exercise 2 question F

The comparison between Frame 42 and the frame 48 are mention below:
Frame 42
Hypertext Transfer Protocol
GET /us.yimg.com/i/ww/dsf_1.1.js HTTP/1.1\r\n
request method: GET
Request URI: /us.yimg.com/i/ww/dsf_1.1.js
Request Version: HTTP/1.1
Host: us.il.yimg.com\r\n
user -agent: mozilla/5.0
Accept: */*\r\n
Accept Encoding: gzip, deflate\r\n
Accept-Charset:ISO-8859-1, utf-8; q=0.7, * ; q=0.7\r\n
keep alive: 300\r\n
connection: keep-alive\r\n
Referer: http://www.yahoo.com/\r\n
\r\n
Now
Frame 48 got the following description
Hypertext Transfer Protocol
GET /us.yimg.com/i/ww/beta/y3.gif HTTP/1.1\r\n
Request Method: GET
Request URI: /us.yimg.com/i/ww/beta/y3.gif
Request Version: HTTP/1.1
HOST: us.il.yimg.com\r\n
User Agent: Mozilla/5.0
Accept: image/png,*/*; q=0.5\r\n
Accept-encoding: gzip, deflate \r\n
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\n
keep Alive: 300\r\n
Connection: keep-alive\r\n
Referer: http://www.yahoo.com/\r\n
\r\n

While comparing these two information what we found is there is not much difference in both frames. Both frame is running HTTP protocol and request method is GET and using the same Request Version. The only difference is Accept method and the Request URI.
In accept method the Frame 42 can accept any kind of files with any extension while in the frame 48 the accept method shows that the all the image file should have the extension png. And the request URI has the different request.
Frame 42 request the Java script while the frame 48 request the .gif