Computer Science & Informatics Practices : XI , XII

SUMMER VACATION HOME WORK FOR XII- INFORMATICS PRACTICES 2014-15 (Note : Some questions get repeated. Attempt repeated questions only one time.) 1.A).   Mr. Ramesh is working in an Global Organisation. He wants to login in his office’s computer from his home.Suggest the protocol for the same. 1.B).    Which device is used for connecting multiple networks over different protocols?   1.C.)   Identify the following topologies.            (1) A signal/data packets transmit from one end to other end in linear way.             (2) Each node is connected to two and only two neighboring nodes in circular form. 1.d) Write any two scripts included in Indian Languages on Unicode.   1.e) What is the difference between free software and freeware ? 1.f) Arun is not clear about the wireless and wired media of communication kindly describe i...

COURSE DESIGN CLASS XII-IP- (2014-15) (THEORY) Unit Topic Period Total Periods Theory Practical 1. Networking and Open Standards 20 4 24 2. Programming 46 44 90 3. Relational Database Management System 50 40 90 4. IT Applications 10 26 36 Unit 1: Networking and Open Standards 10 Marks (20 Theory+4 Practical) Periods 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: 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;  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 proble...