Computer Science XII - Hissan 2078
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This document appears to be instructions for a computer science exam containing two sections - Group A with long answer questions and Group B with short answer questions. For Group A, students must answer 4 out of 5 questions, each worth 10 marks. The questions cover topics like strings, while loops, writing a program to find the sum and greatest number from user-input integers, differences between structures and unions, and classes in OOP. For Group B, students must answer 7 out of 15 questions, each worth 5 marks. The short answer questions cover topics such as system analysis in SDLC, differences between DDL and DML, network database models, normalization, computer networks and LANs, network topologies, OOP characteristics,
![Sub Code: 230
HISSAN – Grade XII
Pre- Board Examinations 2078
Computer Science
Program: Science F.M:75
Time : 2.15 hrs
Candidates are required to give their answers in their own words as far as
practicable. The figures in the margin indicate full marks.
GROUP A
Long answer questions
Attempt any FOUR questions [4 10=40]
1. What is string? Explain any four string handling functions with example.
[10]
2. a) Describe while loop with example. [5]
b) WAP to check whether the given number is exactly divisible by 3 or
not. [5]
3. Write a program which asks to enter 10 integer numbers and find the sum
of the numbers and also find the greatest number. [10]
4. a) Differentiate between structure and union. [5]
b) Define class in OOP. [5]
5. a) What is DBMS. Define the terms data redundancy and
inconsistency. [1+2+2]
b) Explain pointer with example. [5]
GROUP B
Short answer questions
Attempt any SEVEN questions [7 5=35]
6. Describe system analysis phase of SDLC. [5]
7. Define database language. Differentiate between DDL and DML. [1+4]
8. What is network database model? Explain. [5]
9. Define the term normalization. Write advantages of normalization. [5]
10. What is computer network? Describe LAN. [1+4]
11. Describe Bus and Mesh network topology with diagram. [2.5+2.5]
12. What is OOP? List the characteristics of OOP. [1+4]
13. List applications of AI. [5]
14. List out the components of multimedia and explain any one. [5]
15. Write short notes on: [2.5+2.5]
a. Modem b.Encapsulation
THE END](https://image.slidesharecdn.com/xiicomputerscience20780131-210515033350/85/Computer-Science-XII-Hissan-2078-1-320.jpg)
Computer Science XII - Hissan 2078
- 1. Sub Code: 230 HISSAN – Grade XII Pre- Board Examinations 2078 Computer Science Program: Science F.M:75 Time : 2.15 hrs Candidates are required to give their answers in their own words as far as practicable. The figures in the margin indicate full marks. GROUP A Long answer questions Attempt any FOUR questions [4 10=40] 1. What is string? Explain any four string handling functions with example. [10] 2. a) Describe while loop with example. [5] b) WAP to check whether the given number is exactly divisible by 3 or not. [5] 3. Write a program which asks to enter 10 integer numbers and find the sum of the numbers and also find the greatest number. [10] 4. a) Differentiate between structure and union. [5] b) Define class in OOP. [5] 5. a) What is DBMS. Define the terms data redundancy and inconsistency. [1+2+2] b) Explain pointer with example. [5] GROUP B Short answer questions Attempt any SEVEN questions [7 5=35] 6. Describe system analysis phase of SDLC. [5] 7. Define database language. Differentiate between DDL and DML. [1+4] 8. What is network database model? Explain. [5] 9. Define the term normalization. Write advantages of normalization. [5] 10. What is computer network? Describe LAN. [1+4] 11. Describe Bus and Mesh network topology with diagram. [2.5+2.5] 12. What is OOP? List the characteristics of OOP. [1+4] 13. List applications of AI. [5] 14. List out the components of multimedia and explain any one. [5] 15. Write short notes on: [2.5+2.5] a. Modem b.Encapsulation THE END