Computer Networking
You type the following command into the router and receive the following output:Router#show serial 0/0 ^% Invalid input detected at '^' marker.Why was this error message displayed?

Part of the command is missing.
You need to be in privileged mode.
You cannot have a space between serial and 0/0.
The router does not have a serial0/0 interface.

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Computer Networking
Ethernet and Token-Ring are the two most commonly used network architectures in the world. Jim has heard of the different topologies for networks and wants to choose the architecture that will provide him with the most options. Which of the following would that be? Choose the most correct answer.

Ethernet, because it can be set up with most topologies and can use multiple transfer speeds
Token-Ring because it currently can run at both 4Mbps and 16Mbps. This means that it can be used in any topology
Neither Token-Ring nor Ethernet is the proper choice. Only ARCnet can be used in all topologies
Ethernet, because it is cabled using fiber-optic cable
Token-Ring, because it uses a MAU

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

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