OSWAAL CBSE SAMPLE QUESTION PAPERS INFORMATICS PRACTICES. Published by :

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2 OSWAAL CBSE Strictly Based on Latest Syllabus Issued by CBSE for 016 Examination SAMPLE QUESTION PAPERS INFMATICS PRACTICES CLASS 1 Published by : OSWAAL BOOKS Oswaal House 1/11, Sahitya Kunj, M.G. Road, AGRA-800 Ph.: , 57781, Fax : , contact@oswaalbooks.com, website :

3 ANDAMAN & NICOBAR PT BLAIR Mitali Enterprises, P. (0319) Kumar General Store, P ANDHRA PRADESH GUNTO Y. Renuka Devi, P. (0863) 5308 HYDERABAD Himalaya Book World, P. (040) , Unique Book World, P. (040) Shri Balaji Book Depot, P. (040) UBS Publisher & Dist., P VIJAYWADA Sri Kanka Durga Book Stall, P VISHAKHAPATNAM JBD Educational, P. (0891) , Sri Rajeshwari Book Link, P. (891) ASSAM GUWAHATI Book Emporium, P UBS Publisher, P UBS Publisher & Dist., P BIHAR BHAGALPUR Sanjay Book Store, P. (0641) 30714, PATNA Gyan Ganga, P. (061) 68394, Nova Publisher & Distributors, P. (061) UBS Publisher, P Shri Durga Pustak Mandir, P. (061) Vikas Book Depot, P. (061) Sharda Pustak Bhandar, P. (061) Bokaro Student Friends, P MUNGER New Aman Book & Stationers, P. (06344) 0757 MUZAFFARPUR Pustak Bhandar, P CHATTISGARH DURG Bhagwati Bhawani Book Depot, P. (0788) 3760 RAIPUR Shri Ramdev Traders, P. (0771) DELHI DELHI Mittal Books, P. (011) UBS Publisher, P. (011) R.D.Chawla & Sons, P. 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(0761) KATNI Agrasen Stationers, P. (076) REWA Siddharth Enterprises, P. (0766) UJJAIN Sri Nath Book Depot, P. (0734) , MAHARASHTRA AHMEDNAGAR Heera Stationers, P. (041) AKOLA Book Emporium, P. (0) Rathi Paper Traders, P. (074) 45679, AURANGABAD Maya Book Centre, P. (040) BHUSAWAL Anil Book Depot, P. (058) 541 CHANDRAPUR Novelty Book Depot, P. (0717) JALGAON Sharma Book Depot, P. (057) Vidyadhan Book House, P. (057) 5548 KOLHAPUR Jai Book Co., P. (031) MUMBAI Shivam Book & Stationer, P. (0) , Reshma Agency, P. (0) NAVI MUMBAI Krishna Book Store, P. (0) , NAGPUR Novelty Book Depot, P. (071) Vijay Book Depot, P. (071) 53417, Shree Balaji Agency, P. (071) UBS Publisher & Dist., P. (071) , NANDED India Book Agencies, P Vijay Book Centre, P PUNE Sai Shubham, P. (00) , UBS Publisher & Dist., P SOLAPUR Mahavir General Store, P. (017) WARDHA Unique Traders, P. (0715) 43617, YAVATMAL Dilip Book Agencies, P. (073) ODISHA BHUBANESWAR Sagar Book Store, P. (0674) , Pragnya Book Store, P. 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4 CONTENTS Syllabus 5-8 Solved Paper with CBSE Marking Scheme 9-3 (Outside Delhi Set) Sample Question Papers (Solved) Sample Question Paper Sample Question Paper Sample Question Paper Sample Question Paper Sample Question Paper Sample Question Papers (Self Assessment) Sample Question Paper Sample Question Paper Sample Question Paper Sample Question Paper Sample Question Paper Solutions Sample Question Paper Sample Question Paper Sample Question Paper Sample Question Paper Sample Question Paper * SOLUTIONS for Sample Question Paper 6 to 10 can be downloaded from ( iii )

