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

Wireless
PPPoE
Dedicated T1
Frame Relay
DSL

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Computer Networking
You save the configuration on a router with the copy running-config startup-config command and reboot the router. The router, however, comes up with a blank configuration. What can the problem be?

You didn
The newly upgraded IOS is not compatible with the hardware of the router.
The configuration register setting is incorrect.
NVRAM is corrupted.

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