Computer Networking
The network address of 172.16.0.0/19 provides how many subnets and hosts?

7 subnets, 30 hosts each
8 subnets, 8,190 hosts each
7 subnets, 2,046 hosts each
8 subnets, 2,046 hosts each

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Computer Networking
MAC is

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

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