CBSE Guess Papers Informatics Practices Class XII [Set-2]

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CBSE Guess Paper 2009

Informatics Practices

Class XII

NOTE:

(i) All questions are compulsory. .

(ii) Answer the questions after carefully reading the text.

Section – A

1. Answer the following Questions :

a) What is information system? Write different types of information system? 2

b) What do you mean by Three Tier System? 2

c) What is shareware? How is it different from freeware? 2

d) Define – (i) Freeware ii) Shareware iii) OpenSource iv) Tomcat 2

e) What is the purpose of Data Mining? 2

2. Answer the following questions:

a) What is variable lifetime? Which variable has longest lifetime? 2

b) “Oracle Database is an example of an RDBMS” Justify this statement . 2

c) What is the extension of a module file and code file in VB. 2

d) Explain the following terms: 2

i) Startup Form ii) Load Statement iii) Show Method iv) Event

e) Explain the term Data Provider and Data Control. 2

3. Answer the following Questions :

(a) Write any two advantages PL/SQL over SQL. 2

(b) Define database Transaction. What is the role of SavePoint in database transaction? 2

(c) “Visual Basic is not an Object Oriented Language” Justify this statement. 2

(d) What is trigger? Name the statements for which triggers are executed. 2

(e) Write the differences between DDL and DML. 2

SECTION B

4. Read the following case study and answer the questions that follow.

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