Computer Networking
When a group of computers is connected together in a small area without the help of telephone lines, it is called

Remote communication network (RCN)
Wide area network (WAN)
Value added network (VAN)
Local area network(LAN)
None of these

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Computer Networking
What is the problem with an interface if you type show interface serial 0 and receive the following message? "Serial0 is administratively down, line protocol is down."

No cable is attached.
The administrator is pinging from the interface.
The keepalives are different times.
The administrator has the interface shut down.

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Computer Networking
Modulation is the process of

converting digital signals to analog signals
Multiplexing various signals into high speed line signals
performing data encryption.
converting analog signals to digital signals

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

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