CBSE Class 12 Informatics Practices Question Paper 2007 (3)

CBSE Class 12 Informatics Practices Question Paper 2007 (3). 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.

Q. 1. Answer the following questions:

i. Explain the term Data Dictionary using suitable example. 

ii. What is an Inventory control system? Name any two entities or tables that could be a part of this system. 

iii. What do you understand by a Many-to-one relationship? Explain with example. 

iv. Expand the term UML and explain its usage. 

v. Explain the concept of client-server computing with the help of examples. 

Q. 2. Answer the following questions:

i. What do you understand by the term IDE? Why is Visual Basic called an IDE? 

ii. Write the names of any two properties, which are common to textbox object, label object and command button object. 

iii. Differentiate between the Load and Show methods of a form object. 

iv. What is th purpose of the ADO Data Control? Name the two properties of the ADO Data Control that can be dynamically set during run-time to change the database. 

v. Differentiate between a form module and class module of Visual Basic. 

Q. 3. Answer the following questions:

i. What are DCL commands? Name any two DCL commands. 

ii. State the difference between SQL and PLISQL. 

iii. Explain the usage of NEXT MONTH function of SQL with the help of an example. 

iv. What is the use of the %ROWTYPE attribute? Explain with the help of an example. 

v. What is a trigger? Name two types of triggers available in PL/SQL.

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