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6 SYLLABUS COURSE DESIGN INFMATICS PRACTICES (Code No. 065) CLASS XII Unit Topic Theory Period Practical Total Periods 1 Networking and Open Standards Programming Relational Database Management System Its Aplications Computer Networking : Networking : a brief overview, Total UNIT 1 : Networking and Open Standards Communication Media : Wired Technologies Co-Axial, Ethernet Cable, Optical Fiber; Wireless Technologies Blue Tooth, Infrared, Microwave, Radio Link, Satellite Link; Network Devices : Hub, Switch, Repeater, Gateway and their functions Types of network : LAN, MAN, WAN, PAN; Network Topologies : Star, Bus, Tree Network Protocols : HTTP, TCP/IP, PPP, Remote access software such as Team Viewer; Identifying computers and users over a network : Basic concept of domain name, MAC (Media Access Control), and IP Address, domain name resolution Network security : denial of service, intrusion problems, snooping Internet Applications : SMS, Voice Mail, Electronic Mail, Chat, Video Conferencing Wireless/Mobile Communication : GSM, CDMA, WLL, 3G, 4G Network Security Concepts : Cyber Law, Firewall, Cookies, Hackers and Crackers Open Source Concepts : Open Source Software (OSS), common FOSS/FLOSS examples (GNU/Linux, Firefox, OpenOffice, Java, Netbeans, MySQL), common open standards (WWW, HTML, XML, ODF, TCP, IP) Indian Language Computing : character encoding, UNICODE, different types of fonts (open type vs true type, static vs dynamic), entering Indian Language Text phonetic and key map based, Inscript.

7 6 OSWAAL CBSE Sample Question Paper Informatics Practices, Class 1 UNIT : Programming Review of Class XI; Programming Fundamentals (Refer to Appendix A for Swing Control Methods & Properties, and Appendix B for sample guidelines of GUI Programming) Basic concept of Access specifier for class members (data members and methods) Basic concept of Inheritance Commonly used libraries : String class and methods: tostring(), concat(), length(), tolowercase(), touppercase(), trim(), substring() Math class methods: pow(), round() Accessing MySQL database using ODBC/JDBC to connect with database. Web application development: URL, Web server, Communicating with the web server, concept of Client and Server Side HTML based web pages covering basic tags HTML, TITLE, BODY, H1..H6, Paragraph (P), Line Break (BR), Section Separator (HR), FONT, TABLE, LIST (UL, OL), FM Creating and accessing static pages using HTML and introduction to XML UNIT 3 : Relational Database Management System Review of RDBMS from Class XI Database Fundamentals Concept of Database transaction, Committing and revoking a transaction using COMMIT and ROLLBACK. Grouping Records : GROUP BY, Group functions - MAX(), MIN(), AVG(), SUM(), COUNT(); using COUNT(*), DISTINCT clause with COUNT; Group Functions and Null Values. Displaying Data From Multiple Tables : Cartesian product, Union, Intersection concept of Foreign Key, Equi-Join Creating a Table with PRIMARY KEY and NOT NULL constraints,viewing Constraints, Viewing the Columns Associated with Constraints using DESC command. ALTER TABLE for deleting column(s), modifying data type(s) of column(s), adding a constraint, enabling constraints, dropping constraints. DROP Table for deleting a table UNIT 4 : IT Applications Front-end Interface: Introduction; content and features; identifying and using appropriate component (Text Box, Radio Button, CheckBox, List etc. as learnt in Unit (Programming)) for data entry, validation and display. Back-end Database: Introduction and its purpose, exploring the requirement of tables and its essential attributes. Front-End and Database Connectivity: Introduction, requirement and benefits Demonstration and development of appropriate Front-end interface and Back-end Database for e-governance, e-business and e-learning applications Impact of ICT on society: Social, environmental and Economic benefits. In each of the above domains, identify at least two real-life problems, list the expected outputs and the input(s) required for the output, and describe the problem solving approach and develop relevant front-end interface and back-end database.

