Computer Networking
Which of the following is an advantage to using fiber optics data transmission?

low noise level
fast data transmission rate
All of these
resistance to data theft
few transmission errors

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

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

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