CBSE Sample Paper 2009 Class XII Informatics Practices (IP)Join UsOrkut Facebook Twitter Yahoo Group Google Group SMS AlertsSample Paper 2009 Class XII Subject Informatics Practices Time allowed: 3 hours Maximum Marks: 70 NOTE: (i) All questions are compulsory. (ii) Answer the questions after carefully reading the text.Section A1. Answer the following Questions: a) What is information system? Write different types of information system? 2 b) What does object modeling technique mean? Why do we use UML? 2c) How can you differentiate interviewing from questionnaires?.
2 d) Define Generalization and Specialization. 2 e) What is Metadata and data dictionary? Answer the following questions: a) What is variable lifetime? Which variable has longest lifetime? 2 b) What is Container control? How can a picture box be used as a container?
2 c) Write the differences between ADODB and ADODC data control? 4 d) Which loop executes when the given condition is False?
CLASS XII-IP-PRACTICAL QUESTIONS AND SOLUTIONS. (1) Make Discount and Net amount uneditable. (2) Write codes for calculate Discount. DOWNLOAD INFORMATICS PRACTICES (IP) PROJECTS FOR CBSE +2' in Just Rs 300 Download Latest CBSE Class XII Informatics Practices And Computer Science Latest Projects, Imp. Notes, Practical File (latest syllabus 2011).
Explain with an example. Answer the following Questions: a) State any two advantages of PL/SQL over SQL. 2 b) What is trigger? Name the statements for which triggers are executed.
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2 c) Write the differences between DDL and DML/ 2 d) Write the differences between procedure and function? 2 e) Define Transaction and define the different types of transaction? 2 Section BQ. Read the following case study and answer the questions that follow. Paradise Company is a dealer of goods. The companys programmer has made the following from to calculate the total cost of the order of the customers.
The total cost is calculated as per the following criteria. For Units Price For wholesalers Price for Retailers 1-30 Rs. 50/Special customers are given a discount of 20%.Object TypeObject NameDescriptionForm Text BoxFrmParadise txtUnitOrdered txtTotalCostMain Form To enter Unit Ordered To show calculated cost To be checked if customer is special To Provide customer typeCheck Box Option ButtonchkSpCust optWholesalerl optRetailer cmdCalcCostTo calculate total cost To clear the entered values To close the applicationCommand ButtoncmdClear cmdQuita. Write the commands to disable the text boxes txtPercentage and txtGrade. Write the code for text boxes txtFirstTerm or txtSecondTerm which accept only numeric data.
Write the code for cmdCalcPer to calculate the percentage after finding the total marks of first term and second term (assuming that both marks are out of 100). Also ensure that NCC cadets get an increment of 5% in their percentage.
Write the code for cmdCalcGrade to calculate the grade depending on the stream selected according to the criteria given above. Write the code for cmdClear command button to clear all the text boxes and check box. Also write the code for cmdExit to close the application.