Computer Networking
CSMA (Carrier Sense Multiple Access) 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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Computer Networking
A network administrator views the output from the show ip route command. A network that is advertised by both RIP and IGRP appears in the routing table flagged as an IGRP route. Why is the RIP route to this network not used in the routing table?

The IGRP route has fewer hops.
RIP has a higher metric value for that route.
IGRP has a lower administrative distance.
IGRP has a faster update timer.

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