<p> http://www.cbseguess.com/</p><p>SAMPLE PAPER-2013</p><p>CLASS XI</p><p>Subject: Informatics Practices</p><p>Time allowed : 3 hours Maximum Marks: 70</p><p>Note: Read the instruction </p><p>1. Attempt all the questions.</p><p>2. Java Language and MySQL are used </p><p>Q1 (a) Which of the following is not hardware : </p><p>(i) Hard disk (ii) Printer (iii) Keyboard (iv) CPU (v) Assembler (vi) A Java Program 1</p><p>(b) Define the terms : (i) nibble (ii) gigabyte 1</p><p>(c) What are the major strengths and weaknesses of computer ? 2</p><p>(d) What are the software classifications? Discuss their functioning in brief. 2</p><p>(e) What is a port? Name some port types briefly. 2</p><p>(f) Write the full forms of the following terms : (i) VDU (ii) MICR (iii) OMR (iv) DVD 2 Q2. Define the following: 10</p><p> a. JVM</p><p> b. Loops</p><p> c. Conditional Statement</p><p> d. Classes and functions</p><p> e. Actual and formal parameters</p><p>Q3. Answer the following. www.cbseguess.com Other Educational Portals www.icseguess.com | www.ignouguess.com|www.aipmtguess.com | www.aieeeguess.com | www.niosguess.com | www.iitguess.com http://www.cbseguess.com/</p><p>(a) What is Write Once Run Anywhere characteristic of Java? 1</p><p>(b) Differentiate between a Text Field and Text Area 1</p><p>(c)What is the difference between if and switch statements? 2</p><p>(d)Name the data types supported by Java? 2</p><p>(e)What are the operators supported by Java ? 2</p><p>(f)Write a program to check wither the given number is even or odd using conditional operator 2</p><p>Q4. Write code for the following: </p><p> a. To obtain a single digit(0-9) and display it in words 3</p><p> b. Virus software Hut has developed the following Interface as shown below. </p><p>Virus S/w Hut</p><p>Name of customer </p><p>Bill amount </p><p>O Cash O Credit Card O Cheque</p><p>Discount </p><p>Net Amount </p><p> www.cbseguess.com Other Educational Portals www.icseguess.com | www.ignouguess.com|www.aipmtguess.com | www.aieeeguess.com | www.niosguess.com | www.iitguess.com http://www.cbseguess.com/</p><p>Calculate Discount Stop</p><p>If Bill amount is > 10,000 than discount is as follow</p><p>Payment Discount Mode </p><p>Cost 15 % </p><p>Credit Card N/L </p><p>Cheque 10 % </p><p>1. Write the code to make the Text Fields for Discount & Net Amount in editable. 2 2. Write code to “Calculate Discount“ button as per given criteria and discount and net 4 amount should be displayed in Text Field. 3. Write code for “Stop“ button to close the interface. 1</p><p>Q5. Define Function. Explain the following function with suitable example. 10</p><p>(i) CONCAT() (iv) MOD()</p><p>(ii) SUBSTR() (v) SIGN()</p><p>(iii) Instr() (vi) SQRT()</p><p> www.cbseguess.com Other Educational Portals www.icseguess.com | www.ignouguess.com|www.aipmtguess.com | www.aieeeguess.com | www.niosguess.com | www.iitguess.com http://www.cbseguess.com/</p><p>(vii) TRUNATE() (ix) DAYNAME()</p><p>(viii) DATE() (x) NOW()</p><p>Q6. Write the queries for the following: 10</p><p> a. Modify the last name of employee3, to punia</p><p> b. Remove the entire contents of the table</p><p> c. Change the data type of column pin code to varchar(10) in the table customer</p><p> d. Add a primary key constraint to the table employee2 using the empid column.</p><p> e. List all department numbers in table empl.</p><p> f. How many job types are offered to employees?</p><p> g. To display the name, job title and salary of employee who do not have manager.</p><p> h. To display name, age and marks (aggregate) of students whose age is greater than or equal to 16 from table student.</p><p> i. To list the employees’ details whose grade are other than G1.</p><p> j. To display the structure of table student.</p><p>Q7. a. Create a table employee as per following Table Instance Chart: 3</p><p>Column Empid empname Empaddress empphone empsal deptid Name Key Type Primary Nulls/Unique Not null DataType number varchar varchar Varchar number varchar Length 6 20 30 10 9,2 2</p><p> b. Write the disadvantages of using database system. 3</p><p> c. Define the following: 4</p><p>(i) Primary key (ii) Candidate key www.cbseguess.com Other Educational Portals www.icseguess.com | www.ignouguess.com|www.aipmtguess.com | www.aieeeguess.com | www.niosguess.com | www.iitguess.com http://www.cbseguess.com/</p><p>(iii) Cardinality (iv) Alternate key</p><p>.</p><p> www.cbseguess.com Other Educational Portals www.icseguess.com | www.ignouguess.com|www.aipmtguess.com | www.aieeeguess.com | www.niosguess.com | www.iitguess.com</p>