Networking - Wide Area Networks - Discussion

Discussion :: Wide Area Networks - Wide Area Networks (Q.No.13)


Which of the following uses ATM as the Data Link layer protocol that's terminated at what's known as the DSLAM?

[A]. DSL
[B]. PPPoE
[C]. Frame Relay
[D]. Dedicated T1
[E]. Wireless

Answer: Option A


ATM is the Data-Link layer protocol that's typically used over the DSL layer 1 connection from the CPE and terminated at what's known as the DSLAM-an ATM switch that contains DSL interface cards, or ATU-Cs.

Yogesh Singh said: (Oct 5, 2017)  
Terms Used in question.

A DSLAM (Digital Subscriber Line Access Multiplexer) is a network device, usually at a telephone company central office, that receives signals from multiple customer Digital Subscriber Line (DSL) connections and puts the signals on a high-speed backbone line using multiplexing techniques.

A digital subscriber line (DSL) modem is a device used to connect a computer or router to a telephone line which provides the digital subscriber line service for connectivity to the Internet, which is often called DSL broadband.

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