Computer Knowledge - MCQ Practice Questions

Which of the following is a valid variable name in C?

What is the return type of the strlen() function?

Which operator has the highest precedence in C?

In C, a pointer variable stores which of the following?

What is the purpose of the malloc() function in C?

Which of the following correctly initializes an array of 5 integers?

What is the default return type of a function in C if not explicitly specified?

What does the break statement do in a loop?

Which of the following is used to access members of a structure using a pointer?

In C, what is the purpose of the #define directive?

What is the correct way to declare a function that takes no parameters and returns an integer?

What will be the output of: int x = 5; printf("%d", ++x);?

Consider a pointer ptr pointing to an integer array. What does ptr[2] represent?

What is the time complexity of searching for an element in an unsorted array using linear search?

What will be the result of executing: int a = 5, b = 10; int *ptr = &a; ptr = &b; printf("%d", *ptr);?

Which of the following statements about static variables is TRUE?

What is the size of an integer variable in most modern C compilers?

Which of the following is NOT a valid C data type?

What is the purpose of the & operator in C?

Which keyword is used to create a constant variable in C?