Test On C Programming Skills! Trivia Quiz

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| By Pranay573

Pranay573

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Quizzes Created: 4 | Total Attempts: 16,433

| Attempts: 1,741

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1/10 Questions

Is it true that too many recursive calls may result in stack overflow?
- True
- False

About This Quiz

This quiz, titled 'Test on C Programming Skills! Trivia Quiz', assesses foundational knowledge in C programming. It features questions on syntax, data types, control structures, and recursion, helping learners gauge their proficiency and readiness in handling real-world programming challenges in C.

Test On C Programming Skills! Trivia Quiz - Quiz

2.

Malloc( ) allocates memory from the heap and not from the stack
- True
- False
Correct Answer

A. True

Explanation

The malloc() function in C is used to allocate memory dynamically from the heap. The heap is a region of memory that is used for dynamic memory allocation. On the other hand, the stack is a region of memory used for storing local variables and function calls. When memory is allocated using malloc(), it is not allocated on the stack but rather on the heap. Therefore, the statement that malloc() allocates memory from the heap and not from the stack is true.

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3.

The library function used to reverse the string is
- Strstr( )
- Strrev( )
- Revstr( )
- None of the above
Correct Answer

A. Strrev( )

Explanation

The correct answer is "strrev( )". This is because the "strrev( )" function is a library function that is commonly used to reverse a string. It takes a string as input and returns the reversed string as output.

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4.

Predict the output of the following program #include<stdio.h> #include<string.h> void main() { char str[ ]="sales\0\man\0"; printf("%s",str); }
- Man
- Sales
- Sales man
- Sales\0man
Correct Answer

A. Sales

Explanation

The program declares a character array "str" and assigns it the value "sales\man\0". The printf statement then prints the value of "str". Since there are no formatting specifiers in the printf statement, it will simply print the string as it is. Therefore, the output of the program will be "sales".

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5.

How many times the following program will print "Jamboree"? #include<stdio.h> void main() { printf("\n Jamboree"); main(); }
- Infinite number of times
- 32767 times
- 65535 times
- Till the stact doesn't overflow
Correct Answer

A. Till the stact doesn't overflow

Explanation

The program will print "Jamboree" until the stack doesn't overflow. This is because the main function calls itself recursively without any condition to stop the recursion. As a result, the program will keep printing "Jamboree" indefinitely until the stack memory is exhausted and overflows.

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6.

Which of the following set of statements is correct?
- Typedef long a; extern int a c;
- Typedef long a; extern a int c:
- Typedef long a; extern a c;
Correct Answer

A. Typedef long a; extern a c;

Explanation

The correct answer is "typedef long a; extern a c;". This is because the first statement declares a typedef for a long integer called "a", and the second statement declares an extern variable of type "a" called "c". This is the correct syntax for declaring a typedef and an extern variable.

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7.

Predict the output of the following program #include<stdio.h> void main() { static char *s[ ]={"black","white","pink","violet"}; char **ptr[ ]={s+3,s+2,s+1,s}, ***p; p=ptr; ++p; printf("%s", **p+1); }
- Ink
- Ack
- Ite
- Let
Correct Answer

A. Ink

Explanation

The program declares an array of strings named "s" and an array of pointers to pointers to char named "ptr". The array "s" contains the strings "black", "white", "pink", and "violet". The array "ptr" is assigned the addresses of the elements in "s" in reverse order. The pointer "p" is assigned the address of the first element in "ptr". The statement "++p" increments the pointer "p" to point to the next element in "ptr", which is the address of the string "pink". The statement "printf("%s", **p+1)" prints the string starting from the second character of "pink", which is "ink".

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0
8.

#include<stdio.h> void main() { struct emp { char name[20]; int age; float sal; }; struct emp e={"Tiger"}; printf("\n %d %f",e.age,e.sal); }
- 0 0.000000
- Garbage values
- Error
- None of the above
Correct Answer

A. 0 0.000000

Explanation

When an automatic structure is partially initialized, the remaining elements of the structure are initialized to 0.

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2
9.

By default a real number is treated as
- Float
- Double
- Long double
- Depends on the memory model you are using
Correct Answer

A. Double

Explanation

By default, a real number is treated as a double. The double data type is a 64-bit floating-point number that can represent a wider range of values with greater precision compared to the float data type. Therefore, when a real number is not explicitly declared with a specific data type, it is assumed to be a double.

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10.

Predict the output of the following program #include<stdio.h> #define SQR(x) (x*x) void main() { int a,b=3; a=SQR(b+2); printf("\n %d",a); }
- 25
- 11
- Error
- Garbage value
Correct Answer

A. 11

Explanation

Because,on preprocessing the expression becomes a=(3+2*3+2)

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0

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Current Version
Mar 21, 2023

Quiz Edited by
ProProfs Editorial Team
Sep 17, 2011

Quiz Created by
Pranay573

Test On C Programming Skills! Trivia Quiz

Is it true that too many recursive calls may result in stack overflow?

Quiz Preview

Malloc( ) allocates memory from the heap and not from the stack

The library function used to reverse the string is

Predict the output of the following program #include<stdio.h> #include<string.h> void main() { char str[ ]="sales\0\man\0"; printf("%s",str); }

How many times the following program will print "Jamboree"? #include<stdio.h> void main() { printf("\n Jamboree"); main(); }

Which of the following set of statements is correct?

Predict the output of the following program #include<stdio.h> void main() { static char s[ ]={"black","white","pink","violet"}; char ptr[ ]={s+3,s+2,s+1,s}, p; p=ptr; ++p; printf("%s", **p+1); }

#include<stdio.h> void main() { struct emp { char name[20]; int age; float sal; }; struct emp e={"Tiger"}; printf("\n %d %f",e.age,e.sal); }

By default a real number is treated as

Predict the output of the following program #include<stdio.h> #define SQR(x) (x*x) void main() { int a,b=3; a=SQR(b+2); printf("\n %d",a); }

Test On C Programming Skills! Trivia Quiz

Is it true that too many recursive calls may result in stack overflow?

Quiz Preview

Malloc( ) allocates memory from the heap and not from the stack

The library function used to reverse the string is

Predict the output of the following program #include<stdio.h> #include<string.h> void main() { char str[ ]="sales\0\man\0"; printf("%s",str); }

How many times the following program will print "Jamboree"? #include<stdio.h> void main() { printf("\n Jamboree"); main(); }

Which of the following set of statements is correct?

Predict the output of the following program #include<stdio.h> void main() { static char *s[ ]={"black","white","pink","violet"}; char **ptr[ ]={s+3,s+2,s+1,s}, ***p; p=ptr; ++p; printf("%s", **p+1); }

#include<stdio.h> void main() { struct emp { char name[20]; int age; float sal; }; struct emp e={"Tiger"}; printf("\n %d %f",e.age,e.sal); }

By default a real number is treated as

Predict the output of the following program #include<stdio.h> #define SQR(x) (x*x) void main() { int a,b=3; a=SQR(b+2); printf("\n %d",a); }

Predict the output of the following program #include<stdio.h> void main() { static char s[ ]={"black","white","pink","violet"}; char ptr[ ]={s+3,s+2,s+1,s}, p; p=ptr; ++p; printf("%s", **p+1); }