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repeat the previous exercise now with the assumption that ethernet is p-persistent with p 033 that is a waiting
ethernets use manchester encoding assuming that hosts sharing the ethernet are not perfectly synchronized why does this
suppose the ethernet transmission algorithm is modified as follows after each successful transmission attempt a host
let a and b be two stations attempting to transmit on an ethernet each has a steady queue of frames ready to send as
the 1982 ethernet specification allowed between any two stations up to 1500 m of coaxial cable 1000 m of other
what kinds of problems can arise when two hosts on the same ethernet share the same hardware address describe what
consider the sliding window algorithm with sws rws 3 with no out-oforder arrivals and with infinite-precision
suppose a is connected to b via an intermediate router r as in the previous problem the a-r link is instantaneous but
suppose that we run the sliding window algorithm with sws 5 and rws 3 and no out-of-order arrivalsa find the smallest
coaxial cable ethernet was limited to a maximum of 500 m between repeaters which regenerate the signal to 100 of its
suppose the round-trip propagation delay for ethernet is 464 mus this yields a minimum packet size of 512 bits 464 bits
suppose a b and c all make their first carrier sense as part of an attempt to transmit while a fourth station d is
a company is rewriting its payroll system to move it from an old batch-type mainframe to a distributed
draw a timeline diagram for the sliding window algorithm with sws rws 3 frames for the following two situations use a
describe a protocol combining the sliding window algorithm with selective acks your protocol should retransmit promptly
give some details of how you might augment the sliding window protocol with flow control by having acks carry
assignment sheet for proposing a solutionthis paper requires you to propose an actual working solution to your topic
for each of the following framing protocols give an example of a bytebit sequence that should never appear in a
cyber securityfor this assignment imagine that you are a cybersecurity consultant hired to identify the most
the crc algorithm as presented in this chapter requires lots of bit manipulations it is however possible to do
suppose you are designing a sliding window protocol for a 1-mbps point-to-point link to a stationary satellite
suppose you are designing a sliding window protocol for a 1-mbps point-to-point link to the moon which has a one-way
consider an arq algorithm running over a 20-km point-to-point fiber linka compute the propagation delay for this link
consider an arq protocol that uses only negative acknowledgments naks but no positive acknowledgments acks describe
with 1 parity bit we can detect all 1-bit errors show that at least one generalization fails as followsa show that if