host A host B | seq=92 , 8 bytes data | |______________________| | | | ×los_____
ID: 3691457 • Letter: H
Question
host A host B
| seq=92 , 8 bytes data |
|______________________|
| |
| ×los___________ACK_ |
| seq=92 , 8 bytes |
|______________________|
| |
| ACK =? |
sendBase____________________|
=? | |
| |
time
(a)
host A host B
| |
| seq=92 , 8 bytes data |
|_____________________|
| ACK=100 |
| los ×______________ |
| |
| seq=100 , 20 bytes data|
| _____________________ |
| |
| ACK =? |
|______________________|
sendBase | |
=? | |
time
( b )
the figure above two scenarios in which host A send some packets to host B. Both users use TCP.
a ) In the first case, what will be the acknowledgment number of the last ACK sent by host B? What will be the new sendBase when host A receives the acknowledgement?
b ) In the second case, what will be the acknowledgment number of the last ACK sent by host B? What will be the new sendBase when host A receives the acknowledgement?
Explanation / Answer
a) ACK = 100
sendBase= 100
b) ACK = 120
sendBase= 120
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