The answer is 2-to-the-power-of-n, since for every input, the number of different combinations doubles. From your list I think answer A is meant to indicate 2ⁿ.
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.
Well, this is pretty tricky so lets define all the purposes of these
Safe mode - troubleshoots windows ; determines HARDWARE malfunctions
Check device manager - Highlights malfunctioning hardware that is connected to the P.C.
Refreshing pc - practically nothing
resetting your pc - removes all programs, files, etc. and starts as a new Windows.
I will have to go with answer C.) Refresh your P.C.
These two charts show both cause and effect relationships. T-charts, for instance, compares one word and contrast the other. It can help graphically make decisions by comparing resulting advantages and disadvantages or explaining the strengths and weaknesses of a piece of writing. The same case goes to the use of a star chart. A star chart is a map of the night sky that astronomers use to divide into grids for comparison. It turns the night sky into a readable map that helps humans travel the world just by using the stars.
It provides ongoing capability and actionable coordinated views of an enterprise’s strategic direction, business services, information flows, and resource utilization.
