Computer Networking
Which of the following is the address of the router?

The subnet mask
The IP address
The TCP address
None of these
The default gateway

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Computer Networking
X.21 is

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

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