1. Round-robin (RR) scheduling was referred as fair queuing (FQ) by John Nagle in 1985 when...
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1. Round-robin (RR) scheduling was referred as fair queuing (FQ) by John Nagle in 1985 when proposing RR in the gateway between a local area network and the internet to reduce network disruption from badly-behaving hosts. Whereas round- robin cycles over the queues and gives one service opportunity per cycle, weighted round robin (WRR), also referred to as WFQ, offers to each queue a fixed number of opportunities, in proportion to the weight of each connection. Figure 1 shows a link serving three incoming connections. a. Suppose connections A, B, and C have the same packet size, and weights 0.5, 0.75, and 1.0. How many packets from each connection should a WRR server serve in each round? [3 marks] b. Suppose connections A, B, and C have mean packet size of 50, 500, and 1500 bytes, and weights 0.5, 0.75, and 1.0. How many packets from each connection should a WRR server serve in each round? connection A connection B connection C III- Figure 1. server [7 marks] 1. Round-robin (RR) scheduling was referred as fair queuing (FQ) by John Nagle in 1985 when proposing RR in the gateway between a local area network and the internet to reduce network disruption from badly-behaving hosts. Whereas round- robin cycles over the queues and gives one service opportunity per cycle, weighted round robin (WRR), also referred to as WFQ, offers to each queue a fixed number of opportunities, in proportion to the weight of each connection. Figure 1 shows a link serving three incoming connections. a. Suppose connections A, B, and C have the same packet size, and weights 0.5, 0.75, and 1.0. How many packets from each connection should a WRR server serve in each round? [3 marks] b. Suppose connections A, B, and C have mean packet size of 50, 500, and 1500 bytes, and weights 0.5, 0.75, and 1.0. How many packets from each connection should a WRR server serve in each round? connection A connection B connection C III- Figure 1. server [7 marks]
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Auditing The Art and Science of Assurance Engagements
ISBN: 978-0133098235
12th Canadian edition
Authors: Alvin A. Arens, Randal J. Elder, Mark S. Beasley, Ingrid B. Splettstoesser
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