KENDRIYA VIDYALAYA SANGATHAN BLUE PRINT INFORMATICS PRACTICES CLASS XII

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1 KENDRIYA VIDYALAYA SANGATHAN BLUE PRINT INFORMATICS PRACTICES CLASS XII TOPICS SA() SA() LA(6) TOTAL Networking & Open 4(4) 3(6) - 7(0) Source software Programming in Java 7(7) 6() (6) 4(5) RDBMS 6(6) 6() () 4(30) IT Applications () (4) - 3(5) TOTAL 8(8) 7(34) 3(8) 38(70) NOTE: Marks are given inside the bracket and the number of questions outside the bracket.

2 KENDRIYA VIDYALAYA SANGATHAN MODEL QUESTION PAPER-6 SUB: INFORMATICS PRACTICES (065) CLASS XII M: 70 TIME: 3 Hrs (a) (e) (f) (g) (a) Ankita wants to upload and download files from/to a remote Internet server, write the name of the relevant communication protocol, which will let her do the same. (i) (ii) (iii) Grijesh is confused about Wi-Fi. Whether it is: a Type of network cable. set of popular technologies and standards for wireless computer networking. set of computer programs that help people log in to the Internet. Jai Khanna is confused between the terms Domain Name and URL. Explain the difference with the help of appropriate examples of each. Write one advantage and one disadvantage of bus topology. Arrange the following communication channels in ascending order of their data transmission rate. Ethernet cables, Optical fiber, Telephone cable, Co-axial cable. What is the purpose of Ogg Vorbis? Jayanto Das is confused between Shareware and OSS. Mention at least two points of differences to understand the same. Why Java is platform independent? What method would you use, in order to simulate a button s (namely OkBtn) click event, without any mouse activity from user s side? Write a function in java that takes cost price and selling price of a good as input and returns the profit made by the shopkeeper. How many times does the following loop execute? What is it type (Entry or Exit controlled loop)? int x=,y=0; while (x<=y) { JOptionPane.showMessageDialog(null, +x); x=x+3; } (e) Face attribute is used with which HTML tag and what is its use? (f) By which attributes the spacing in cells of table is controlled? (g) Define the following terms: XML, CSS.

3 3 (a) (e) Hari wants to list the names of all the tables in his database namely Status. What commands should he write at MySQL prompt to get this result? A table Sports in a database has 3 columns and 30 rows. Another similar table Sports has 3 columns and 50 rows. All the records from Sports are added into Sports table. What is the degree and cardinality of Sports table now? Differentiate between primary key and foreign key with a suitable example. Meena uses an EMP table with following columns: NAME, SAL, ID, DNAME She needs to display names of employees who have not been assigned any department or have been assigned Pathology department. Pathology dept s names end with Pathology. She wrote the following query: SELECT NAME, SAL FROM EMP WHERE DNAME = NULL AND DNAME = Pathology% ; But the query is not producing result. Identify the problem and write the correct query. What will be the output of following queries on the basis of employee table: empid ename salary A Bob NULL B John 4000 B Tom 5000 (f) (g) 4 (a) (i) (ii) select avg(salary) from employee; select count(salary) from employee; Name the package you need to import for performing database connectivity. Suppose a variable Val assign a value 00, write the possible statements to display the value in a JLabel control (jlabel). What will be the contents of jtextfield and jtextfield after executing the following code: String name= Hello World ; name= name.tolowercase( ); String name= name.replace(,! ); jtextfield.settext(name); jtextfield.settext(name);

4 (e) (f) Rewrite the following program code using for loop: int num=6; int temp=num; while(num>=) { temp=temp-; if (temp%==0) System.out.println( Is even ); else System.out.println( Is odd ); num=num-; } What will be the contents of jtextarea after executing following statement: jtextarea.settext("pure\nobject\noriented\tprogramming"); What will be the value of x and y after execution of the following code? int x, y=0; for(x=;x<=5;++x) y=x++; --y; Identify the output in the following code where numtf contains and numtf contains 34. int value= Integer.parseInt(numTF.getText( ) + numtf.gettext( )); JOptionPane.showMessageDialog(null, + (value+)); Rewrite the correct code underlining all the corrections made: Int i; j=5; i== j+5; if(i=j) { jtextfield.settext( i and j are unequal ); } else jtextfield.settext( they are not equal ); break; jtextfield.settext( i and j are equal );

(g) K.K.Group of hotels has computerized it booking system. The following is the Booking From along with details: ( you may assume default names in sequence or suitable name for controls).

