. {
4. enum {ORANGE = 5, MANGO, BANANA = 4, PEACH};
5. printf("PEACH = %d\n", PEACH);
6. }
- A.
  
  PEACH = 3
- B.
  
  PEACH = 4
- C.
  
  PEACH = 5
- D.
  
  PEACH = 6
Correct Answer
C. PEACH = 5

Explanation
In enum, the value of constant is defined to the recent assignment from left.

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3.
1. What is the output of this C code? #include <stdio.h>
2. int main()
3. {
4. int var = 010;
5. printf("%d", var);
6. }
- A.
  
  2
- B.
  
  8
- C.
  
  10
- D.
  
  9
Correct Answer
B. 8

Explanation
010 is octal representation of 8.

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4.
What is the output of this C code?
1. #include
2. void foo(const int *);
3. int main()
4. {
5. const int i = 10;
6. printf("%d ", i);
7. foo(&i);
8. printf("%d", i);
10. }
11. void foo(const int *i)
12. {
13. *i = 20;
14. }
- A.
  
  Compile time error
- B.
  
  10 20
- C.
  
  Undefined value
- D.
  
  10
Correct Answer
A. Compile time error

Explanation
Cannot change a const type value.

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5.
What is the output of this C code?
1. #include <stdio.h>
2. int main()
3. {
4. j = 10;
5. printf("%d\n", j++);
6. return 0;
7. }
- A.
  
  10
- B.
  
  11
- C.
  
  Compile time error
- D.
  
  0
Correct Answer
C. Compile time error

Explanation
Variable j is not defined.

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6.
Does this compile without error?
1. #include <stdio.h>
2. int main()
3. {
4. int k;
5. {
6. int k;
7. for (k = 0; k < 10; k++);
8. }
9. }
- A.
  
  Yes
- B.
  
  No
- C.
  
  Depends on the compiler
- D.
  
  Depends on the C standard implemented by compilers
Correct Answer
A. Yes

Explanation
There can be blocks inside block and within blocks variables have only block scope.

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7.

Which of the following declaration is not supported by C?
- A.
  
  String str;
- B.
  
  Char *str;
- C.
  
  float str = 3e2;
- D.
  
  Both (a) and (c)
Correct Answer
A. String str;

Explanation
It is legal in Java, not in C.

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8.
What is the output of this C code?
1. #include <stdio.h>
2. void main()
3. {
4. int x = 97;
5. char y = x;
6. printf("%c\n", y);
7. }
- A.
  
  A
- B.
  
  B
- C.
  
  97
- D.
  
  Run time error
Correct Answer
A. A
9.
What is the output of this C code?
1. #include <stdio.h>
2. int main()
3. {
4. int a = 1, b = 1, d = 1;
5. printf("%d, %d, %d", ++a + ++a+a++, a++ + ++b, ++d + d++ + a++);
6. }
- A.
  
  9, 6, 9
- B.
  
  15, 4, 5
- C.
  
  9, 3, 5
- D.
  
  6, 4, 6
Correct Answer
B. 15, 4, 5
10.
What is the output of this C code?
1. #include <stdio.h>
2. void main()
3. {
4. int x = 0;
5. if (x = 0)
6. printf("Its zero\n");
7. else
8. printf("Its not zero\n");
9. }
- A.
  
  Its zero
- B.
  
  Run time error
- C.
  
  Its not zero
- D.
  
  None
Correct Answer
C. Its not zero
11.
What is the output of this C code?
1. #include <stdio.h>
2. void main()
3. {
4. int k;
5. for (k = -3; k < -5; k++)
6. printf("Hello");
7. }
- A.
  
  Run time error
- B.
  
  Infinite hello
- C.
  
  Nothing
- D.
  
  Hello
Correct Answer
C. Nothing
12.
What is the output of this C code?
1. #include
2. int main()
3. {
4. int x = 0;
5. if (x++)
6. printf("true\n");
7. else if (x == 1)
8. printf("false\n");
9. }
- A.
  
  Undefined behaviour
- B.
  
  Compile time error
- C.
  
  False
- D.
  
  True
Correct Answer
B. Compile time error

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Current Version
Aug 24, 2017

Quiz Edited by
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Aug 25, 2013

Quiz Created by
Prabhaforritari

Skill Test

Which is correct with respect to size of the datatypes?

What is the output of this C code?

#include

int main()

{

enum {ORANGE = 5, MANGO, BANANA = 4, PEACH};

printf("PEACH = %d\n", PEACH);

}

What is the output of this C code? #include <stdio.h>

int main()

{

int var = 010;

printf("%d", var);

}

What is the output of this C code?

