MODEL SET-NEB-COMPUTER 12

Subject: Computer Science

Set - B

Class: 12

FM: 50

Time: 2 hrs.

Group – A Multiple Choice Questions (1*9=9)

1. Which of following statement is not used in DML?

a. SELECT

b. CREATE

c. Both a and b

d. None of above

2. Repetition of data is termed as …………………….

a. Integrity

b. Redundancy

c. Reverse

d. Create

3. Protocols are?

a. Agreements on how communication components and DTE's are to

communicate

b. Logical communication channels for transferring data

c. Physical communication channels used for transferring data

d. None of above

4. Which of the following built-in function in JavaScript helps to make alerts to the

user?

a. Confirm(msg)

b. Alert(msg)

c. Prompt(msg, default value)

d. All of the above

5. Full form of PHP is

a. Preprocessor hypertext

b. Hypertext preprocessor

c. Pre hypertext processor

d. All of the above

6. Which of the following skill is not required by the system analyst?

a. Programming language skill

b. Communication skill

c. Technical skill

d. Management skill

7. Which of the following is disadvantages of AI?

a. Accuracy

b. Digital assistance

c. Faster Decision

d. No feelings and emotions

8. Size of the Union is determined by the size of…………………

a. First member

b. Largest member

c. All member

d. All of the above

9. ……….. is the process by which objects of one class acquire the properties of

objects of another class.

a. Polymorphism

b. Encapsulation

c. Inheritance

d. Abstraction

Group – B Short Question Answers (5*5=25)

6. Explain Big data with its characteristics.

7. Explain relational database model with its advantages.

8. WAP to display largest among three numbers using JavaScript.

OR

Differentiate between client side and server-side scripting.

9. Explain abstraction, encapsulation, polymorphism in OOP.

10. Explain waterfall model with its phases.

Group – C: Long Question Answers (8*2=16)

11. Explain communication system with necessary diagram.

OR

Explain peer to peer and client server network architecture with their advantages.

12. Differentiate between structure and Union with example.