Chapter 4: Problem 23
Name a network that allow frames to be packed back-to-buck. Why is this feature worth having?
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Chapter 4: Problem 23
Name a network that allow frames to be packed back-to-buck. Why is this feature worth having?
These are the key concepts you need to understand to accurately answer the question.
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A 1-km-long, 10-Mbps CSMA.CD 1.AN (not \(802.3\) ) has a propagation speed of \(200 \mathrm{~m} / \mathrm{jecc}\). Repeaters are not allowed in this system. Data frames are 256 bits long. including 32 bits of header, checksum, and other overhead. The first bit stot after al saccessful transmission is reserved for the receiver to capture the channel in order lo send a 32-bit acknowledyement frame. What is the effective data rate, excluding overhead, assuming that there are no collisaons?
Sixteen stations, numbered I through 16, are contending for the use of a shared channel by using the adaptive tree-walk protocol. If all the stations whose addresses are prime numbers suddenly become ready at ance, bow many bit slots are needed to resolve the contention?
A disadvantage of Bluetooth's profiles is that they add significant complexity to the protocol. How can these profiles be an advantage from the perspective of the applicattions?
Consider five wireless stations, \(A, B, C, D\), and \(E\), Station \(A\) can communicate with all other stations. B can communicate with A, C and E. C can communicate with A.B and D. D can communicate with \(A, C\) and \(E\). E can communicate \(A\), D and B. (a) When \(A\) is sending to \(\mathrm{B}\), what other communications are possible? (b) When IB is sending to A what other communications are possible? (c) When \(\mathrm{B}\) is sendiag to \(\mathrm{C}\), what other coenmunications are possible?
Give two reasons why networks might use an crror-correcting code instcad of error detection and netransmission.
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