Answer:
Selective Repeat protocols
Explanation:
It is better to make use of the selective repeat protocol here. From what we have here, there is a high error rate on this channel.
If we had implemented Go back N protocol, the whole N packets would be retransmitted. Much bandwidth would be needed here.
But we are told that bandwidth is limited. So if packet get lost when we implement selective protocol, we would only need less bandwidth since we would retransmit only this packet.
Barcode number, description, price, and sales associate.
Answer:
There are several main criteria for determining whether a source is reliable or not.
1) Accuracy. Verify the information you already know against the information found in the source
2) Authority. Make sure the source is written by a trustworthy author and/or institution
3) Currency
4) Coverage
Explanation:
A good website to learn coding is called Lynda.com. It costs money but its well worth it!
