CBSE Class 12 Informatics Practices Question Paper 2010 (1). 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.
Q1.(a) Name any four application areas of business computing.
(b) What are the following software used for?
(c) Expand the terms OSI and GNU.
(d) Mention any two types of relationships that can be set up between two relations. Explain the concept of ER Model using the case study of a Air Ticketing System that has three entities Ticket, Passenger and Flight. Assume that each passenger can buy more than one ticket.
Q2.(a) Differentiate between the Do While........Loop and Do.........Loop While loops of Visual Basic giving a suitable example of each.
(b) Name and explain the usage of any two types of procedures available in Visual Basic.
(c) What are data-bound controls? Name any two intrinsic data-bound controls that can be used on a form.
(d) Explain the term ADO. Name and explain three different methods used to navigate through ADO recordsets.
Q3. (a) Differentiate between TCL and DCL commands. Name one TCL and one DCL command.
(b) Name the keyword used to:
(i) Allow duplicate rows in a query.
(ii) Avoid duplicate rows in a query.
(c) Mention any two limitations of SQL.
(d) Define the terms Primary key and Alternate key with respect to a database.
(e) Differentiate between Before and After type triggers.
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