5 (g) K.K.Group of hotels has computerized it booking system. The following is the Booking From along with details: ( you may assume default names in sequence or suitable name for controls). 5 i) Write the code for exit button so that when a user clicks on exit button Application will be closed. Also display a message Thank you for your nice visit before exiting the application. [] 5 (a) ii) When the command button Calculate Charges is clicked all the charges along with discount & Total computed and displayed. [3] Then criterion for the calculation of charges is given below: Total = (Room charges + fooding charges - discount) Single Room:- Rs.400 per day Double Room :- Rs.700 per day Breakfast:- Rs.00 per day Lunch: Rs.80 per day Dinner: Rs.00 per Day Gold card member will be given 0% discount on total charges. Sheela needs to remove all the rows in the Sales table to release the storage space without to remove the table structure. Write the statement that she should use? Jacob is not clear about the difference between the following two statements: (i) select (9-6) *; (ii) select (9-6) * from EMP; Help him to understand the difference between these two statements if emp table having four rows.

6 Consider the table Hospital given below. Write commands in MySQL for (i) to (iv) and output for (v) to (vii). 7 N o Name Age Department DateOfAdm Charges Sex Sandeep 64 Surgery 3/0/ F Ravina 4 Orthopedic 0/0/98 00 F 3 Karan 45 Orthopedic 0/0/97 00 M 4 Tarun Surgery 0/0/ F 5 Zubin 36 ENT /0/98 50 M 6 Ketaki 6 ENT /0/ F 7 Ankita 9 Cardiology 0/0/ F 8 Zareen 45 Gynecology /0/ F 9 Kush 9 Cardiology 3/0/ M 0 Shailya 3 Medicine 9/0/ F (i) To show all information of patients who are in Orthopedic department from hospital table in descending order of their age. (ii) Increase the charges of male patient in ENT department by 4%. (iii) Display a report listing name, age, charges and amount of charges including VAT as % on charges, name the column as total charges. (iv) To count the number of patients with Age < 30. (v) (vi) SELECT AVG(Charges) FROM HOSPITAL WHERE SEX= F ; SELECT COUNT(DISTINCT Department) FROM HOSPITAL; (vii) SELECT NAME FROM HOSPITAL WHERE NAME LIKE _u% ; 6 (a) Write an MySQL query to create the table Menu with the following structure: Field Type Constraint ItemCode Varchar(5) Primary Key ItemName Varchar(0) Not null Category Varchar(0) Default Chinese Price Decimal(5,) >00

7 Consider the tables PEOPLE and PROPERTIES given below: PEOPLE Name Phone PI D Aisha Karan Rosy (a) PROPERTIES PID SPI D Farm_Name Old house farm 3 Nanada s farm 3 Will s farm 3 4 Tall farm 4 5 The florist With reference to these tables, write command in SQL for (i) and (ii) & output for (iii). (i) (ii) (iii) (iv) (v) Display the name and PID of each person who has a farm. Display the farm_name of farm(s) owned by Karan. SELECT Name, Phone, Farm_Name FROM PEOPLE join PROPERTIES On PEOPLE.PID = PROPERTIES.PID; Which column in the PROPERTIES table is the foreign key? How many rows will be there in non equi- join of these two tables? What is the impact of e-learning sites on students learning process? Name any two web portals involved in e-business. How has today s technology contributed to e-governance? Vijay works for the school. He wishes to create controls on a form for the following functions. Choose appropriate controls from Text Field, Text Area, Label, Option Button, Check Box, List Box, Combo Box, Button. S.No Control used to Control Enter Admission No Enter Gender 3 Choose subjects from list of subjects 4 Clear the form

8 INFORMATICS PRACTICES (065) ANSWER KEY Q. (a) FTP mark for correct answer, HTTP ( ½ Marks) mark (ii) ( mark for correct answer) mark mark for correct deference and mark for suitable example. marks for advantage & for disadvantage marks (e) Telephone Cable, Ethernet Cable, Co-axial cable, Optical Fiber ( mark). mark (f) mark for correct explanation. mark (g) mark for each correct difference. marks Q. (a) mark for correct explanation with use of Byte code. mark.doclick() mark (e) private float calprofit( float cp, float sp) { float pr= sp-cp; Return (pr); } [ mark for proper prototype and mark for method body] 8 times, Entry controlled loop. [ marks for loop count & mark for loop type] Font tag, used to set the font face/type [ ½ mark for Tag & ½ for purpose] marks marks mark (f) CELLSPACING of Table tag. ( mark for correct answer) mark (g) mark for each. marks

