What do you mean by the term WDM
What do you mean by the term WDM? Describe in brief.
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WDM is conceptually similar as FDM; apart from that the multiplexing and demultiplexing entail light signals transmitted via fiber optics channel.
Explain different types of multiplexing?
What do you mean by the term Layer 3 or Network Layer? Describe in brief.
Explain what are header and trailers and how they can be added and removed?
Explain the term level gateway?
How is ISP organized and Accessed. Explain its complete history?
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Briefly list out all the equipment which is required for the VoIP?
Mobile telephone networks started with analog technology. Analog cellular networks were known as first generation (1G) networks. Such networks had limited capacity, and were subject to fraud and eavesdropping. Digital cellular telephone networks are known as second generation or 2G networks. Digi
Illustrate what do you mean by the term Link?
Explain the phenomenon of the selective reject ARQ?
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