THE INDIAN COMMUNITY SCHOOL, KUWAIT

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THE INDIAN COMMUNITY SCHOOL, KUWAIT SERIES : I MODEL / 07-08 CODE : N 065 TIME ALLOWED : 3 HOURS NAME OF STUDENT : MAX. MARKS : 70 ROLL NO.

1 THE INDIAN COMMUNITY SCHOOL, KUWAIT SERIES : I MODEL / CODE : N 065 TIME ALLOWED : 3 HOURS NAME OF STUDENT : MAX. MARKS : 70 ROLL NO. :.. CLASS/SEC :.. NO. OF PAGES : 5 INFORMATICS PRACTICES ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ a) What do you mean by Domain Name Resolution? b) How is Denial of service attack, a threat to Network security? c) Vidya College has three departments that are to be connected into a network. Which of the following communication medium (out of the given options), should be used by the college for connecting their departments for very effective High Speed communication Coaxial Cable Optical Fiber Ethernet Cable Also name the type of network (out of PAN/LAN/WAN) formed. d) Give one example of URL And one example of domain name e) Distinguish between Open Source Software and Proprietary Software. a) What will be the output after executing the following loop int x= 0, y= 0,j; for( j=3;j<6;j+=) x+=j; y+=++x; System.out.println(x+y+j); b) Write a method to return the sum of all odd numbered digits of a number c) Differentiate between DEFAULT and CHECK constraint of table with example. d) How HTML is different from XML? Mention any two point of difference. e) Rewrite the HTML code after correcting errors. Underline each correction. <html> <title>html </head> <body> </title> <p>learning HTML is fun 3 a) Write the following statement using OR logical operator SELECT first_name, last_name, subject FROM studentdetails WHERE subject IN ( Maths, Science ); b) How is NULL value different from 0 (zero) value? c) Write the UPDATE statement in MySQL to increase commission by in the Commission column in the Emp table.

2 d) Define a class with reference to Object Oriented Programming e) Write the purpose of linewrap property of TextArea. f) Write the values that will be assigned to a, b, c and m after executing the following Java code : String p, q, r, a, b, c; int m; p = BOARDEXAM08 ; q = Learning Java ; r = ProgrammingIsFun ; a = p.substring(3,6); b = q.concat(p); c = r.trim(); m = c.length(); g) Which property of the radio button should be set to make the radio buttons mutually exclusive? h) Write html statement to create an ordered list starting with c. 4 a) Write Java statement to make a jtextfield uneditable during execution b) What will be displayed in jtextarea after execution of the following code String p, q, r, a, b, c; int Z=3; do { jtextarea.append(integer.tostring(z++)); Z=Z+; }while(z<=0); c) Which property is to be used during design time to add a list of countries in the list box? The following code has error(s). Rewrite the correct code underlining all the d) corrections made : int start= ; end=0; do; { start=start+start; while(start<=end) e) Rewrite the following code using if else if statement: switch ( depcode) { case : case : allowance =3500; break; case 3 : allowance =000; break; default : allowance =500; } f) Which property is used for setting the password charcter as $ g) A software is designed in ABC Car Rental Company to compute charges to be paid by the client.a screenshot for the same is shown as below:

A client can take any car out of Deluxe/SemiDeluxe/Ordinary for rent. A client can also opt for service of a guide. Charges vary depending on the type of car opted.

3 A client can take any car out of Deluxe/SemiDeluxe/Ordinary for rent. A client can also opt for service of a guide. Charges vary depending on the type of car opted. Charges of service of Guide are extra. Write the code to do for the following: (i) After selecting appropriate Radio Button and checkbox (if required ), when CALCULATE button is clicked, Amount, Guide Charges and Total Amount should be calculated and displayed in the respective text fields. Category of Car Amount(in Rs.) Deluxe Car 000 per day Semi Deluxe Car 800 per day Ordinary Car 700 per day 4 (ii) (iii) Amount is obtained by multiplying per day charges of Car with number of days for which the car is taken. If Guide Required checkbox is selected, Guide charges per day are Rs Guide Charges is calculated as :Car required for No. of days * 500 Total Amount= Amount + Guide Charges When CLEAR button is clicked, all the textfields and checkboxes should be cleared. When CLOSE button is clicked, the application should close.

