E. consider a tcp connection between hosts a and b. suppose that the tcp segments from a to b have source port number x and destination port number y. what are the source and destination port numbers for the segments traveling from b to a?
f. it is said that a tcp connection "probes" the network path it uses for available bandwidth. what is meant by that?
g. explain the process of a three way handshake in tcp that initiates communications on the internet.
h. the udp server described in class needed only one socket, whereas the tcp server needed two sockets. why? if the tcp server were to support n simultaneous connections, each from a different client host, how many sockets would the tcp server need? express your answer as an equation.
i. how does the congestion window (cwnd) increase on the receipt of an ack during slow-start? during congestion avoidance?
j. what controls when the transition between slow-start and congestion avoidance occurs?
k. in the basic tcp tahoe, what happens to cwnd and the slow-start threshold when loss is detected?

Formatting rows and columns is similar to cell formatting. in an openoffice calc spreadsheet, you can format data entered into rows and columns with the of the rows and columns options. you can insert rows and columns into, or delete rows and columns from, a spreadsheet. use the insert or delete rows and columns option on the insert tab. alternatively, select the row or column where you want new rows or columns to appear, right-click, and select insert only row or only column options. you can hide or show rows and columns in a spreadsheet. use the hide or show option on the format tab. for example, to hide a row, first select the row, then choose the insert tab, then select the row option, and then select hide. alternatively, you can select the row or columns, right-click, and select the hide or show option. you can adjust the height of rows and width of columns. select row and then select the height option on the format tab. similarly, select column, then select the width option on the format tab. alternatively, you can hold the mouse on the row and column divider, and drag the double arrow to the position. you can also use the autofit option on the table tab to resize rows and columns.