Computer Networking
The Token-Ring architecture was developed for a more efficient way to determine who should be transmitting at any one time. With Ethernet, collisions may take place, causing the transmitting computers to have to retransmit their data. The use of token guarantees that only one computer can transmit at a time. What happens as the network increases in size? Choose the best answer

The network becomes less efficient
After the number of nodes exceeds 550, the Multistation Access Unit must be replaced by the more powerful Hyperstation Unified Bandwidth device
An additional token is added for every 1,000 nodes
The network becomes more efficient
The speed of the Token-Ring network must be 16Mbps if the number of nodes is greater then 500

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Computer Networking
What is a stub network?

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.
A network with only one entry and no exit point.

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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."

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

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Computer Networking
The packets switching concept was first proposed

None of these
in the early 1960s for military communication systems, mainly to handle speech
in the late 1950s for Defense Ministry of US
in the late 1980s for the Defense Ministry of US.
All of these

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