Computer Networking
A modem that is attached to the telephone system by jamming the phone's handset into two flexible receptacles in the coupler?

None of these
gateway
acoustic coupler
bridge
time-division multiplexer

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Computer Networking
The application layer of a network

consists of software being run on the computer connected to the network
All of these
None of these
establishes, maintains, and terminates virtual circuits
defines the user's port into the network

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Computer Networking
A network administrator is connecting hosts A and B directly through their Ethernet interfaces, as shown in the illustration. Ping attempts between the hosts are unsuccessful. What can be done to provide connectivity between the hosts?1. A crossover cable should be used in place of the straight-through cable.2. A rollover cable should be used in place of the straight-through cable.3. The subnet masks should be set to 255.255.255.192.4. A default gateway needs to be set on each host.5. The subnet masks should be set to 255.255.255.0.

3 and 4 only
1 and 5 only
2 only
1 only
2 and 5 only

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