Pre-Assessment- C,C++, Data Structure & SQL_10th June 24

Which of the following is the correct syntax to include a header file in a C program?

• #header <stdio.h>

• #include stdio.h

• #include <stdio.h>

• #include "stdio.h"

Which of the following statements is correct about a do-while loop in C?

• The loop condition is checked before the loop is executed.

• The loop condition is checked after the loop is executed.

• It is similar to a for loop.

• It can only be used to iterate through arrays.

Which of the following correctly declares and initializes an array of integers in C?

• int arr = {1, 2, 3};

• int arr[] = {1, 2, 3};

• int arr[3] = 1, 2, 3;

• int arr(3) = {1, 2, 3};

Which of the following correctly defines a structure in C?

• struct { int a; float b; }

• struct myStruct { int a; float b; };

• structure myStruct { int a; float b; }

• struct { int a; float b; } myStruct;

What is the correct mode to open a file for reading and writing in C, where the file is created if it does not exist?

• "r+"

• "w+"

• "a+"

• "rw"

Which of the following functions is used to allocate memory dynamically in C?

• alloc()

• malloc()

• calloc()

• memalloc()

What is the correct way to free dynamically allocated memory in C?

• release(ptr);

• free(ptr);

• delete(ptr);

• dealloc(ptr);

Which of the following is NOT a pillar of Object-Oriented Programming?

• Encapsulation

• Inheritance

• Compilation

• Polymorphism

Which of the following statements is true about encapsulation in C++?

• Encapsulation is the process of inheriting properties from a base class.

• Encapsulation is the technique used to achieve polymorphism.

• Encapsulation binds together the data and functions that manipulate the data.

• Encapsulation allows one class to access the private members of another class.

Which of the following operators cannot be overloaded in C++?

• +

• =

• ::

• ++