1 (i) do (ii) Float (iii) salary12 (iv) Product

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1 Tagore Public School Shastri Nagar Pre-Board Examination 07-8 Class-XII Subject-IP (065) MM: 70. A Identify invalid variable names out of the following. State reason if invalid. (i) do (ii) Float (iii) salary (iv) Product B In a table 'Employee', a column 'Occupation' contains many duplicate values. Which keyword would you use if you wish to list only different values? C D Mr. Ravi, an IT Help Desk executive needs to remotely login a customer s PC to provide him technical support. Suggest a remote access software to him. Tagore College has three departments that are to be connected into a network. Which of the following communication medium, should be used by the college for connecting their departments for very effective High Speed communication? E F While working in Netbeans, Riya has designed a login page where she wants to display Welcome or Try again message depending on the password entered by the user in text field named jtexfield. If password entered is India, Welcome message should be displayed otherwise Try again message should be displayed. Help her in choosing more appropriate statement out of 'If statement' and 'Switch statement'. Give reason for your choice. In Marks column of Student table, for Rollnumber, the Class Teacher entered the marks as 45. However there was a totaling error and the student has got her marks increased by five. Which MySQL command should she use to change the marks in Student table? G Explain in brief any security threats to Computer networks. H Write the advantages of using Unicode to represent text. I Write one example each of URL and IP address. J Charvi wants to delete the records where the 'FirstName' is "Rama" in the 'Emp' Table. She has entered the following SQL statement. An error is being displayed. Rewrite the correct statement. DELETE 'Rama' FirstName FROM Emp; P a g e

2 Write the output of following question (A) char ch= A,ch= B ; System.out.println(ch+ch); System.out.println(ch>ch); (B) int x=40,y=30,z=3,r; R=x+0*y/z+5; System.out.println( R= +R); (C) String str="rajasthan"; System.out.println(str.substring(5,9)+Math.round(3.765)); 3 (A) Convert while loop in for loop. int i =,integer=5; while(i < integer + ) { if(integer % i == 0) System.out.println(""+i); i+=; } (B) Rewrite the following if else statement using switch case statement char ch= p ; if((ch == p ) (ch == P )) System.out.println( Platinum ); else if((ch == g ) (ch == G )) System.out.println( Gold ); else if((ch == s ) (ch == S )) else System.out.println( Silver ); System.out.println( Normal ); 4 A How domain name related to an IP address? B What does 'XML' stand for? Create a sample page in xml? C How is firewall useful in ensuring network security? D Satyam is designing a frame in Netbeans containing list box. Help him in writing suitable Java statement to extract selected item from a given listbox named jlist. P a g e

3 E What are the facilities provided by server? F Explain Inheritance and polymorphism in object oriented programing? G What is Referential Integrity H What is the use of union in sql 5 A A table named Games has the following contents: GCode GameName Number_of_Player PrizeMoney 0 Carom Board Badminton Table Tennis Write the output that will be displayed by statements (i) and (ii). Set autocommit =0; Insert into Games values(05, Chess,3,7000); Savepoint s; Rollback; Select * from Games;.(i) Alter table Games drop column prizemoney; RollBack; Select * from Games; (ii) B Identify e-governance and e-learning application from the following i) On-line experiments in a virtual laboratory of a college. ii) On-line application submission for change of address in the Adhar. iii) On-line bill payment of Mobile bill. iv) On-line tutorials for cloud computing. C Mr. Sanjay, a banking professional want to enroll himself in an e-learning course. Mention him any two challenges of e-learning. 6 A Seema is a junior programmer at Avon Shoe Factory. She has created the following GUI in Netbeans. 3 P a g e

3 items namely Shoes, Sandals and Slippers are manufactured by the factory. A buyer can buy more than one item at a time. Each pair of shoes costs `,500.00, each pair of sandals costs `,000.

