Question: Note : communication network Answer each of the following 1. State two key differences between analog and digital signals a. Answer: 2.Explain the term bandwidth
Note : communication network
Answer each of the following 1. State two key differences between analog and digital signals a. Answer:
2.Explain the term bandwidth in the two contexts providing units for each a. Answer:
3. The Nyquist formula informs us about the capacity in a noiseless channel and the Shannon's formula informs us of the capacity of a noisy channel. In practice, we mostly encounter noisy channels so why do we still need the Nyquist formula? Nyquist formula: Bit rate 2 x bandwidth x log2 L Shannon formula: C-Bx log: (1+ SNR) a. Answer:
4.Calculate the throughput of a 1Gbps link that can pass only 60000 frames each of length 1000 bits a. Answer:
5. Assuming the processing and queuing delay are 0, calculate the communication latency for a link given the following information - message size 1MB, bandwidth of the link 1Gbps, length of the link 12000km and speed of light 2.4x10 a. Answer:
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