4 5 a) b) While creating a table named Employee, Mr. Rishi got confused as which data type he should chose for the column EName out of char and varchar. Help him in choosing the right data type to store employee name. Give valid justification for the same. Amit works as a database administrator in a Multinational bank. He wants to undo the changes made in the current transaction. Suggest to him a suitable MySQL command for the same. c) What will be the output of the following queries on the basis of Employee table: EmpId EName Salary A00 Bob NULL A00 John 3400 A003 Tom (i)select avg(salary) from Employee; (ii) Select Salary+00 from Employee where EmpId='A00'; d) (b) Consider the following tables ACTIVITY. Write SQL commands for the statements (i) to (iv) and give outputs for SQL queries (v) to (vi) Table: ACTIVITY ACode ActivityName ParticipantsNum PrizeMoney ScheduleDate 00 Relay 00x Jan High jump Dec Shot Put Feb Long Jump Jan Discuss Throw Mar-004 (i) (ii) (iii) (iv) (v) (vi) To change the PrizeMoney of activity with activityname as Long Jump to 500. To display sum of PrizeMoney for each of the Number of participants groupings (as shown in column ParticipantsNum 0,,6) To display the code and names of activities starting with S To display the contents whose ScheduleDate is earlier than 0/0/004 in ascending order of ParticipantNum. SELECT COUNT(DISTINCT ParticipantsNum) FROM ACTIVITY; SELECT MAX(ScheduleDate),MIN(ScheduleDate) FROM ACTIVITY; ½ ½ 6 a) Write MySQL command to create the table STUDENT with given structure and constraint Table :STUDENT Column_Name DataType (Size) Constraint Admno char(6) Primary Key RollNo int() UNIQUE Name varchar(0) Marks decimal(8,) between and 50

5 b) MobileMaster M_Id M_Company M_Name M_Price M_Date MB00 Samsung Galaxy MB003 Nokia N MB004 Micromax Unite MB005 Sony XperiaM MB006 Oppo SelfieEx MobileStock S_Id M_Id M_Qty M_Supplier S00 MB New Vision S00 MB Praveen Gallery` S003 MB Classic Mobile Store S004 MB A-one Mobiles S005 MB The Mobile S006 MB Mobile Centre Write the SQL query for questions from (i) to (iv) & write the output of SQL command for questions from (v) to (viii) given below:- (i) Display the Mobile company, name & price in descending order of their manufacturing date (ii) List the details of mobile whose name starts with S or ends with a (iii) Display the Mobile supplier & quantity of all mobiles except MB003, (iv) List the name of mobile company having price between 3000 & 5000, (v) SELECT M_Id, SUM(M_Qty) FROM MobileStock GROUP BY M_Id; (vi) SELECT MAX(M_Date), MIN(M_Date) FROM MobileMaster; (vii) SELECT M.M_Id, M.M_Name, M.M_Qty, M.M_Supplier FROM MobileMaster M, MobileStock M WHERE M.M_Id=M.M_Id AND M.M_Qty>=300; (viii) SELECT AVG(M_Price) FROM MobileMaster; 7 Define e-business. Name one popularly used e-business website. a) What is the impact of e-learning sites on students learning process? b) c) What do you mean by infomania? d) Sneha works for a Shopping Mart. Choose the appropriate controls for the following operations out of Text box, Label, Radio Button, List box, Combo box, Check box and Command button ) Enter the Item code ) Select Item Size (from a list of sizes) 3) Enter quantity 4) Submit the form

