1. Net431:advanced net services
Networks and Communication Department
Tutorial 4

2. at least any two general headers, any two request headers,
Q1: Show a request that retrieves the document /usr/users/doc/doc1. Use :
at least any two general headers,
any two request headers,
And any one entity header.
27-Nov-18
Networks and Communication Department

3. GET /usr/users/doc/doc.1 HTTP /1.1 Date: Fri, 13-Jan-06 08:45:20 GMT
MIME-version: 1.0
Accept: image/gif
Accept: image/jpeg
Last modified: Mon, 09-Jan-06
27-Nov-18
Networks and Communication Department

4. Q2. Show the response to Question #1, 1 for a successful request with four lines of header. The header lines define the date, server, MIME version, and length of the document for a document with 4623 lines.
27-Nov-18
Networks and Communication Department

5. HTTP/1.1 200 OK Date: Fri, 13-Jan-06 08:45:25 GMT Server: Challenger
MIME-version: 1.0
Content-length: 4623
(Body of document)
27-Nov-18
Networks and Communication Department

6. Q3: Show the response to Question #1 for a document that has permanently moved to /usr/deads/doc1. With three lines of header defines the date, new server name and new location.
27-Nov-18
Networks and Communication Department

7. HTTP/1.1 301 Moved permanently Date: Fri, 13-Jan-06 08:45:25 GMT
Server: Challenger
Location: /usr/deads/doc.1
27-Nov-18
Networks and Communication Department

8. Q4: Show the response to Question #1 if there is a syntax error in the request. With two headers for server and date.
27-Nov-18
Networks and Communication Department

9. HTTP/1.1 400 Bad Request Date: Fri, 13-Jan-06 08:45:25 GMT
Server: Challenger
27-Nov-18
Networks and Communication Department

10. Q5. Show the response to Question#1 if the client is unauthorized to access the document with two headers for server and the date of access.
27-Nov-18
Networks and Communication Department

11. HTTP/1.1 401 Unauthorized Date: Fri, 13-Jan-06 08:45:25 GMT
Server: Challenger
27-Nov-18
Networks and Communication Department

12. Q6: Show a request that asks for information about a document at /bin/users/file.
Use at least:
two general headers.
and one request header.
27-Nov-18
Networks and Communication Department

13. HEAD /bin/users/file HTTP /1.1 Date: Fri, 13-Jan-06 10:40:22 GMT
MIME-version: 1.0
From:
27-Nov-18
Networks and Communication Department

14. Q7: Show a request to retrieve the file at location /bin/etc/file
Q7: Show a request to retrieve the file at location /bin/etc/file!. The client needs the document of any type of medium only if it was modified after January 23, use four line of headers. With date and MIME-version.
27-Nov-18
Networks and Communication Department

15. GET /bin/etc/file1 HTTP /1
GET /bin/etc/file1 HTTP /1.1 Date: Fri, 13-Jan-06 11:22:08 GMT MIME-version: 1.0 Accept: */* If-modified-since: 23-Jan :00:00 GMT
27-Nov-18
Networks and Communication Department

16. Q8: Show a request to send and store a file at location /bin/letter
Q8: Show a request to send and store a file at location /bin/letter. The client Should identifies the types of documents it can accept (text/html), (gif), (jpeg). There will be six lines of header with (date, MIME-version).
27-Nov-18
Networks and Communication Department

17. PUT /bin/letter HTTP /1.1 Date: Fri, 13-Jan-06 11:47:00 GMT MIME-version: 1.0 Accept: text/html Accept: image/gif Accept: image/jpeg Location: /bin/letter
27-Nov-18
Networks and Communication Department

18. Q9: Show the response to Question#8
Q9: Show the response to Question#8. The response shows seven lines of headers the age of the document, Server, MIME- version, content type and length as well as the date and time when the contents may change.
27-Nov-18
Networks and Communication Department

19. Content-type: text/html Content-length: 6324 Age: 10:06:02
HTTP/ OK
Date: Fri, 13-Jan-06 11:51:02 GMT
Server: Challenger
MIME-version: 1.0
Content-type: text/html
Content-length: 6324
Age: 10:06:02
Expires: 09-May-06 00:00:00 GMT
27-Nov-18
Networks and Communication Department

20. Q10: Compare between Persistent vs non- persistent HTTP connections?
27-Nov-18
Networks and Communication Department

21. Persistent vs non-persistent HTTP connections
default for HTTP/1.1
on same TCP connection: server, parses request, responds, parses new request,..
less slow start.
HTTP/1.0
server parses request, responds, and closes TCP connection
Each object transfer suffers from slow start

22. Q&A
27-Nov-18
Networks and Communication Department