1.For each statement below, say whether it applies to TCP, UDP, both, or neither

Question

1.For each statement below, say whether it applies to TCP, UDP, both, or neither (2 pts)

a._________     Uses source and destination protocol ports in the header

b._________      Reliable

c.__________   Used for multicast and broadcast

d._________    Connection-less

Indicate whether each statement applies to a client, a server, both, or neither. (4 pts)

a.   ________________          Always running                                             

b.   ________________          Ends after client-server interaction is done

c.   ________________          Network aware program

d.    _______________           Does all user interface tasks

e . __ _____________           Listens for incoming requests, but never initiates a connection

3.What is one difference between an HTTP request message and an HTTP response message? (2 pts)

4.Answer the following questions concerning HTTP caching: (6 pts)

a.What is caching?

b.How does it improve the performance of a browser?

c.What is one difference between HTTP caching in a browser and in a proxy server?

Explanation / Answer

1 a TCP

B TCP

C UDP

D UDP

2 a server

B neither

C neither

D server

E server

Http request send the communication message and http response gives response to that particular message which uses get and post methods

4 Caching is temporary storage area which stores webpages where they can be accessed easily with out getting request and response from the server

B the browser can check the cachestorage place if the webpages are stores and the same pages are accessed they can be called with out the initiate the connection to the server which save a lot of time

C a proxy server is which is used to send transaction secretly between client and server . communication path is not known to client and server .http cache is for fetching data locally this is mainly used for reloading the pervious webpages without communication with the server storing locally

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