Download CBSE Important Questions for CBSE Class 12 Informatics Practices Networking and Open Standards (OLD) Networking and Open Standards Computer Networking: Networking: a brief overview, Communication Media: Wired Technologies – Co-Axial, Ethernet Cable, Optical Fiber; Wireless Technologies – Blue Tooth, Infrared, Microwave, Radio Link, Satellite Link; Network Devices: Modem, 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 Concepts: Cyber Law, Firewall, Cookies, Hackers and Crackers Network security threats: Denial of service, Intrusion problems, Snooping, Eavesdropping Internet Applications: SMS, Voice Mail, Electronic Mail, Chat, Video Conferencing Wireless/Mobile Communication: GSM, CDMA, WLL, 3G, 4G Open Source Concepts: Open Source Software (OSS), common FOSS/FLOSS examples (GNU/Linux, Firefox, OpenOffice, Java, Netbeans, MySQL). Common open standards (HTML, XML, ODF, TCP/IP, CSS) 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.
Download CBSE Important Questions for CBSE Class 12 Informatics Practices Programming (OLD) Programming Fundamentals Basic concept of Class, Object, Inheritance and Polymorphism Commonly used libraries:168 String class and methods: toString(), concat(), length(), toLowerCase(), toUpperCase(), trim(), subString() Math class methods: pow(), round() Accessing MySQL database using 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>, <B>,<I>,<U>, <CENTER>, <COMMENT>, <IMG>, ANCHOR <A>, Paragraph <P>, Line Break <BR>, Horizontal Rule <HR>, <FONT>, <TABLE>, <LIST> <UL>, <OL>, <FORM> Creating and accessing static pages using HTML and introduction to XML
Download CBSE Important Questions for CBSE Class 12 Informatics Practices Relational DBMS (OLD) Database Fundamentals Concept of Database transaction, Committing and revoking a transaction using COMMIT and ROLLBACK AND SAVEPOINT. Grouping Records: GROUP BY, Group functions - MAX(), MIN(), AVG(), SUM(), COUNT(); using COUNT(*), DISTINCT clause with COUNT; Group Functions in case of Null Values. Creating a Table with PRIMARY KEY, Foreign Key, Unique and NOT NULL constraints, Viewing Constraints, Using DESC command to view constraints. Displaying Data From Multiple Tables: Cartesian product, Union, Intersection and Equi-Join ALTER TABLE for Deleting column(s), modifying data type(s) of column(s), Adding a constraint, enabling constraint, dropping constraints. DROP Table for deleting a table or a database.
Download CBSE Important Questions for CBSE Class 12 Informatics Practices IT Applications (OLD) Front-end Interface: Introduction; content and features; identifying and using appropriate component (Text Field, Radio Button, CheckBox, List etc. as learnt in Unit 2 (Programming)) for data entry, validation and display. Back-end Database: Introduction and its purpose, exploring the requirement of databases, 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.
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