Computer Networking
Which statement(s) about IPv4 and IPv6 addresses are true? 1. An IPv6 address is 32 bits long, represented in hexidecimal. 2. An IPv6 address is 128 bits long, represented in decimal. 3. An IPv4 address is 32 bits long, represented in decimal. 4. An IPv6 address is 128 bits long, represented in hexidecimal.

2 only
3 and 4
2 and 4
1 and 3 only

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Computer Networking
HDLC (High-level Data Link Control) is

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

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