Computer Networking
Satellite-Switched Time-Division Multiple Access (SS/TDMA) is

None of these
a form of TDMA in which circuit switching is used to dynamically change the channel assignments
the method of determining which device has access to the transmission medium at any time.
All of these
a medium access control technique for multiple access transmission media

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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?

255.224.0.0
255.248.0.0
255.254.0.0
255.252.0.0
255.240.0.0

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