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Q. Why we use numbering frames?
Why numbering frames?
Stop--and-wait ARQ,
1. Numbering Frames prevents the retaining of duplicate frames..
2. Numbered acknowledgement is needed in case off delayed ACK and next frame lost.
Fragmentation - Wireless environment is very noisy - Corrupt frames must be retransmitted - Large frames must be divided into smaller ones to increase efficiency
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show ipx servers is the command that shows the SAP table
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Q. Example of go back - N protocol? The window size is 4. A sender has sent frame 6 as well as the timer expires for frame 3 (frame 3 not ACKn'd). The sender goes back as we
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