Computer Networking
The fundamental requirements of private-to-public network interconnection methods which need to be provided in gateways is/are

to assign address to private network DTEs
adequate cost control mechanisms for administration of the private networks
A and B both
universal accessibility for private network Data Terminal Equipment (DTE)
None of these

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

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Computer Networking
The packets switching concept was first proposed

All of these
in the late 1980s for the Defense Ministry of US.
in the early 1960s for military communication systems, mainly to handle speech
None of these
in the late 1950s for Defense Ministry of US

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