8 COURSE DESIGN CLASS XII (PRACTICAL) (015-16) Syllabus 7 S. No. Description Marks 1 Problem solving using Java 10 SQL Queries 4 3 Practical Record : Identify Network configuration and OSS used in school Simple problems using IDE Java SQL Queries IT Applications 4 Project Work 5 5 Viva Voce 5 Evaluation of Practical Examination 1. Problem solving using Java Total 30 Student is required to solve programming problems based on all concepts covered in theory throughout the year and maintain a record of these in the practical file. Student will be given a problem to be solved using Java during final practical examination to be conducted at the end of the academic session.. SQL Queries Students will be practicing SQL queries in MySQL throughout the year alongwith course coverage in theory. Student will be asked to write four queries based on one or two tables during final practical examination to be conducted at the end of the academic session 3. Practical Record File A practical record file is required to be created during the entire academic session. It should be duly signed by the concerned teacher on regular basis and is to be produced at the time of Final Practical Examination for evaluation. It should include the following : At least 1 solutions of simple problems using IDE based Java (refer to Appendices A & B ) Network Configuration and open source software used in your school. Solution of at least simple problems incorporating Java Application & Database connectivity At least 4 SQL queries based on one and/or two tables At least two web pages using HTML 4. Project File Students in group of -3 are required to work collaboratively to develop a project using Programming and Database skills learnt during the course. The project should be an application in any one of the domains e-governance, e-business and e-learning - with GUI front-end and corresponding database at the back-end. 5. Viva Voce Students will be asked oral questions during practical examination to be conducted at the end of the course. The questions will be from the entire course covered in the academic session

9 8 OSWAAL CBSE Sample Question Paper Informatics Practices, Class 1 Question Paper Design Class - XII (015-16) S. No. Typology of Questions Very Short Answer (VSA) (1 mark) Short Answer-I (SA-I) ( marks) Short Answer-II (SA-II) (4 marks) Long Answer (L.A) (6 marks) Total Marks % Weightage 1 Knowledge Based Conceptual Understanding 3 Reasoning Based Skill based Total Marks (30) No chapter wise weightage. Care to be taken to cover all the chapters.. The above template is only a sample. Suitable internal variations may be made for generating similar templates keeping the overall weightage to different form of questions and topology of questions same. 3. Questions may be case based requiring problem solving skills. 4. LA Questions may be case-based requiring problem finding and problem solving skills. qqq

10 SOLVED PAPER With Marking Scheme C.B.S.E. 015 Class XII Outside Delhi Informatics Practices Time allowed : 3 Hours Max. Marks : 70 General Instructions : Marking scheme is the final document for all references with regard to evaluation and cannot be altered under any circumstances. The answers given in the marking scheme are SUGGESTIVE, Examiners are requested to award marks for all alternative correct Solutions/Answers conveying the similar meaning. All programming questions have to be answered with respect to Java Language only. In Java, ignore case sensitivity for identifiers (Variables/Functions/Structures/Class Names). In SQL related questions : a. Both ways of text/character entries should be acceptable. For example: AMAR and amar both are acceptable. b. All date entries should be acceptable for example: YYYY-MM-DD, YY-MM-DD DD-Mon-YY DD/MM/YY DD/MM/YY MM/DD/YY MM/DD/YY and {MM/DD/YY} are correct. c. Semicolon should be ignored for terminating the SQL statements. d. Ignore case sensitivity for commands. e. Ignore headers in output questions. Outside Delhi Set Code : 90 Q. 1 (a) A school with 0 stand-alone computers is considering networking them together and adding a server. State two advantages of doing this. Resource sharing for hardware and software both. Cost saving and cutting down the maintenance expanses. Collaborative use and interaction of software Increased storage (½ mark each for any two correct advantages) (b) Distinguish between LAN and WAN. 1 LAN WAN Stands for Local Area Network Wide Area Network Covers Limited geographical areas within an organisation or campus only Very large geographic areas like states Example Network in an office building Internet, world wide web Ownership Single person or organization Collective or distributed ownership ( 1 mark for any one correct difference ) 1

