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802.11g OFDM
a) Uses OFDM with same 2.4 GHz band
b) Achieves a 54-Mbps data rate
c) Works with same 802.11b equipment
working of belmen ford algorithm
LRC - Performance Detects every burst errors up to length n (number of columns) If two bits in one data unit are damaged as well as two bits in exactly same positions
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QUESTION 1: (a) Define what you understand by the following terms in Network Flows: i) UnDirected Path ii) Directed Path iii) Directed Cycle. iv) Tree In each of the abov
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Q Illustrate Return to Zero encoding? - In NRZ-I long strings of 0s may still be a problem - May comprise synchronization as part of the signal for both 1s and 0s - How?
Point out the major advantages of Ring Topology. The benefits of ring topologies are: a. They are very simple to troubleshoot because every device incorporates a repeater.
Q. Describe about Data Communications? - Data - Information presented in whatsoever form is agreed upon by the parties creating and using the data - Data Communications - ex
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