Computer Networking
Which statement(s) about IPv6 addresses are true?1. Leading zeros are required.2. Two colons (::) are used to represent successive hexadecimal fields of zeros.3. Two colons (::) are used to separate fields.4. A single interface will have multiple IPv6 addresses of different types.

2 and 4
1 and 3
1, 3 and 4
All of these

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Computer Networking
CSMA (Carrier Sense Multiple Access) is

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

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Computer Networking
Contention is

the condition when two or more stations attempt to use the same channel at the same time
a continuous frequency capable of being modulated or impressed with a second signal
None of these
One or more conductors that serve as a common connection for a related group of devices
a collection of interconnected functional units that provides a data communications service among stations attached to the network

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