Agroup of n stations share a 56-kbps pure aloha channel. each station outputs a 1000-bit frame on average once every 100 sec, even if the previous one has not yet been sent (e. g., the stations can buffer outgoing frames). what is the maximum value of n?

One of your customers wants you to build a personal server that he can use in his home. one of his concerns is making sure he has at least one backup of their data stored on the server in the event that a disk fails. you have decided to back up his data using raid. since this server is for personal use only, the customer wants to keep costs down. therefore, he would like to keep the number of drives to a minimum. which of the following raid systems would best meet the customer's specifications? a. raid 0 b. raid 1 c. raid 5 d. raid 10