Computer Networking
To set up a bulletin board system you need

None of these
a smart modem with auto-answer capabilities
a telephone line
All of these
a personal computer

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

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Computer Networking
The Internet Control Message Protocol (ICMP)

All of these
allows gateways to send error a control messages to other gateways or hosts
reports error conditions to the original source, the source must relate errors to individual application programs and take action to correct the problem
None of these
provides communication between the Internet Protocol Software on one machine and the Internet Protocol Software on another

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Computer Networking
The main difference between synchronous and asynchronous transmission is

the pulse height is different.
the clocking is mixed with the data in asynchronous transmission
the clocking is derived from the data in synchronous transmission
None of these
the bandwidth required is different

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