11 10 OSWAAL CBSE Sample Question Paper, Informatics Practices, Class 1 (c) What is the purpose of modem in network? 1 It modulates/converts a digital signal into analog signal and vice versa. (1 mark for correct answer ) (d) Write one example of IP address (1 mark for any correct example of IP address) Note : Range of IP address to (e) Define Domain Name Resolution. (f) Domain Name Resolution is the process of getting corresponding IP address from a domain name. ( marks for correct answer) DNS translates the physical address into high level or english like address e.g into ( marks for any valid example illustrating the same ) Name two threats to security in a network. What is the role of Firewall in Network security? Threats to security in a network are following : (g) Virus/Malicious software infection Denial of Service (DoS) attack or Hacking of server Snooping or Breaking the security measures Eavesdropping or stolen of information Note : Intrusion problems mentioned in place of Snooping / Eavesdropping to be accepted. Role of firewall in Network security : A firewall permits only virus free or junk free data to enter or leave a computer/ Network for which permissions have been granted by the computer/network administrator. It works like a safety wall to the computer network. (½ mark each for any two correct threats) (1 mark tor correct role of firewall) Write one advantage and one disadvantage of Open Source software over Proprietary software. Advantages of Open Source software over Proprietary software : Free to use, distribute and modify Nodependence on the developer for updates, support and fixes. Uses open standards Disadvantages of Open Source software over Proprietary software : Lack of software support Generally low security (1 mark for advantage) (1 mark for disadvantage)

12 Solved Paper Q. (a) Write the value of variable c after execution of the following code : 1 int d; int c; d=7; c = (5*++d)%3; (1 mark for correct answer) (½ mark to be awarded if is given as answer on account of student s knowledge about *and % operators) (b) What is the difference between jtextfield and jpasswordfield components? 1 jtextfield displays input/output characters same to same as they are entered. jpasswordfield does masking of keyboard input from user, using an echo character * by default. (1 mark for correct difference) (c) In a SWITCH statement, what is the purpose of default section? 1 (d) default section is used to execute the statement(s), when none of the specified cases mentioned are matched. (1 mark for correct answer) After typing the HTML code using a text editor, how do you see how it would look as a web page? Open the HTML file using any web browser/then browse and run the file. It is called offline execution of the html program. Note : Any valid example of Web browser/web Design Tool should also be accepted. (1 mark for correct answer) (e) Write Java code to assign the value 500 to variable x. Increase the value of x by 50 and store it in variable y. X = 500; X += 50; y = x; X = 500; X= X+ 50; y = x; (½ mark for assigning 500 to x) (1 mark for increasing value of x by 50) (½ mark for assigning increased value to y) 1 1

13 1 OSWAAL CBSE Sample Question Paper, Informatics Practices, Class 1 (f) Write the output that will be generated by the code given below : int i; i = 7; int r; r=8; while (i<=l0) { System.out.println(r*i); i = i+; } 56 (g) 7 (1 mark for each correct line of output) (Full marks to be given if both output 56 and 7 mentioned in the same line) (Full marks to be awarded if any part of Question is attempted correctly) With XML there are no predefined tags - Explain in brief with the help of an example. XML tags are created by the user as there are no standard tags. For example : To store name, the tag <name> may be used as : <name> Sumedha </name> and <name> Suman </name> So, <name> Computer </name> Show that computer is some name. ( marks for explanation with the help of example) (Full marks should be awarded if only explanation is given) Q. 3 (a) What is MySQL? 1 MySQL is an open source Relational Database Management System (RDBMS) that uses Structured Query Language (SQL) for adding, accessing and managing content in a database. It is an open source RDBMS software. It is available free of cost. (1 mark for any correct answer) (b) Is NULL value the same as 0 (zero)? Write the reason for your answer. 1 No. Reason : NULL is used to mean that the field has no value or unknown value. 0 is a numeric value. (½ mark for stating NO) (½ mark for any correct reason)

14 Solved Paper (c) Write the UPDATE command to increase the commission (Column name : COMM) by 500 of all the Salesmen who have achieved Sales (Column name : SALES) more than The table s name is COMPANY. UPDATE COMPANY SET COMM = COMM (d) WHERE SALES > 00000; UPDATE COMPANY SET COMM = COMM WHERE SALES > AND JOB= Salesmen ; (½ mark for correct use of UPDATE SET) (½ mark for correct use of WHERE) While using SQL pattern matching, what is the difference between '_' (underscore) and % wildcard symbols? _ is used to represent a single character whereas % is used to represent any sequence of zero or more characters. (1 mark for stating any correct difference ) (1 mark for stating the difference with the help of example) (½ mark for any one correct example of either wildcards without explanation) (e) How is primary key constraint different from unique key constraint? (f) In a table, there is only one primary key constraint whereas, it may have more than one unique key constraint. Primary key constraint used to identify a tuple uniquely, can not be null. Unique key constraint makes sure that duplicate values in the specified column are not accepted, however it may be null. ( marks for stating any correct difference) ( marks for only defining Primary Key constraint) Write one similarity and one difference between CHAR and VARCHAR data types. Similarity : Both are used for storing non-numeric data. Both can store 1 to 55 characters. Values must be enclosed in single quotes or double quotes. Difference : 1 1 CHAR Used for fixed-length string Padded to the specified length when stored VARCHAR Used for variable-length string No padding takes place (1 mark for stating any one correct similarity.) (1 mark for stating any one correct difference.) Note : Full marks to be awarded if similarity/difference explained with the help of example.

