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

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

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Computer Networking
Which of the following technique is used for encapsulation?

None of these
a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame.
a technique used in best-effort delivery systems to avoid endlessly looping packets.
All of these
One of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size

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Computer Networking
Demodulation is the process of

dividing the high-speed signals into frequency bands
converting digital signals to analog signals
converting analog signals to digital signals
None of these
combining many low speed channels into one high speed channel

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