Computer Networking
When you ping the loopback address, a packet is sent where?

Down through the layers of the IP architecture and then up the layers again
Across the wire
On the network
None of these
through the loopback dongle

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Computer Networking
Demodulation is a process of

multiplexing various signals into one high speed line signals
performing data description.
converting analog to digital signals
converting digital to analog signals

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Computer Networking
How does a host on an Ethernet LAN know when to transmit after a collision has occurred?1. In a CSMA/CD collision domain, multiple stations can successfully transmit data simultaneously.2. In a CSMA/CD collision domain, stations must wait until the media is not in use before transmitting.3. You can improve the CSMA/CD network by adding more hubs.4. After a collision, the station that detected the collision has first priority to resend the lost data.5. After a collision, all stations run a random backoff algorithm. When the backoff delay period has expired, all stations have equal priority to transmit data.

2 and 4
1 and 3
2 and 5
1,3 and 4

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