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The purpose of internetworking is universal service across heterogeneous networks. To give this service all computers, and routers have to agree to forward information from a source on one network to a specified receiver. The task is complicated as frame formats and addressing procedures may differ. The key of achieving universal service is universal protocol software (TCP/IP).
A virtual network is given in the figure that TCP/IP software gives to users and applications.
Selective Repeat (SR) Selective repeats is a connection oriented protocols in which transmitter and receiver have a window of sequence numbers. SR scheme avoids the unne
FAULT TREE ANALYSIS Reliability engineering, in a nutshell is concerned with failures. How failures occur, how often they occur, and how to minimize them are the basic proble
What are the value added services Many organisations are demanding higher services (also called value added services) such as faxing, minimal cost call routing, connectivity to
When the computers on the network basically listen and receive the signal, they are referred to as passive due to they don't amplify the signal in any way.
QUESTION (a) Briefly describe three security requirements of an agent (b) List four threats that may be caused by malicious hosts to mobile agents (c) Describe the forwar
State the methods to keep the attackers at bay Another best methods to keep the attackers at bay is known as network address translator or NAT. The philosophy behind the design
What are the Data link protocols? Data link protocols are sets of specifications used to implement the data link layer. The categories of Data Link protocols are 1. Asynchro
QUESTION Write a report to explain the concept of LAN and WAN including the various components of the telecommunication infrastructure required by UTM Ltd. You are required to
Define Co-axial cable. A solid central conductor surrounded by insulating material and then by a cylindrical shield woven from fine wires is called as co-axial cable. The shie
Layers, Massages, Segments, Datagram's and Frames Figure 2.15 show the physical path data takes down a sending end systems protocol stack up and down the protocol stac
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