Computer Networking
Computers in a LAN can be interconnected by radio and infrared technologies.

Multiplexer
Wireless LANs
255.255.255.255
Modem
Network Topologies

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Computer Networking
You are working with a network that has the network ID 10.9.0.0 and contains 73 networks. In the next year, you will be adding an additional 27 branch offices to your company. For simplified management, you want to keep the most possible hosts per subnet. Which subnet mask should you management, you want to keep the most possible hosts per subnet. Which subnet mask should you use?

255.254.0.0
255.224.0.0
255.248.0.0
255.252.0.0
255.240.0.0

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