#1. Who is the father of C Programming Language?
#2. What is the file extension for C programs?
#3. Which keyword is used to declare a variable in C?
#4. Which function is used to print output in C?
#5. Which library is included to use standard I/O functions like printf() ?
#6. What is the size of an int data type in C?
#7. What does the ‘%’ operator do in C?
#8. What is the format specifier for a float in C
#9. Which data type can store a single character in C?
#10. What will be the result of 5 / 2 in C if both are integers?
#11. Which keyword is used to exit a loop prematurely?
#12. What is the output of the following code snippet? int x = 5; if (x > 0) printf(“Positive”); else printf(“Negative”);
#13. Which loop executes at least once, even if the condition is false?
#14. Which control structure is used to handle multiple conditions?
#15. What is the output of this code? for (int i = 0; i < 3; i++) { printf(“%d “, i); }
#16. What is the correct syntax to declare a function in C?
#17. What is the index of the first element in an array?
#18. How do you access the 3rd element of an array in C?
#19. Which function is used to find the length of a string in C?
#20. Which header file is required for using string functions like strcmp()?
#21. What does a pointer variable store?
#22. Which operator is used to get the address of a variable in C?
#23. What is the output of this code snippet? int x = 10, *p; p = &x; printf(“%d”, *p);
#24. What is a NULL pointer in C?
#25. Which of the following correctly declares a pointer?
#26. Which keyword is used to define a structure in C?
#27. What is the correct syntax to access a structure member using a pointer?
#28. What is the size of an empty structure in C?
#29. Which of these allows defining a structure inside another structure?
#30. How are structure members accessed in C?
#31. Which function is used to dynamically allocate memory in C?
#32. What happens if free() is not used after malloc()?
#33. What is the purpose of calloc()?
#34. What is the syntax for realloc()? (realloc()
#35. What happens when you free() memory twice?
#36. Which function is used to open a file in C?
#37. What does the mode “r” signify in fopen()?
#38. Which function is used to read a character from a file?
#39. Which library provides file handling functions
#40. Which function is used to close a file?
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