This week is an activity week, so points for effort, not for correctness.

you are about to break a lot of things. it is going to be easier for you to unbreak some things than it is to unbreak others. spend the time working on the things you have the most trouble with.

make sure you can create sessions, add and update different kinds of data to sessions and end sessions.

make sure you can make http requests, including posts, from the server and deal with the data you get back.

make sure that you can set up pages to accept data from forms.

make sure you can handle nested asynchronous requests and process errors if they crop up (force errors to happen by doing things like entering in the wrong url).

as an example mini project that would cross off several of these at once (you don't need to do this, but if you need inspiration feel free to use it) , you could extend the to-do list application. allow the user to add to-do items, the cities those to-do items need to happen in and minimum temperatures.

then make http calls to open weather map to check if the weather is good enough right now to do them. if it is, highlight it in green, if not highlight it in red. this will check you understanding of sessions, making many http requests and dealing with json returned by the server.

you would still want to make sure you can make http posts from the server but if you did that all your bases will be covered.

deliverables

submit a pdf. in that pdf discuss in 2 or 3 paragraphs what you had the most difficulty with, what problems it was giving you and what steps you took to fix it. also briefly describe how you checked your understanding of the above listed topics. what type of things did you do? what services did you use?

it should you get an understanding of where you need more clarity and it will also me figure out which concepts need more attention.

1. package newton’s method for approximating square roots (case study 3.6) in a function named newton. this function expects the input number as an argument and returns the estimate of its square root. the script should also include a main function that allows the user to compute square roots of inputs until she presses the enter/return key. 2. convert newton’s method for approximating square roots in project 1 to a recursive function named newton. (hint: the estimate of the square root should be passed as a second argument to the function.) 3. elena complains that the recursive newton function in project 2 includes an extra argument for the estimate. the function’s users should not have to provide this value, which is always the same, when they call this function. modify the definition of the function so that it uses a keyword parameter with the appropriate default value for this argument, and call the function without a second argument to demonstrate that it solves this problem. 4. restructure newton’s method (case study 3.6) by decomposing it into three cooperating functions. the newton function can use either the recursive strategy of project 1 or the iterative strategy of case study 3.6. the task of testing for the limit is assigned to a function named limitreached, whereas the task of computing a new approximation is assigned to a function named improveestimate. each function expects the relevant arguments and returns an appropriate value. 5. a list is sorted in ascending order if it is empty or each item except the last one is less than or equal to its successor. define a predicate issorted that expects a list as an argument and returns true if the list is sorted, or returns false otherwise. (hint: for a list of length 2 or greater, loop through the list and compare pairs of items, from left to right, and return false if the first item in a pair is greater.)

Is an attack that relies on guessing the isns of tcp packets

Your friend kayla is starting her own business and asks you whether she should set it up as a p2p network or as a client-server network. list three questions you might ask to kayla decide which network to use and how her answers to those questions would affect your recommendation.