JAC Class 12 Computer Science Question Paper 2016 with Solution

About this paper

This is the Jharkhand Academic Council (JAC) Class 12 Computer Science paper from the 2016 board examination, reproduced with an answer under every question. It has 21 questions in three parts: Group A is a single question of 16 multiple-choice items, Section B has very short answer questions 2 to 10, and Section C has long answer questions 11 to 21. The questions are based on C++ and cover classes, inheritance, structures, stacks, queues and linked lists, along with SQL queries on a given Employee table, Boolean algebra and networking. Full marks and time are not printed on this copy.

Exam

JAC Class 12

Subject

Computer Science

Year

2016

Questions

21

Pages

3

Answers included

Yes

Paper pattern

• Group A

  Question 1 with 16 multiple-choice items, (a) to (p)

• Section B

  Questions 2–10, very short answer questions

• Section C

  Questions 11–21, long answer questions, including C++ programs, SQL queries and truth tables

Topics covered

• C++ basics, tokens and header files
• Object-oriented programming concepts
• Classes, constructors and destructors
• Inheritance
• Structures and pointers
• Stacks, queues and linked lists
• Searching and sorting
• Database concepts and SQL
• Boolean algebra and De Morgan's laws
• Networking and the internet

Questions from this paper

1. What is the difference between object-oriented programming and procedural programming?
2. Define multilevel and multiple inheritance in the context of object-oriented programming, with suitable examples.
3. Write a program to swap the values of two variables using the pass-by-reference method.
4. Evaluate the postfix expression AB+C*D/ using a stack, if A = 2, B = 3, C = 4 and D = 5.
5. What is the difference between static memory allocation and dynamic memory allocation?
6. State and verify De Morgan's laws in Boolean algebra using truth tables.