4 3 items namely Shoes, Sandals and Slippers are manufactured by the factory. A buyer can buy more than one item at a time. Each pair of shoes costs `,500.00, each pair of sandals costs `, and each pair of slippers cost ` The item bought will be selected by the user and the Quantity (number of pairs) bought will be entered by the user. Amount to be paid for that item will be displayed in front of the item. For example if Shoe is selected and Quantity entered is 0, then Amount should be displayed as Help Seema write code for the following : (a) When Calculate button is clicked, the amount should be displayed in front of each item (in the appropriate textfield) and Total amount (sum total of all the amounts) should be displayed in the appropriate textfield. (b) When Clear button is clicked, all the Textfields and Checkboxes should be cleared. (c) When Stop button is clicked, the application should close. 3 6 (B). Create Student registration form in HTML.. In a database there is a table Cabinet. The data entry operator is not able to put duplicate values in a column of Cabinet? What may be the possible reason(s)? 3. What is the difference between HAVING and WHERE clauses? Explain with the help of an example. 4. There are two table T and T in a database. Cardinality and degree of T are 3 and 8 respectively. Cardinality and degree of T are 4 and 5 respectively. What will be the degree and Cardinality of their Cartesian product? 4 P a g e

To Display list of all the shops with sales less than 30000, in ascending order of shop name. 4. Display the city along with sum of sales for each city. 5.

5 7 (A) Write sql command for the statement I to vi and give output for SQL Queries (VII) to (VIII) on basis of the table shop Table: Shop. Display the name of all shops which are in Area South and sale more than Average Sales.. List name of all shop where cust_percent is more then 65 and less then To Display list of all the shops with sales less than 30000, in ascending order of shop name. 4. Display the city along with sum of sales for each city. 5. To display all the columns where rating is A in the descending order of area. 6. To display all the Area where more than on shop is there. 7. Select avg(sales) from Shop where city= Delhi ; 8. Select truncate(cust_percentage,0) from Shop 7 (B) In a database create the following tables with suitable constraints : Table: Student Table: Sports 5 P a g e

6 . Display the Admission number, name, class, section, and roll number of the students whose grade in Sports table is 'A'.. Display the name and phone number of the students of class who are play some game. 3. Display the Number of students with each coach. 4. Display the names and phone numbers of the students whose grade is 'A' and whose coach is Narendra. 7 C Rahul working in TCS Company. He want to create controls on a form for the following operation choose appropriate controls from Text box, Label, Radio Button, List box, check box and command Button.. Enter name of the Employee. Select Department form a given five name 3. Job location any two from given ten 4. To Submit the form. 6 P a g e

7 Tagore Public School Shastri Nagar nd Pre-Board Examination 07-8 Class-XII Subject-IP (065) Date: MM: 70. A After realizing the issues with proprietary software, Ms. Sunita has decided to use only Open Source Software. Suggest any one suitable open source software to her, for each of the following categories: i. Operating System ii. Browser B Why Gatway is used in a network? C What is Domain Name Resolution? D How is it easier to diagnose fault in Star topology than in Bus topology? E Consider the statement : choice = Y ; What is the data type of variable choice? Write a Java statement to declare the variable choice. F Write the following statement using IN Operator Select * from employee where Dept= Medical Dept= Education ; G Explain why the following queries give different outputs on execution: i. SELECT COUNT(ENAME) FROM EMP; Output: 5 ii. SELECT Count(*) FROM EMP; Output: 8 H Write the value that will be assigned to variable x after executing the following statement : x = * 0/5; I J Geetanjali had created a table Customer in the database Test. Immediately after the successful creation of the table, she wrote the Rollback command to undo the creation of the table. Did she execute rollback successfully? Explain. Priya was creating a table Dance_Student but she forgot to add primary key on student_id column write command to add primary key after table creation. (A) Write the output of following question Select pow(instr('jaipur','u'),); (B) Rewrite the following code using switch case: int day=integer.parseint(jtextfield.gettext()); if(day>= && day<=5) joptionpane.showmessagedialog(this, "Working Day"); else if(day>=6 && day<=7) joptionpane.showmessagedialog(this, "Off Day"); else joptionpane.showmessagedialog(this, "Invalid Entry"); (C) Mention any two social and economic benefit of ICT. 7 P a g e

