Used to provide reliable transport 1) alternating bit protocol (abp) and retransmission timers are of segments. the figure below shows a time sequence diagram of abp and retransmission a b data. req(a) d(0,a) data. ind(a) c(oko) data. req(b) d(1, b) retransmission timer d(1,b) data. ind(b) c(ok1) duplicate detected c(ok1) data. req(c) d(0, c) retransmission timer d(o, c) data. ind(e) timers being implemented. explain how retransmission timers and the alternating bit protocol work. considera link connecting two host at 10 mbits/secwith a propagation delay between each host of 250ms. if the hosts send 1000 bit segments, what is the maximum a. b. throughput, if alternating bit protocol is being implemented? why is this bad?

3. (6 pts) internally in the computer, with few exceptions, all numerical computation is done using binary numbers. output, however, often uses ascii, which is formed by appending 011 to the left of a bcd code. thus, an algorithm that directly converts a binary integer to a bcd integer is very useful. here is one such algorithm 1) draw lines to the left of the binary number to bound the expected bcd decades. (each decade is a group of 4 bits.) move the binary number one bit to the left. add 0011 to each bcd decade containing a binary value> 0100 repeat steps 2-3 until the last bit in the binary number has been moved into the least significant decade position. (note that when the last bit has been shifted into bcd decade, step 3 is not repeated.) read the bcd result. 2) 3) 4) 5) a) execute the algorithm for the binary number 1101101 b) execute the algorithm for the binary number 01110101110 4. (4 pts) represent the decimal number 3568 in bcd; excess-3 code; ascil; and hex.

When running anti-virus software , what could be a reason where recipitent is not guaranteed that data being streamed will not get interrupted?

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