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A communications channel is pathways over which information can be communicate. It may be described by a physical wire that connects communicating devices, or by a radio, laser, or other radiated energy source that has no clear physical presence. Information sent by a communications channel has a source from which the information originates, and a destination to which the information is delivered. Although information originates from a one source, there may be more than single destination, depending upon how many receive stations are related to the channel and how much energy the transmitted signal possesses.
What are the features of star and ring topology The three networks have following features: star: best case is = 2, average case is = 2, worst case is = 2 ring: best case
Ethernet Addressing Every station on the network must have a unique physical address Offered by a six-byte physical address encoded on the network interface card (NIC)
Use Packet Tracer software to model the network that you have designed, and configure the network to make sure it is running properly. The following requirements should be met:
Q. What are the trends in Network Security ? Trends in Network Security Improved vigilance for virus infections Continual maturation of firewall technologies
Q. Quality of Service - multiplicative decrease? Quality of Service The collective consequence of service performance which determines the degree of satisfaction of a
What is autonomous system? It is a collection of routers under the control of a one administrative authority and that uses a common Interior Gateway Protocol.
1) The school has implemented a pilot MPLS VPN which is being evaluated to replace the Bell South Frame Relay solution that provides connectivity to the Bascom Palmer Eye-Institute
What is Beaconing? The process that permits a network to self-repair networks problems. The stations on the network notify the other stations on the ring when they are not rece
Transmission Control Protocol (TCP) TCP makes the Internet reliable. TCP solves several problems which can occur in a packet switching system. TCP provide the given facilities:
Why does collision happen in HUBS and repeaters?
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