Aserver s is designed for computers to test if they are located behind nats or not. the server has two public ip addresses, i1 and i2, and has allocated two ports, p1 and p2 (either udp or tcp port), for this purpose. note that the ip address and the port numbers are known to every computer which wants to use this service. (a) design your protocol so that a computer a, by exchanging packets with s, can test if it is located behind an nat or not. (b) assume it is behind an nat. repeat (a) if computer a needs to determine if the nat is a symmetric type or not.

In which view can you see speaker notes?

7.23 main lab 7 - online shopping cart background this main lab extends the earlier prep lab "online shopping cart part 1". (you should save this as a separate project from the earlier prep lab). you will create an on-line shopping cart like you might use for your on-line purchases. the goal is to become comfortable with setting up classes and using objects. requirements this lab can be done individually or as pair programming. expanded itemtopurchase class (15 points) extend the itemtopurchase class as follows. we will not do unit testing in this lab so we will not be giving you the names of the member functions. create good ones on your own. create a parameterized constructor to assign item name, item description, item price, and item quantity (default values of "none" for name and description, and 0 for price and quantity). additional public member functions set an item description get an item description print the cost of an item - outputs the item name followed by the quantity, price, and subtotal (see example) print the description of an item - outputs the item name and description (see example) additional private data members a string for the description of the item. example output of the function which prints the cost of an item: bottled water 10 @ $1.50 = $15.00 example output of the function which prints the item description:

What components of nonverbal communication are depicted in these photographs? a. clothing b. artifacts c. emblems d. masking