Computer Science : CBSE Class XII Important Questions Computer Science (2008)

Q. 1. Differentiate between a run-time error and syntax error. Give one example of each.

[Hint : Losic & Syntax]

Q. 2. Differentaite between a data type struct and a data type class in C++. What is the need for a constructor function in an object.

[Hint : Structures & Classes]

Q. 3. Is it possible to apply Binary Search for any sorted data? Justify.

[Hint : Yes]

Q. 4. Differentiate between a LIFO list and FIFO list.

[Hint : Stacks & Queues]

Q. 5. Write any two differences between Procedural Programming and Object Oriented Programming.

[Hint : Basic & C++]

Q. 6. What is a pointer?

[Hint : Address variable]

Q. 7. What is a Queue?

[Hint : LIFO]

Q. 8. What is the purpose of comments and indentation in a program?

[Hint : Remark]

Q. 9. List four built-in data types available in C++.

[Hint : Data Types]

Q. 10. Why arrays are called static data structure?

[Hint : Arrangs & Data Types]

Q. 11. Distinguish between serial file and a sequential file.

[Hint : File Hadling]

Q. 12. What do you mean by Inheritence?

[Hint : Classes & Derived Classes]

Q. 13. What are constructors & destructors. What purpose do they serve.

[Hint : Class Functions]

Q. 14. Distinguish between an object and a class.

[Hint : Variables & Data Types]

Q. 15. What is the pre-condition for Binary Search to be performed on a single dimensional array? [Hint : sorting]

Q. 16. Differentiate between a Character constant and a string literal or constant.

[Hint : String]

Q . 17. Differentiate between the privately & publicly derived visibility modes.

[Hint : Local & Global]

Q. 18. What is meant by linear data structure?

[Hint : Serial Data]

Q. 19. What is a Deque?

[Hint : Data Structures]

Q. 20. Differentiate between privately and publicly derived visibility modes.

[Hint : Data Hiding]

Q.21. What is a copy constructor.

[Hint : Member Function]

Q.22. Define the term sorting and searching.

[Hint : Arranys]

Q. 23. Differentiate between static data structure & dynamic structure.

[Hint : Data Types]

Q. 24. Define the following terms: Inheritance & Encapsulation.

[Hint : OOP]

Q. 25. What is a copy constructor. What do you understand by constructor overloading.

[Hint : Function]

Q. 26. Write two major differences between Object Oriented Programming and Procedural Programming.

[Hint : BASIC&C++]

Q. 27. What do you understand by constructor and destructor functions used in classes. How are these functions different from other member functions.

[Hint : Classes & Objects]

Q. 28. Differentiate between ifstream class and ofstream class.

[Hint : Reading/Writing]

Q. 29. Why main function is special. Give two reasons.

[Hint : Program instractions]

Q. 30. What do you understand by visibility modes in class derivations. What are these modes.

[Hint : Public, Private & Protected]

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