Tuesday, May 8, 2012

  1. Define the term - Protocol
The established code of procedure or behavior in any group, organization, or situation.

  1. What are the following protocols used for?

TCP/IP provides end-to-end connectivity specifying how data should be formatted, addressed, transmitted, routed and received at the destination 

http -
Hypertext Transfer (or Transport) Protocol, the data transfer protocol used on the World Wide Web.

Simple Mail Transfer Protocol (SMTP) is an Internet standard for electronic mail

pop - a point of presence (PoP) is an artificial demarcation point or interface point between communications entities

FTP- File transfer protocol, a standard for the exchange of program and data files across a network.

  1. What does GUI stand for? What was used before GUI?
Graphical user interface. GUI lets you interact with your computer using pictures and symbols, rather than having to memorize many complicated commands and type them precisely

  1. There are two methods of data transmission – serial and parallel. Explain the difference between them.
Components connected in series are connected along a single path, so the same current flows through all of the components. Components connected in parallel are connected so the same voltage is applied to each component.

  1. Define the term “URL”. Explain the components that make up the url.
Uniform (or universal) resource locator, the address of a World Wide Web page. An address.

  1. In the context of data transmission, what is “error detection”?
corrects and detects errors.

  1. Why would error detection be important for the internet
connection between codes

  1. Name and explain one common method of error detection.
not connected

  1. What is HTML and explain why it is important
Hypertext Markup Language, a standardized system for tagging text files to achieve font, color, graphic, and hyperlink

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