CBSE Class 12 Informatics Practices Question Paper 2007 (5)

CBSE Class 12 Informatics Practices Question Paper 2007 (5). Students can download the last year question papers using the link below. Free download of examination question papers with solutions.Last 10 year question papers should be practised to get better marks in examinations.

1. (a) Define (i) Freeware (ii) Shareware 

(b) Write one point of difference between front end and back end with one example of each. 

(c) Write one example each of “one to many” and “many to many” relationships between two entity sets. 

(d) What is the purpose of Data Mining? 

(e) During System Development Life Cycle, in which phase is the scope and true nature of problem determined? Explain in brief with the help of an example

2.(a) How many value(s) does a Procedure and a Function return ? 

(b) Distinguish between Single Document Interface and Multiple Document Interface. Write one example each of SDI and MDI type application. 

(c) What is Selection statement ? Name any two selection statements that VB provides. 

(d) What are Events ? What are Event Procedures ? How are they related ? 

(e) What is a Bound Control? Name any two data aware properties of bound controls. 

3. (a) Which statement must be present in a simple loop (Loop.. Endloop) so that it does not become an infinite loop ? 

(b) Suggest parameters mode (IN/OUT/IN OUT) for the following : 

(i) Parameter can be used as a normal variable.

(ii) Passed value must not get changed.

(c) Write two points of differences between SQL and PL/SQL. 

(d) How are triggers similar to Constraints ? Write one point. 

(e) What is the purpose of cursor in PL/SQL ? Name the types of cursors used in PL/SQL. 

(f) Why do we use Roll back statement ? Explain in brief with the help of an example.

Please click the link below to download pdf file of CBSE Class 12 Informatics Practices Question Paper 2007 (5).