15 14 OSWAAL CBSE Sample Question Paper, Informatics Practices, Class 1 (g) What is a transaction? Which command is used to make changes done by a transaction permanent on a database? A transaction is a unit of database operation that must be done in logical order and successfully as a group or not done at all. COMMIT command is used to make changes done by a transaction permanent on a database. (1 mark for defining Transaction) (1 mark for stating COMMIT) Q. 4 (a) The following code has some error(s). Rewrite the correct code underlining all the corrections made. int marks, temperature; marks= jtextfieldl.gettext()); temperature = Integer.parseInt(jTextField.getText()); if (marks < 80) and (temperature >= 40) { System.out.println( Not Good ); } else; { System.out.println( OK ); } int marks, temperature ; marks = Integer.parseInt(jTextFieldl.getText()); temperature = Integer.parseInt(jTextField.getText()); if ((marks <80) && (temperature >= 40)) { System.out.println( Not Good ); } else { System.out.println( OK ); } (½ mark each for correcting any four errors) (1 mark for only identifying any four errors - without making any corrections) NOTE : System.out.println may also be accepted as an error.

16 Solved Paper (b) How many times will the following WHILE loop execute? (c) int y = 7, sum= 0; while (y<=15) { sum= sum+ y; y = y+; } 5 times ( Marks for correct no. of times) Rewrite the following program code using IF ELSE IF instead of SWITCH statement : String tour; int cl = Integer.parseint{jTextFieldl.getText()); switch (cl) { case 8: tour= \n You are going to Camp Ramgarh ; break; case 9: tour= \n You are going to Manali, Rohtang Pass ; break; case lo:tour= \n You are going to Chail ; break; default:tour= No School tour for you this time ; } String tour ; int cl=integer.parseint(jtextfieldl.gettext()); if (c1==8) tour= \n You are going to Camp Ramgarh ; else if (cl == 9) tour= \n You are going to Manali, Rohtang Pass ; else if (cl==lo) tour= \n You are going to Chail ; else tour= No school tour for you this time ; (½ mark for correct use of if -else statement) (½ mark for each correct condition )

17 16 OSWAAL CBSE Sample Question Paper, Informatics Practices, Class 1 (d) Write the values of sum and x after execution of the following code: int sum,x; sum= 7; X = 5; sum = sum + (x++) ; sum = 1 X = 6 (1 mark for correct value of sum) (1 mark for correct value of x) (e) What will be the contents of jtextfield1 and jtextfield after executing the following code: Strings= Best ; jtextfieldl.settext(s.length()+ ); 4 jtextfield.settext(s.touppercase()); Best (f) (1 mark for each correct output) The students of Shiksha Vidyalaya work for different extra curricular activities like Community Outreach Programme, Swachh Bharat Abhiyan and Traffic Safety Club. The programmer at the school has developed a GUI application as shown below : A student can participate in more than one activities. Each student gets 10 points for each activity namely Community Outreach Programme, Swachh Bharat Abhiyan and Traffic Safety Club. (i) Help the programmer to write code for the following : 3 When Calculate Total Score button is clicked, the points for each activity (that is selected) should be displayed in the text field in front of that activity s checkbox and the Total Score should be displayed in the appropriate Text field.

