I am getting answer as 9, someone please post their solution stepwise, that would be of great help to identify the mistake.
After the timeout new window size will be set to 1MSS and not to 2MSS..
I assume the solution is given as 10MSS because either the new threshold is set to 8MSS instead of 7 or the given solution is wrong.
"The question asks the window size at the end of 10th transmission. The window size increases by 1 after the acknowledgment are received, not at the end of the transmission. "
Observe this statement in the above link.
you got 9 add 1 to it. This will make answer as 10.
I think it take ceil (15/2) = ceil (7.5) = 8
@Magma why we take ceil(7.5) can you please elaborate this.