HTTP, HTTPS, HTML, URL, XML, XSLT, CSS: Difference between revisions

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HTTPS (also called HTTP over TLS, HTTP over SSL,  and HTTP Secure) is a protocol for secure communication over a computer network which is widely used on the Internet. HTTPS consists of communication over Hypertext Transfer Protocol (HTTP) within a connection encrypted by Transport Layer Security, or its predecessor, Secure Sockets Layer. The main motivation for HTTPS is authentication of the visited website and protection of the privacy and integrity of the exchanged data.<ref>https://en.wikipedia.org/wiki/HTTPS</ref>
HTTPS (also called HTTP over TLS, HTTP over SSL,  and HTTP Secure) is a protocol for secure communication over a computer network which is widely used on the Internet. HTTPS consists of communication over Hypertext Transfer Protocol (HTTP) within a connection encrypted by Transport Layer Security, or its predecessor, Secure Sockets Layer. The main motivation for HTTPS is authentication of the visited website and protection of the privacy and integrity of the exchanged data.<ref>https://en.wikipedia.org/wiki/HTTPS</ref>
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Characteristics here
* HTTPS URLs begin with "https://" and use port 443 by default, whereas HTTP URLs begin with "http://" and use port 80 by default.
* HTTPS encrypts the request and response. If you were to snoop (or spy) on the network data, you would only (theoretically) see the origin and destination IP and port numbers
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Revision as of 10:05, 26 March 2017

Web Science[1]


Characteristics of the web[edit]

You must memorize this content. You should be able to recognize these acronyms and identify the characteristics of each.

Term Definition Characteristics
HTTP

The Hypertext Transfer Protocol (HTTP) is an application protocol for distributed, collaborative, and hypermedia information systems. HTTP is the foundation of data communication for the World Wide Web.[2].

  • HTTP is an application-layer protocol
  • HTTP functions as a request–response protocol [3]
  • HTTP is the protocol to exchange or transfer hypertext [4]
  • HTTP is stateless - Each transaction between the client and server is independent and no state is set based on a previous transaction or condition.[5]
  • HTTP Uses requests from the client to the server and responses from the server to the client for sending and receiving data. [6]
  • HTTP utilizes headers at the start of each message.[7]
HTTPS

HTTPS (also called HTTP over TLS, HTTP over SSL, and HTTP Secure) is a protocol for secure communication over a computer network which is widely used on the Internet. HTTPS consists of communication over Hypertext Transfer Protocol (HTTP) within a connection encrypted by Transport Layer Security, or its predecessor, Secure Sockets Layer. The main motivation for HTTPS is authentication of the visited website and protection of the privacy and integrity of the exchanged data.[8]

  • HTTPS URLs begin with "https://" and use port 443 by default, whereas HTTP URLs begin with "http://" and use port 80 by default.
  • HTTPS encrypts the request and response. If you were to snoop (or spy) on the network data, you would only (theoretically) see the origin and destination IP and port numbers
HTML

HyperText Markup Language, commonly referred to as HTML, is the standard markup language used to create web pages[9]. Please see our wiki page on HTML for a deeper discussion of HTML.

Characteristics here

URL

Definition here

Characteristics here

XML

Definition here

Characteristics here

XSLT

Definition here

Characteristics here

CSS

Definition here

Characteristics here

URI

Definition here

Characteristics here

Do you understand this?[edit]

You must simply memorize these. There isn't anything fancy about this. If you need help memorizing, please use a mnemonic strategy.

http: Please please click here to view http response headers in google chrome

Standards[edit]

These standards are used from the IB Computer Science Subject Guide[10]

  • Identify the characteristics of the following: HTTP, HTTPS, HTML, URL, XML, XSLT, CSS.

References[edit]

  1. ↑ http://www.flaticon.com/
  2. ↑ https://en.wikipedia.org/wiki/Hypertext_Transfer_Protocol
  3. ↑ https://en.wikipedia.org/wiki/Hypertext_Transfer_Protocol
  4. ↑ https://en.wikipedia.org/wiki/Hypertext_Transfer_Protocol
  5. ↑ http://www.comptechdoc.org/independent/web/http/reference/httprfccopy.html
  6. ↑ http://www.comptechdoc.org/independent/web/http/reference/
  7. ↑ http://www.comptechdoc.org/independent/web/http/reference/
  8. ↑ https://en.wikipedia.org/wiki/HTTPS
  9. ↑ https://en.wikipedia.org/wiki/HTML
  10. ↑ IB Diploma Programme Computer science guide (first examinations 2014). Cardiff, Wales, United Kingdom: International Baccalaureate Organization. January 2012.

Provide an answer from a number of possibilities. Recognize and state briefly a distinguishing fact or feature.

Give a specific name, value or other brief answer without explanation or calculation.

a group or system of interconnected people or things.

Provide an answer from a number of possibilities. Recognize and state briefly a distinguishing fact or feature.

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