Use the following diagram of Sliding Window to answer the questions 6-10

6. Which byte has been sent and acknowledged?

199

201

203

209

7. Which byte has been sent but NOT acknowledged?

199

201

203

209

8. Which byte is NOT ready to be sent? (for flow control)

199

201

203

209

9. If the congestion window size is 20, what is the receiver window size (rwnd)?

8

9

>10

None of the above

10. Assuming the rwnd size deternine in the earlier question, if the congestion window size was now reduced to 4, what is the value of the sliding window now?

4

8

9

None of the above

11. What is the problem of the Silly Window Syndrome?

Lost packets

Ineffective use of network bandwidth (resource)

Out of sequence delivery

Unreliable data transfer

12. What problem does the Nagles solution attempt to solve with respect to the Silly Windows Syndrome?

Reduce latency time with sending out data

More efficiently utilize the network bandwidth and resouces

Reduce router table size

Perform error correction

13. What is the cost of of implementing the Nagles solution?

increases latency time with sending out data

inefficiently utilizes the network bandwidth and resouces

increases the router table size

allows errors to go uncorrected

14. Which of the following will trigger a retransmission?

Retransmission Time Out (RTO)

A special control message from the receiver

Two duplicate ACK segments

None of the above

15. Which of the following is a correct statement of slow start for TCP congestion control?

Increase cwnd by one MSS for each segment acknowledged

Increase cwnd by a random number after each ACK

Increase cwnd by one for each ACK

None of the above

Use the following diagram of Sliding Window to answer the questions 6-10 Sliding Window 199 200 201 202 203204 205 206 207 208 209210 Next Byte