Question: 7. (4 pointa) Cossider two nodes A and B consected vis an Etheret bo of 48Mbps Suppone that the two nodes are the oaly sodes,

7. (4 pointa) Cossider two nodes A and B consected vis an Etheret bo of 48Mbps Suppone that the two nodes are the oaly sodes, and that the propsantion delay betwern temi 240 Suppose that both nodes each bas a frame to send, and st tve t After coll ision, node A chooses KA 0 and node B chocees Kp 1. Rl th, i the CSMA/CD 0 they bot algorithm, right after detecting a collislon, a node mrst seud a js signal of 4s bit me The CSMA/CD algorithm also requires tht a node, having Eranse to setd, sesee the bus ie or 96 bit times before it can transmit. The tame length ? 1200 bit. All answers mont be In microseconds. (a) (1 point) At what time does A detect the collision (in micreoda) time microseconds (b) (I point) At what time does the bus become idle (in microsecoode) time (c) (1 point) At what time does A begin retranmiscion (in microsecoods)? microseconds time (d) (1 point) At what time does A's frame get suocessfully delivered to B (in microseconds)? time

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