Computer Networking
A group of 2m - 1 routers are interconnected in a centralized binary tree, with router at each tree node. Router I communicate with router J by sending a message to the root of the tree. The root then sends the message back down to J. Then find the mean router-router path length.

m - 1
2 (m - 2)
(2m - l)/mJ
2 (2m - 1)

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Computer Networking
You get a call from a network administrator who tells you that he typed the following into his router:Router (config) #router ospf 1Router (config-router) #network 10.0.0.0 255.0.0.0 area 0He tells you he still can't see any routes in the routing table. What configuration error did the administrator make?

The OSPF Process ID is incorrect.
The OSPF area is wrong.
The wildcard mask is incorrect.
The AS configuration is wrong.

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Computer Networking
What is a stub network?

A network with only one entry and no exit point.
A network with more than one exit point.
A network that has only one entry and exit point.
A network with more than one exit and entry point.

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