Computer Networking
The term 'duplex' refers to the ability of the data receiving stations to echo back a confirming message to the sender. In full duplex data transmission, both the sender and the receiver

can receive and send data simultaneously
can send or receive data one at a time
None of these
cannot talk at once
can do one way data transmission only

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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.
NVRAM is corrupted.
The configuration register setting is incorrect.

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