GATE IT 2004 | Question: 24

Question

Which one of the following statements is FALSE?

• A. HTTP runs over TCP
• B. HTTP describes the structure of web pages
• C. HTTP allows information to be stored in a URL
• D. HTTP can be used to test the validity of a hypertext link

Answer 1

B is false, HTTP is protocol, which has no relations with the structure of a web page. Web page structure is given using HTML.

Comments

Thats correct. But the structure of web page is described only by HTML. ASP.NET and JSP are used on server side for web development- still for making the web page structure we have to use HTML- as it is the one supported by browsers.

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Yes, agree!

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HTTP allows information to be stored in a URL...how??

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Thats nothing but a webpage. A webpage can be requested using a HTTP protocol and we get all information contained on it. (For structuring information on webpage we use HTML and its understood by all browsers).

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How Option D is correct?

Answer 2

HTTP uses TCP as the underlying Network Layer protocol.

Option A is True.

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HTTP is essentially used for "passing messages" between the browser and the server. HTTP can't influence/describe the webpage structure in any way.

HTML is used to describe webpage structure.

Option B is False.

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Let's take a URL for an example.

http://www.cs.vu.nl/video/index-en.html

This URL consists of three parts:

1. the protocol (http)
2. the DNS name of the host(www.cs.vu.nl)
3. the file name (video/index-en.html)

Now what is the definition of information? I can say these three parts as providing me some information.

 

Moreover, the URL leads us to the webpage (information). HTTP can, in some sense, "store" this information(webpage) into a URL and let the client have access to it.

 

By these reasonings

Option C is True.

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HTTP is used by broswer clients to fetch the required webpage from the server. If you type in a hypertext link which is invalid, HTTP won't fetch that page.

Try: http://abcd.1234.bh.com

Option D is True.