Computer Networking
What does the command o/r 0x2142 provide?

It is used to enter ROM Monitor mode.
It is used to view the lost password.
It is used to restart the router.
It is used to bypass the configuration in NVRAM.

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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

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

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Computer Networking
Contention is

One or more conductors that serve as a common connection for a related group of devices
the condition when two or more stations attempt to use the same channel at the same time
a continuous frequency capable of being modulated or impressed with a second signal
None of these
a collection of interconnected functional units that provides a data communications service among stations attached to the network

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