Computer Networking
How should a router that is being used in a Frame Relay network be configured to keep split horizon issues from preventing routing updates?

Configure many subinterfaces in the same subnet.
Configure a single subinterface to establish multiple PVC connections to multiple remote router interfaces.
Configure a separate subinterface for each PVC with a unique DLCI and subnet assigned to the subinterface.
Configure each Frame Relay circuit as a point-to-point line to support multicast and broadcast traffic.

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Computer Networking
The physical layer, in reference to the OSI model, defines

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

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Computer Networking
Two computers that communicate with each other use a simple parity check to detect errors for ASCII transmissions. Which of the following events will always lead to an undeleted error?

two bits or any even number of bits inverted in a block during transmission
two bits or any even number of bits inverted in a byte during transmission
one bit or any odd number of bits inverted in a byte during transmission
one bit or any odd number of bits inverted in a block of data during transmission
None of these

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