Answer:
data
Explanation:
got it right on edgenuity
 
        
             
        
        
        
The number of memory words used to store the string "rainbow" is 8.
        
             
        
        
        
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.