1. Name:-Surve A.P. Class :-MCA II Broad Band Networking

2.  As Name Suggest it allows digital communicaion.This favourable as digital technology is a lot faster,and more accurate than the old anolog lines.  ISDn relies on already exiting copper cable system. ISDN stands for Integrated Service Digital Network

3.  A service requiring transmission channels capable of supporting rates grater than the primary rate.  Any service inquiry with a speed grater than 1.544 Mbps is defined as broadband,and any communication based on this speed are called broadband communication.

4.  IDNS is Telephone Network  IDNS is Integrated Services  IDNS is Digital

5.  User Plane  Copntrol Plane  Management Plane

6. Physical Layer ATM Layer ATM adaptation Layer(AAl) Higher Layer Control PlaneUser Plane Layer Management Plane Management Management Plane

7.  Physical Layer  ATM Layer  ATM Adaptation Layer(AAL)  Higher Layer

8.  Divided into two sub Layers Physical Meduim: It is the lowest layer of than N-ISDN Protocol,and it includes the functions that are only physical-medium dependent.It self provides line coding Transmission Convergence:  The main function of this sub layer are call rate decoupling,HEC(Header Error Control) header sequence generation,cell delination,transmission frame adaption,transmission frame generation.

9.  Generic Flow Control  Cell Header Generation  Virual Channel Identifier  Cell multeplexing and demulteplexing

10.  The basic function of AAL is the enhanced adaptation of the services provided by the ATM layer until the requirment if the higher layer’s services are met.  In this layer,the higher layer protocol data units are mapped on to the information field of the ATM cell,which is 48 bytes long.

11.  Refers to small-sized earth station that receives and transmits one/two way wireless communication by connection disapersed remote sites to a central hub or earth station via satellite using small antena dishes whose diameter are between 0.6 to 3.8.eters,which gives it the name “Very Small”.  Two-Modules:-OutDoor Unit and InDoor Unit

12. Industry Banking Retail Transportation Financial Energy Services -Automatic Teller Machine -Transcation System,database -Credit authorization -Pricing Updates -File/Software Upadte -Branch Bank automation -Inventory Control -Video Promotion -Order entry - Credit authorization -Online Trading - File/Software Update -Communication to drilling sites -Inventory Control -Feel Management -Brokerage Services -Electronic Payment -Pipeline Monitoring -Power Line Monitoring