6 INFORMATICS PRACTICES First Model Exam (Std )08 Answer Key a) The process of translating a domain name to an IP address is called Domain name resolution. b) Denial of service (DoS) is an indication that an attacker (hacker) or unauthorised user has attempted to connect/access data and thus suggests a threat on network security. c) Optical fiber LAN d) The web address is a URL. In this URL is the domain name. e) Source code of Open Source software is available to the user and therefore the user can customize it according to his/her own requirements and capability. Whereas the source code of proprietary software is available only with its vendor/developer. So, it cannot be customized by the user as per his/her requirements. a) 65 (x=9, j=7, y=39) b) mark for the correct method c) Default constraint is used to set a default value for a column that may be used when no value is inserted by the user for that column. Ex Create table student (Gender char() Default M ); Check constraint is used to check the valid values for a column. Ex Create table student (Sal decimal(6,) check (sal>=000 and sal<=5000)); HTML is used to display data and to focus on formatting of data, whereas XML is d) used to describe data and focus on what data is. HTML tags are not case sensitive whereas XML tags are case sensitive. HTML tags are predefined, whereas XML tags are not predefined. XML is used to store and transfer the data over different platforms while HTML is used to design webpages. <html> e) <head> <title>html </title> </head> <body> <p>learning HTML is fun </body> 3 a) </html> SELECT first_name, last_name, subject FROM studentdetails WHERE subject = Maths OR subject= Science ; b) NULL means a value that is unavailable, unassigned or unknown c) UPDATE Emp SET Commission=Commission+00;

7 A class is an abstract user defined data type that is used as a blueprint to define the objects d) of the class. Allows text to be carried over to the next line so that it will stay within a set of defined e) margins. f) RDE Learning JavaBOARDEXAM08 ProgrammingIsFun 6 g) ButtonGroup property h) <ol type= a start=3> 4 a) jtextfield.seteditable(false); b) 369 c) Model property int start=,end=0; //Correction d) do //Correction { start=start+start; } //Correction 3 while(start<=end); //Correction 4 if ( depcode == depcode== ) e) allowance =3500; else if ( depcode == 3) allowance =000; else allowance =500; f) echochar // Calculation of Amount g) (i) if (jradiobutton.isselected()) jtextfield3.settext("" + 000* Integer.parseInt(jTextField.getText())); 4 if (jradiobutton.isselected()) jtextfield3.settext("" + 800* Integer.parseInt(jTextField.getText())); if (jradiobutton3.isselected()) jtextfield3.settext("" + 700* Integer.parseInt(jTextField.getText())); //Calculation of Guide Charges if(jcheckbox.isselected()) jtextfield4.settext("" + 500* Integer.parseInt(jTextField.getText())); //Total Amount jtextfield5.settext("" + (Integer.parseInt(jTextField3.getText())+ Integer.p arseint(jtextfield4.gettext()))); (ii) jtextfield.settext(""); jtextfield.settext(""); jtextfield3.settext(""); jtextfield4.settext(""); jtextfield5.settext(""); jtextfield6.settext( ); jcheckbox.setselected(false); (iii) System.exit(0); 5 a) Varchar would be the suitable data type for EName column as char data type is a fixed length data type while varchar is a variable length data type. Any employee s name will be of variable length so it is advisable to choose varchar over char data type. b) Rollback

8 c) (i) avg(salary) (ii) Salary NULL d) mark for each SQL command. ½ mark for each output 5 6 a) mark for creation of table with proper constraints b) mark for each SQL command. mark for each output 8 7 a) Ans. E-business refers to any form of transaction (exchange) that uses an electronic medium to facilitate the transaction. b) Students can learn at their own pace. A lesson can be revised any number of times at students' convenience. Students can learn lessons at their homes at their convenient time. c) Infomania is the condition of reduced concentration caused by continually responding to electronic communications such as , SMSs, MMSs etc. d) ) Text Box ) Combo Box 3) Text Box 4) Command Button

CompanyCode Donations C C102 NULL C C ENO NAME 1 Anita Khanna 2 Bishmeet Singh

CompanyCode Donations C C102 NULL C C ENO NAME 1 Anita Khanna 2 Bishmeet Singh Series ONS Roll No. SET-4 Code No. 90 Candidates must write the Code on the title page of the answer-book. Please check that this question paper contains printed pages. Code number given on the right hand