Computer Networking
Which of the following communications modes support two-way traffic but in only one direction of a time?

three-quarters duplex
simplex
full-of the above
None of these
half-duplex

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

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Computer Networking
TCP is:

Connection orientated and unreliable
None of these
Connection orientated and reliable
Connectionless and unreliable
Operates at the Data Link layer

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