Computer Networking
CSMA (Carrier Sense Multiple Access) is

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.
network access standard for connecting stations to a circuit-switched network
a method access control technique for multiple-access transmission media.
None of these

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Computer Networking
Which of the following is true when describing a multicast address?

These addresses are meant for nonrouting purposes, but they are almost globally unique so it is unlikely they will have an address overlap.
Packets are delivered to all interfaces identified by the address. This is also called a one-to-many address.
Packets addressed to a unicast address are delivered to a single interface.
Identifies multiple interfaces and is only delivered to one address. This address can also be called one-to-one-of-many.

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Computer Networking
The main difference between synchronous and asynchronous transmission is

None of these
the clocking is mixed with the data in asynchronous transmission
the bandwidth required is different
the clocking is derived from the data in synchronous transmission
the pulse height is different.

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