What is the function of a crf or head end on a broadband lan

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What is the function of a CRF or head end on a broadband LAN? There are two methods of connecting user facilities to optical fiber LANs. What are they? Discuss the pros and cons of each ? What is a LAN access protocol? ? Compare contention and polling. Describe how each leads to a particular LAN access protocol, such as token passing and CSMA/CD.

Reference no: EM131301704

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