18 Solved Paper int Total=0; if(jcheckboxl.isselected()) { jtextfield3.settext( +l0); Total=Total+l0; } if(jcheckbox.isselected()) { jtextfield4.settext( +10); Total=Total+l0; } if(jcheckbox3.isselected()) { jtextfield5.settext( +l0); Total=Total+l0; } jtextfield6.settext( +Total); (1 mark for correct use of if statement) (½ mark for correct use of settext() for displaying 10, 10, 10) (1 mark for calculation of Total) (½ mark {or displaying Total) (ii) When Clear button is clicked, all the Textfields and Checkboxes should be cleared. 1 jtextfieldl.settext( ); jtextfield.settext( ); jtextfield3.settext( ); jtextfield4.settext( ); jtextfield5.settext( ); jcheckboxl.settext(false); jcheckbox.settext(false); jcheckbox3.settext(false); jtextfield6.settext( ); Note: NULL in place of should also be accepted. (½ mark for clearing any text field) (½ mark for clearing any check box) (iii) When Stop button is clicked, the application should close. 1 System.exit(0); (1 mark for correct answer) Q. 5 (a) Distinguish between single row and aggregate functions of MySQL. Write one example of each.

19 18 OSWAAL CBSE Sample Question Paper, Informatics Practices, Class 1 Single row function Works on a single value / row Returns one value for each row Accepts one or more argument Aggregate function Works on multiple values in a single column Returns one value after operating on single/ multiple rows Accepts only one argument (b) Example of Single row function ROUND (X), CONCAT (strl, str,.. ) or any other suitable example of Numeric, String or Date and Time functions. Example of Aggregate function MAX (), MIN (), AVG (), SUM(), COUNT () (1 mark for any one correct difference) (½ mark each for any one example of Single row function and Aggregate function) ( marks for any one correct difference explained with the help of example) Consider the following table named SOFTDRINK. Write command of SQL for (i) to (iv) and output for (v) to (vii). Table : SOFTDRINK DRINKCODE DNAME PRICE CALIES 101 Lime and Lemon Apple Drink Nature Nectar Green Mango Aam Panna Mango Juice Bahaar (i) To display names and drink codes of those drinks that have more than 10 calories. 1 (ii) SELECT DNAME, DRINKCODE FROM SOFTDRINK WHERE CALIES > 10; (½ mark for SELECT) (½ mark for WHERE) To display drink codes, names and calories of all drinks, in descending order of calories. SELECT DRINKCODE, DNAME, CALIES FROM SOFTDRINK DER BY CALIES DESC; (½ mark for SELECT) (½ mark for DER BY) (iii) To display names and price of drinks that have price in the range 1 to 18 (both 1 and 18 included). 1 1

20 Solved Paper SELECT DNAME, PRICE FROM SOFTDRINK WHERE PRICE BETWEEN 1 AND 18; SELECT DNAME, PRICE FROM SOFTDRINK WHERE PRICE>= 1 AND PRICE<= 18; SELECT DNAME, PRICE FROM SOFTDRINK WHERE PRICE>= 1 && PRICE<= 18; (½ mark for SELECT) (½ mark for correct use of BETWEEN >= and <=) (iv) Increase the price of all drinks in the given table by 10% 1 UPDATE SOFTDRINK SET PRICE = 1.10 * PRICE; UPDATE SOFTDRINK SET PRICE = PRICE +.10 * PRICE; UPDATE SOFTDRINK SET PRICE = PRICE + 10/100 * PRICE; (½ mark for UPDATE) (½ mark for SET) (v) SELECT COUNT(DISTINCT(PRICE))FROM SOFTDRINK; 1 COUNT(DlSTINCT PRICE 4 (1 mark for correct output) (vi) SELECT MAX(CALIES) FROM SOFTDRINK; 1 MAX (CALIES) 150 (1 mark for correct output) (vii) SELECT DNAME FROM SOFTDRINK 1 WHERE DNAME LIKE %Manqo% ; DNAME Green Mango Mango Juice Bahaar (1 mark for correct output) (c) What is the degree and cardinality of SOFTDRINK TABLE? 1 Degree= 4, Cardinality = 6 (½ mark each for correct Degree and Cardinality)

21 Oswaal CBSE Sample Question Papers For Class 1 Informatics Practices ( March 016 Examination ) 51% OFF Publisher : Oswaal Books ISBN : Author : Panel Of Experts Type the URL : Get this ebook