Which three statements correctly describe DSL-based Internet services for residential users? (Choose three.)

Which three statements correctly describe DSL-based Internet services for residential users? (Choose three.)
A . Most residential deployments use PPPoE encapsulation where the end user PC or the DSL CPE will require a PPP username and password configuration.
B . Most residential deployments use PPPoA encapsulation where the DSL CPE device needs to provide Layer 3 routing functions.
C . The most commonly installed DSL variant for residential deployments is ADS
E . The most commonly installed DSL variant for residential deployments is SDS
G . The most commonly installed DSL variant for residential deployments is HDS
. At the DSL service provider location, a DSLAM typically is used to terminate all the PPP connections of the DSL subscribers.
. At the DSL service provider location, a DSLAM is used to terminate and then aggregate the DSL connections over an ATM network.

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Answer: A,C,G