Computer Networking
The application layer of a network

defines the user's port into the network
All of these
consists of software being run on the computer connected to the network
establishes, maintains, and terminates virtual circuits
None of these

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Computer Networking
The research and development department at your office has been experimenting with different technologies to help improve the performance of the network. One group has been examining the use of a broadband network versus a based band network. Select the correct statement about broadband and baseband.

Baseband networks carry a single channel on a single cable, whereas broadband networks carry several channels on a single cable
Baseband refers to local area networks, and broadband refers to wide area networks.
Broadband and baseband refer to the different frequencies at which infrared operates then transmitting signals in certain conditions
Broadband networks carry several channels on a single cable, whereas in a baseband network several cables carry one channel
Baseband operates at a standard bit rate, whereas broadband may operate at different rates as needed

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Computer Networking
MAC is

network access standard for connecting stations to a circuit-switched network
a method access control technique or multiple-access transmission media
None of these
a method of determining which device has access to the transmission medium at any time
a very common bit-oriented data link protocol issued to ISO.

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