9 Q.3 (a) Show Tables; ( mark for correct answer) mark Degree 3 and Cardinality 80 ( ½ for each) mark marks for correct difference and mark for example. marks Select name, sal from EMP where Dname IS NULL and dname= %Pathology ( mark for each correction) marks (e) (i) 4500 (ii) ( mark for each) marks (f) java.sql.* mark (g) jlabel.settext( +val); mark Q.4 (a) hello word marks hello!word ( mark for each correct output) int temp=num; for(num=6; num>=; num=num-) { temp=temp-; } if (temp%==0) else System.out.println( Is even ); System.out.println( Is odd ); ( mark for use of for loop & mark for placement of condition and counter) Pure Object marks mark Oriented Programming x= 7 and y=4 marks

10 (e) 35 mark (f) (g) Int i, j=5; i = j+5; if(i == j) { jtextfield.settext( i and j are unequal ); } else ( ½ for each correction) (i) // to do code for Exit button jtextfield.settext( they are not equal ); jtextfield.settext( i and j are equal ) JOptionPane.showMessageDialog(null,"Thank you for your nice visit"); System.exit(0); ( mark for each command) (ii) //to do code for Calculate Charges Button float day,rmchg, fchg, disc,tamt; day =Integer.parseInt(jTextField.getText()); if (jradiobutton.isselected()) else rmchg=day*400; rmchg=day*700; // calculate food charges for all combination of check boxes if(jcheckbox.isselected() && jcheckbox.isselected() && fchg=day*( ); if(jcheckbox.isselected() && jcheckbox.isselected() &&! marks +3 marks

11 fchg=day*(00+80); if(jcheckbox.isselected() &&! jcheckbox.isselected() && fchg=day*(00+00); if(jcheckbox.isselected() &&! jcheckbox.isselected() &&! fchg=day*00; if(! jcheckbox.isselected() && jcheckbox.isselected() && fchg=day*(80+00); if(! jcheckbox.isselected() && jcheckbox.isselected() &&! fchg=day*80); if(! jcheckbox.isselected() &&! jcheckbox.isselected() && fchg=day*00; if(! jcheckbox.isselected() &&! jcheckbox.isselected() &&! fchg=0; tamt=rchg+fchg; if (jcheckbox4.isselected()) else dis=tamt*0/00; dis=0; tamt=tamt-dis; jtextfield3.settext( +rchg); jtextfield4.settext( +fchg);

12 jtextfield5.settext( +dis); jtextfield6.settext( +tamt); ( mark for variable declaration, mark for check box condition and mark for calculation and display) Q.5 (a) Delete from Sales; mark (i) 36 (ii) 36 ( mark for each correct answer) mark (i) select * from Hospital where Department= Orthopedic order by Age; (ii) Update Hospital set charges= charges +(charges*4/00) Where Department= ENT ; (iii) select name, age, charges, charges+(charges*/00) as Total Charges from Hospital; (iv) select count (*) where age<30; (v) 400 (vi) 6 (vii) Zubib Kush 7 mark ( mark for each) Q.6 (a) Create table Menu (ItemCode varchar(5) Not Null Primary Key, marks ItemName varchar(0) Not Null, Category varchar(0) default Chinese, Price decimal(5,) check price>00); ( mark for create command with column name & data type and mark for constraints) (i) select name, PID from People Or where PID in (select PID from Properties) select name, PID from People, Properties ++ marks ( mark to be given for joining

13 where People.PID=Properties.PID; tables) (ii) select Farm_name from Properties where PID = (select PID from People where Name= Karan ) Or select Form_name from People, Properties where People.PID=Properties.PID and Name= Karan ; (iii) Aisha Old house farm Karan Will s farm Rosy Nanada s farm Rosy Tall farm (iv) PID (one mark) (v) rows (one mark) + Q.7 a) Minimum Two impact (½ mark for one correct impact) mark b) ( ½ mark for each correct web site name) mark c) Minimum points answer (½ mark for each) mark d) ( ½ mark for each correct/suitable answer) marks

KENDRIYA VIDYALAYA SANGATHAN, ERNAKULAM REGION INFORMATICS PRACTICES CLASS XII PRE-BOARD-I

Max Mark: 70 KENDRIYA VIDYALAYA SANGATHAN, ERNAKULAM REGION INFORMATICS PRACTICES CLASS XII PRE-BOARD-I Instructions: (i) All Questions are compulsory (ii) Programming language : Java, SQL (iii)read the