Haryana Board 12th Class Computer Science (English) Previous Year Question Paper

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Haryana Board 12th Class Computer Science (English) Previous Year Question Paper

1. Explain 3rd normal form.

2. Explain the concept of video conferencing.

3. Explain the following SQL functions : AVG, COUNT, MAX, MIN.

4. What is a class ? How it is declared ? Give example.

5. Define a class to represent batsmen in a team. Include following member : Data Members : First name, Last name, Runs made.

Member functions :

(i) To assign initial values,
(ii) To update runs made,
(iii) To display batsman information.

6. Give algorithm of POP.

7. What operations can be performed on data structure ?

8. Define field and record.

9. What is the need of survey in SDLC ?

10. What are various ways of recording facts ?

11. Give structure of HTML page.

12. What is HTML ?

13. What is a Marquee ?

14. Define Intranet.

15. What is the use of scope resolution operator ?

[ Objective Type Questions ]

16. (i) Full form of HTTP is ……………. .

(ii) Full form of FTP is ……………. .

(iii) Protected members of a class are ……………. but private members are not.

(iv) In a queue, insertion takes place at ……………. end.

(v) A relation is in 2NF if every non-key attribute is ……………. dependent on primary key.

(vi) The number of attributes in a relation is called ……………. . (a) Tuple (b) Cardinality (c) Degree (d) Row

(vii) ……………. are network spread over a city.  (a) LAN (b) MAN (c) WAN (d) None

(vii) All HTML tags are enclosed in ……………. . (a) # # (b) <> (c) !! (d) None