Business, 18.02.2020 01:51 xojade

Suppose the bandwidth on a point-to-point link to moon is 2 Mbps and the one-way propagation delay is 1 second. Assume that size of each packet is 125 bytes. Assume that window-size can be adjusted to achieve the maximum transmission rate. Answer the following for each ARQ scheme: stop-and- wait, go-back-n and selective-repeat

(a) (9 pt.) Assuming that the link is error-free, what is maximum rate of transmission achievable from earth to moon? (Assume zero queuing delay, and assume zero transmission time for ACK packets).

(b) (3 pt.) Assuming that the link is error-free, to keep the pipe full for efficiency, what should be the window size that will allow go-back-n and selective repeat to achieve the maximum rate of transmission in part (a)?

(c) (9 pt.) What is the minimum number of bits you need for the sequence number to achieve the above maximum rate of transmission.

(d) (9 pt.) Suppose that we are continuously transmitting packets from earth to moon and the 4 packet is lost and no other packets or ACKs are lost. How many and which packets get retransmitted?

Answers: 2

Show answers

Another question on Business

Business, 22.06.2019 03:30

Diversified semiconductors sells perishable electronic components. some must be shipped and stored in reusable protective containers. customers pay a deposit for each container received. the deposit is equal to the container’s cost. they receive a refund when the container is returned. during 2018, deposits collected on containers shipped were $856,000. deposits are forfeited if containers are not returned within 18 months. containers held by customers at january 1, 2018, represented deposits of $587,000. in 2018, $811,000 was refunded and deposits forfeited were $41,000. required: 1. prepare the appropriate journal entries for the deposits received and returned during 2018. 2. determine the liability for refundable deposits to be reported on the december 31, 2018, balance sheet.

Answers: 1

Answer

Business, 22.06.2019 04:40

What is ur favorite song and by who i know dis is a random question

Answers: 2

Answer

Business, 22.06.2019 09:00

Aminor has the legal right to repudiate

Answers: 2

Answer

Business, 22.06.2019 15:20

Record the journal entry for the provision for uncollectible accounts under each of the following independent assumptions: a. the allowance for doubtful accounts before adjustment has a credit balance of $500. b. the allowance for doubtful accounts before adjustment has a debit balance of $250. c. assume that octoberʼs credit sales were $70,000. uncollectible accounts expense is estimated at 2% of sales. smith, gaylord n.. excel applications for accounting principles (p. 51). cengage textbook. kindle edition.

Answers: 1

Answer

You know the right answer?

Suppose the bandwidth on a point-to-point link to moon is 2 Mbps and the one-way propagation delay i...

Questions