Computer Networking
The application layer of a network

defines the user's port into the network
establishes, maintains, and terminates virtual circuits
None of these
consists of software being run on the computer connected to the network
All of these

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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?

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

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Computer Networking
Two connected routers are configured with RIP routing. What will be the result when a router receives a routing update that contains a higher-cost path to a network already in its routing table?

They will all load-balance.
The existing routing table entry will be deleted from the routing table and all routers will exchange routing updates to reach convergence.
The updated information will replace the existing routing table entry.
The update will be ignored and no further action will occur.
The updated information will be added to the existing routing table.

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