Question
A system uses the Selective repeat ARQ and Go-back-N ARQ Protocols with a window of size 4 packets over a 1Mbps link. If each packet
A system uses the Selective repeat ARQ and Go-back-N ARQ Protocols with a window of size 4 packets over a 1Mbps link. If each packet carries 1000 bits of data. The distance between the sender and receiver is 5000 Km and the propagation speed is 2 x 108 m. Ignore acknowledgement transmission, waiting, and processing delays.
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(1 point) How many timers are needed to design the selective repeat ARQ protocol? How many timers are needed to design the Go-back-N ARQ protocol?
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(2 points) Assuming no data or control frame is lost or damaged, how long does it take to send 1 million bits of data using Go-back-N?
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3. (2 points) Using selective repeat and assuming 10% of the transmission windows have one lost or damaged frame, how long does it take to send 1 million bits of data?
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4. Repeat no 3 above using Go-back-N assuming timeout = 105ms.
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SQL Server 2019 Administrator S Guide A Definitive Guide For DBAs To Implement Monitor And Maintain Enterprise Database Solutions
Authors: Marek Chmel ,Vladimir Muzny
2nd Edition
1789954320, 978-1789954326