8 (D) String str="rajasthan"; System.out.println(str.substring(5,9)+Math.round(3.765)); (E) Ariya has typed the following comments. Write the comments using another way. //This Application is designed on //it is java application 3 (A) What will be the output of given code: int i=; while(i<=0) { i+=3; System.out.println(i*7); } (B) The following code has error(s). Rewrite the correct code underlining all the corrections made : int n=5,int i=,f=; do; { f=f*i; i++; while(i<=n) jtextfield.settext(""+f); (C) What will be the output after executed this loop: int n=0; for (int i = 3;i<=39;i=i+n) { n = n + ; if(n%==0) System.out.println(i); else n=n+; } 4 A How is a database related to a table? B Explain the following statement with the help of example : In a transaction either all the SQL statements be committed or all rolled back. C How do networks reduce hardware costs of an organization? Explain with the help of example. D Name two properties and two methods that are common in jlist and jcombobox E Define class and object with an example? F Define any two math and any two string class function in java with example? 5 A Differentiate between. Procedural and oops programming.. GSM and CDMA. 3. If else And switch 4. Phonetic Text Entry And Keymap Based Entry 5. CHAR And VARCHAR B 8 P a g e. What is the range of short data type in java? How much space it occupy in memory?. Write symbol and one example of conditional operator in java?

3. What are three types of Dialog box in java? Write one example for each. 6 A Ms. Angela works as a programmer in a Bus Tour Company named Heritage Experiences.

9 3. What are three types of Dialog box in java? Write one example for each. 6 A Ms. Angela works as a programmer in a Bus Tour Company named Heritage Experiences. Groups of people come and reserve seats. There are 3 stopovers for the bus. First stop is at Alwar, second at Jaipur, third at Udaipur. A group may choose any one destination out of Alwar, Jaipur and Udaipur. Ms. Angela has designed a software to compute charges to be paid by the entire group. A screenshot of the same is shown below. A group can opt for one destination out of Alwar / Jaipur / Udaipur. If the group is Frequent Traveller Group, the group gets a 0% discount on Total charges. Help Ms. Angela in writing the code to do the following (i) After selecting appropriate Radio Button and checkbox (if required), when Calculate Charges button is clicked, Total Charges, Discount Amount, Amount to Pay should be calculated and displayed in the respective text fields. 3 The Charges per person for various destinations are as follows : Destination Amount(in `) Alwar per person Jaipur per person Udaipur per person Total Charges is obtained by multiplying Number of People in Group with Amount per person. If Frequent Traveller Group checkbox is selected. Discount Amount is calculated as 0% of Total Charges. Otherwise Discount Amount is 0. Amount to Pay is calculated as : Amount to Pay = Total Charges Discount Amount. (ii) When CLEAR button is clicked, all the textfields, radio button and checkbox should be cleared. 9 P a g e

10 (iii) When EXIT button is clicked, the application should close. 6 (B) 5. Create a HTML page which contain list of five input devices and a printer image. 6. What is the use of default in a switch statement. 7. Explain TCP/IP protocol. 8. How XML tags are different from HTML Tags? 9. How does e-governance help reducing corruption? 7 (A) Write the query on basis of given table Loan Accno Cust_Name Loan_amount Instalments Int_Rate Start_Date Interest R.K. Gupta S.P. Sharma K.P. Jain NULL M.P Yadav S.P. Singh P.Sharma Display the int_rate of all the loans started after List all cust_name whose loan_amount is greater than in descending order. 3. Display all record whose name start with S and start year is Add a new column gender and store male to all records. 5. Display all record whose int_rate is null. 6. Add Rs. 500 to Loan_amount whose loan start in January. 7. Delete all records of Accno 3,6,9. 8. Increase the int_rate by 0% (B) Table : Items Table: Bills I_Code Name Category Rate 00 Masala Dosa South Indian Vada Sambhar South Indian Idli Sambhar South Indian Chow Mein Chinese Dimsum Chinese Soup Chinese Pizza Italian Pasta Italian 5 Billno Date I_Code Qty Based on these tables write SQL statements for the following queries:. Display total quantity of each item sold but don't display this data for the items whose total quantity sold is less than 3.. Display the details of the bill records for which the item is 'Dosa'. 3. Display the bill records for each Italian item sold. 8 0 P a g e

XXXXXXXXXXXXXXXXXXX First Pre-Board Examination, Informatics Practices

XXXXXXXXXXXXXXXXXXX First Pre-Board Examination, Informatics Practices Series SOS Code No. 90 Roll No. Candidates must write the Code on the title page of the answer book. Please check that this question paper contains 7 printed pages. Code number given on the right hand