Multiple choice

Which of the following statements is true about data connectivity between a customer and a service provider?

  1. Normally the CSU/DSU is the designated demarcation point for the service provider but not the customer.

  2. The segment between the demarcation point and the central office is known as the last mile.

  3. The local loop is the segment between the CSU/DSU and the serial port.

  4. Putting data on the local loop is the responsibility of the DTE.
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B Correct answer
Explanation

The 'last mile' refers to the final leg of the telecommunications network from the provider's central office to the customer premises. This includes the local loop (the physical copper/fiber lines). The demarcation point is where provider responsibility ends, typically at the customer's building entrance.

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