Computer Networking
Ethernet networks can be cabled in a number of topologies, depending on what works best in each environment. As more nodes are added, the efficiency of Ethernet decreases. Select the best answer as to why Ethernet becomes less efficient as size increases.

Cable terminators do not absorb the signal properly
Repeaters cannot increase the signal strength sufficiently
Cable terminators do not reflect the signal properly
Network collisions occur
"Line echo" occurs due to the impedance of the cable

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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
An additional token is added for every 1,000 nodes
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
Which of the following technique is used for Time-To-Line (TTL)?

a technique used in best-effort delivery system to avoid endlessly looping packets.
None of these
One of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size.
All of these
a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame

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