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a) Assume that the time required to transmit one packet (i.e. the packet length divided by link data rate) is 10ms and the Round Trip Time (from Source to Destination and back) is 50ms. In the space below, draw a diagram illustrating the timing of Source and Destination exchanging packets and acknowledgments using a stop-and-wait protocol. Assume that packets are only sent from source to destination and that acknowledgments (of negligibly small size) are sent back immediately after the data frame is received.
b) Calculate link utilisation (proportion of time the channel is actually used for transmission) for the stop-and-wait case.
Coaxial Cable Coaxial cable carries signals of higher frequency ranges than those in twisted pair cable. In part because the two media are constructed quite differently.
Question : a) Describe the following core components of a cellular based network: i) Cell ii) MSC iii) HLR & VLR iv) PSTN b) Explain why frequency reuse is consi
The hotel has a class C public address space. The network number is 203.220.72.0/24. The hotel provides a number of eatery, office, accommodation and conference like services. This
What are some drawbacks of implementing a ring topology? In case one workstation on the network varies a malfunction, it can bring down the whole network. Another drawback is t
Token Passing - Token Ring (IEEE 802.5) Needs that station take turns sending data Token passing coordinates process Token is a especially formatted three-byte fr
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Describe in details about applications of Computer Networks ?
implementation of energy aided shortest path routing protocol???
Maintaining the sequence number The other advantage of GBN is that it maintain the next sequence number.
The application layer This layer enables users to access the network by providing a few services to the user some of the protocols and services available to the user ar
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