Computer Networking
If an Ethernet port on a router were assigned an IP address of 172.16.112.1/25, what would be the valid subnet address of this host?

172.16.255.0
172.16.96.0
172.16.112.0
172.16.0.0

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

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Computer Networking
What does a switch do when a frame is received on an interface and the destination hardware address is unknown or not in the filter table?

Forwards the switch to the first available link
Sends back a message to the originating station asking for a name resolution
Drops the frame
Floods the network with the frame looking for the device

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Computer Networking
Demodulation is a process of

multiplexing various signals into one high speed line signals
converting analog to digital signals
performing data description.
converting digital to analog signals

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