Computer Networking
You have a class A network address 10.0.0.0 with 40 subnets, but are required to add 60 new subnets very soon. You would like to still allow for the largest possible number of host IDs per subnet. Which subnet mask should you assign?

255.254.0.0
255.252.0.0
255.248.0.0
255.255.255.255
255.240.0.0

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Computer Networking
If a switch receives a frame and the source MAC address is not in the MAC address table but the destination address is, what will the switch do with the frame?

Add the source address and port to the MAC address table and forward the frame out the destination port
Discard it and send an error message back to the originating host
Add the destination to the MAC address table and then forward the frame
Flood the network with the frame

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Computer Networking
Carrier is

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

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