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 speed of the Token-Ring network must be 16Mbps if the number of nodes is greater then 500
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
The network becomes more efficient
An additional token is added for every 1,000 nodes

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Computer Networking
Modulation is the process of

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

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Computer Networking
The corporate office sends you a new router to connect, but upon connecting the console cable, you see that there is already a configuration on the router. What should be done before a new configuration is entered in the router?

The new configuration should be entered and saved.
NVRAM should be erased and the router restarted.
Flash should be erased and the router restarted.
RAM should be erased and the router restarted.

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Computer Networking
You are working on a router that has established privilege levels that restrict access to certain functions. You discover that you are not able to execute the command show running-configuration. How can you view and confirm the access lists that have been applied to the Ethernet 0 interface on your router?

show interface Ethernet 0
show access-lists
show ip access-lists
show ip interface Ethernet 0

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