Output Questions Set 5
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Question 1 of 10
1. Question
1 pointsIs it possible to run program without main() function?
Correct
Hint:
Ideally No but remember pragma directives allows few function to be executed before and after main() functionIncorrect
Hint:
Ideally No but remember pragma directives allows few function to be executed before and after main() function -
Question 2 of 10
2. Question
1 pointsHow many main() function we can have in our project?
Correct
Hint:
We can’t have more than one main() function in a project.Incorrect
Hint:
We can’t have more than one main() function in a project. -
Question 3 of 10
3. Question
1 pointsWhat is sizeof() in C?
Correct
Hint:
Anything which has opening and closing braces () is not functionIncorrect
Hint:
Anything which has opening and closing braces () is not function -
Question 4 of 10
4. Question
1 pointsIs it true that a function may have several declaration, but only one definition.
Correct
Hint:
Declaration like int sum(int, int); is allowed number of times but definition int sum(int a, int b) { return a+b; } is allowed only one time. Multiple definition of same function is compilation error ( redefinition error )Incorrect
Hint:
Declaration like int sum(int, int); is allowed number of times but definition int sum(int a, int b) { return a+b; } is allowed only one time. Multiple definition of same function is compilation error ( redefinition error ) -
Question 5 of 10
5. Question
1 pointsint main()
{
extern int i;
i = 20;
printf(“%d”, sizeof(i));
return 0;
}Correct
Hint:
extern int i; tell the compiler that int i is declared in some other file, in this code we have not included any other header file so it will cause compilation error.Incorrect
Hint:
extern int i; tell the compiler that int i is declared in some other file, in this code we have not included any other header file so it will cause compilation error. -
Question 6 of 10
6. Question
1 pointsIs the following statement a declaration or definition
extern int i;Correct
Incorrect
-
Question 7 of 10
7. Question
1 pointsint main()
{
int x = 10;
{
int x = 0;
printf(“%d”,x);
}
return 0;
}Correct
Hint:
It will print nearest values that is x =0Incorrect
Hint:
It will print nearest values that is x =0 -
Question 8 of 10
8. Question
1 pointsint main()
{
int x = 0;
printf(“%d”,x);
return 0;
}Correct
Hint:
It will print nearest values that is x =0. To print x=10; scope resolution operator :: should be used like printf(“%d”, ::a)Incorrect
Hint:
It will print nearest values that is x =0. To print x=10; scope resolution operator :: should be used like printf(“%d”, ::a) -
Question 9 of 10
9. Question
1 points//This program is compiled on 32 bit DEV-C++
int main()
{char *ptr1, *ptr2;
printf(“%d %d”, sizeof(ptr1), sizeof(ptr2));return 0;
}Correct
Hint:
On 32 compilers pointer’s size is 4 bytes while on 64 bit compiler pointers size is 8 bytes. Note – If your computer is 64 bits then you can use both 32 bits and 64 bits compiler on it.Incorrect
Hint:
On 32 compilers pointer’s size is 4 bytes while on 64 bit compiler pointers size is 8 bytes. Note – If your computer is 64 bits then you can use both 32 bits and 64 bits compiler on it. -
Question 10 of 10
10. Question
1 pointsWhich programming language is more faster among these?
Correct
Hint:
Execution flow ( faster to slower) Binary -> Assembly -> C -> C++ > Java / PHP / VBIncorrect
Hint:
Execution flow ( faster to slower) Binary -> Assembly -> C -> C++ > Java / PHP / VB
