Computer Networking
Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?1. Switch2. NIC3. Hub4. Repeater5. RJ45 transceiver

1 only
3 and 4
1 and 3
5 only
All of these

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Computer Networking
A T-switch is used to

None of these
transmit characters one at a time
echo every character that is received
rearrange the connections between computing equipment
control how messages are passed between computers

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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.

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

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