Computer Networking
The network address of 172.16.0.0/19 provides how many subnets and hosts?

7 subnets, 30 hosts each
8 subnets, 8,190 hosts each
7 subnets, 2,046 hosts each
8 subnets, 2,046 hosts each

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Computer Networking
What does the passive command provide to dynamic routing protocols?

Stops an interface from sending or receiving periodic dynamic updates.
Stops the router from sending any dynamic updates.
Stops the router from receiving any dynamic updates.
Stops an interface from sending periodic dynamic updates but not from receiving updates.

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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
"Line echo" occurs due to the impedance of the cable
Cable terminators do not absorb the signal properly

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