Computer Networking
Which fields are contained within an IEEE Ethernet frame header?1. Source and destination MAC address2. Source and destination network address3. Source and destination MAC address and source and destination network address4. FCS field

3 only
2 only
2 and 3 only
1 and 4

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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?

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

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Computer Networking
Bus is

a collection of interconnected functional units that provides a data communications service among stations attached to the network
one or more conductors that some as a common connection for a related group of devices
None of these
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

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Computer Networking
The data-link layer, in reference to the OSI model, specifies

None of these
the interface between the X.25 network and packet mode device
the virtual circuit interface to packet-switched service
All of these
data link procedures that provide for the exchange of data via frames that can be sent and received

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