#include

void foo(const int );

int main()

{

const int i = 10;

printf("%d ", i);

foo(&i);

printf("%d", i);

}

void foo(const int i)

{

*i = 20;

}

What is the output of this C code?

#include <stdio.h>

int main()

{

j = 10;

printf("%d\n", j++);

return 0;

}

Does this compile without error?

#include <stdio.h>

int main()

{

int k;

{

int k;

for (k = 0; k < 10; k++);

}

}

Which of the following declaration is not supported by C?

What is the output of this C code?

#include <stdio.h>

void main()

{

int x = 97;

char y = x;

printf("%c\n", y);

}

What is the output of this C code?

#include <stdio.h>

int main()

{

int a = 1, b = 1, d = 1;

printf("%d, %d, %d", ++a + ++a+a++, a++ + ++b, ++d + d++ + a++);

}

What is the output of this C code?

#include <stdio.h>

void main()

{

int x = 0;

if (x = 0)

printf("Its zero\n");

else

printf("Its not zero\n");

}

What is the output of this C code?

#include <stdio.h>

void main()

{

int k;

for (k = -3; k < -5; k++)

printf("Hello");

}

What is the output of this C code?
#include
int main()
{
int x = 0;
if (x++)
printf("true\n");
else if (x == 1)
printf("false\n");
}

Skill Test

Which is correct with respect to size of the datatypes?

What is the output of this C code? #include int main() { enum {ORANGE = 5, MANGO, BANANA = 4, PEACH}; printf("PEACH = %d\n", PEACH); }

What is the output of this C code? #include <stdio.h> int main() { int var = 010; printf("%d", var); }

What is the output of this C code? #include void foo(const int *); int main() { const int i = 10; printf("%d ", i); foo(&i); printf("%d", i); } void foo(const int *i) { *i = 20; }

What is the output of this C code? #include <stdio.h> int main() { j = 10; printf("%d\n", j++); return 0; }

Does this compile without error? #include <stdio.h> int main() { int k; { int k; for (k = 0; k < 10; k++); } }

Which of the following declaration is not supported by C?

What is the output of this C code? #include <stdio.h> void main() { int x = 97; char y = x; printf("%c\n", y); }

What is the output of this C code? #include <stdio.h> int main() { int a = 1, b = 1, d = 1; printf("%d, %d, %d", ++a + ++a+a++, a++ + ++b, ++d + d++ + a++); }

What is the output of this C code? #include <stdio.h> void main() { int x = 0; if (x = 0) printf("Its zero\n"); else printf("Its not zero\n"); }

What is the output of this C code? #include <stdio.h> void main() { int k; for (k = -3; k < -5; k++) printf("Hello"); }

What is the output of this C code? #include int main() { int x = 0; if (x++) printf("true\n"); else if (x == 1) printf("false\n"); }

What is the output of this C code?

#include

int main()

{

enum {ORANGE = 5, MANGO, BANANA = 4, PEACH};

printf("PEACH = %d\n", PEACH);

}

What is the output of this C code? #include <stdio.h>

int main()

{

int var = 010;

printf("%d", var);

}

What is the output of this C code?

#include

void foo(const int );

int main()

{

const int i = 10;

printf("%d ", i);

foo(&i);

printf("%d", i);

}

void foo(const int i)

{

*i = 20;

}

What is the output of this C code?

#include <stdio.h>

int main()

{

j = 10;

printf("%d\n", j++);

return 0;

}

Does this compile without error?

#include <stdio.h>

int main()

{

int k;

{

int k;

for (k = 0; k < 10; k++);

}

}

What is the output of this C code?

#include <stdio.h>

void main()

{

int x = 97;

char y = x;

printf("%c\n", y);

}

What is the output of this C code?

#include <stdio.h>

int main()

{

int a = 1, b = 1, d = 1;

printf("%d, %d, %d", ++a + ++a+a++, a++ + ++b, ++d + d++ + a++);

}

What is the output of this C code?

#include <stdio.h>

void main()

{

int x = 0;

if (x = 0)

printf("Its zero\n");

else

printf("Its not zero\n");

}

What is the output of this C code?

#include <stdio.h>

void main()

{

int k;

for (k = -3; k < -5; k++)

printf("Hello");

}

What is the output of this C code?
#include
int main()
{
int x = 0;
if (x++)
printf("true\n");
else if (x == 1)
printf("false\n");
}