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## The University of Tennessee Martin ALOHA and CSMA CD Network Questions i need help in 4 question of network as fast as possible the question is on the atta

The University of Tennessee Martin ALOHA and CSMA CD Network Questions i need help in 4 question of network as fast as possible the question is on the attachment about ALOHA and CSMA/CD, please see the attachment Q10) An ALOHA channel with speed 64Kbps is used to send frames of 2000 bits. What is the maximum
number of frames that can be sent per second.
Q12) For a slotted ALOHA channel with mean of G total attempts per frame time. What is the
percentage of empty slots ? What is he percentage of empty slots when the channel operates with its
maximum throughput ?
Q13) What is the maximum cable length for a CSMA/CD network running at 1 Gbps? Assume that the
minimum frame length is 1250 bytes. Signal speed is 200,000 km/sec.
Q14) A datagram subnet allows routers to drop packets whenever they need to. The probability of a
router discarding a packet is p. Consider the case of a source host connected to the source router, which
is connected to the destination router, and then to the destination host. If either of the routers discards
a packet, the source host eventually times out and tries again. If both host-router and router-router
lines are counted as hops, compute the following: (a) Mean hops a packet makes per transmission?
(Hint: per one transmission, a packet may take 1,2 or 3 hopes). (b) Mean transmissions a packet makes?
(Hint: first compute the probability of a successful transmission). (c) Mean hops required per received
packet?