Computer Networking
In OSI model, which of the following layer transforms information from machine format into that understandable by user

None of these
session
physical
application
presentation

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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?

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

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