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?

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

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Computer Networking
Satellite-Switched Time-Division Multiple Access (SS/TDMA) is

a medium access control technique for multiple access transmission media
a form of TDMA in which circuit switching is used to dynamically change the channel assignments
All of these
the method of determining which device has access to the transmission medium at any time.
None of these

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