Plug-ins and Extensions - Quiz Explanation

Common plug-ins and extensions

The correct answers are indicated below, along with the text that explains the correct answers.
1. Which plug-in or extension would you use to view a three-dimensional home with an introduction by the realtor on the Web?
Please select the best answer.
  A. Shockwave
  B. RealPlayer
  C. QuickTime VR
  D. Flash
  The correct answer is C. QuickTime VR allows users a 360-degree view of images coupled with audio and video. None of the other choices have that capacity. Answer A and answer D are incorrect because Shockwave and Flash allow for elaborate animations with basic interactivity. Answer B is incorrect because RealPlayer does not support three-dimensional imaging.

2. Which plug-in or extension would you use to listen to your favorite band's MP3 songs on the Net?
Please select the best answer.
  A. QuickTime
  B. Windows Media Player
  C. Cosmo Player
  D. Macromedia Flash
  The correct answer is B. Windows Media Player is the only choice that supports MP3 files. Answer A is incorrect because QuickTime plays audio, video, and MIDI files but not MP3 files. Answer C is incorrect because Cosmo Player displays VRML or virtual reality worlds on the Web. Answer D is incorrect because Macromedia Flash supports animation and graphics and is best for computer games.

3. What is a plug-in's main advantage to a developer?
Please select the best answer.
  A. To show multimedia requiring a license
  B. To show multimedia not requiring a license
  C. To show multimedia both requiring and not requiring a license
  D. To not show multimedia regardless of license
  The correct answer is B. The main advantage of plug-ins is that they let designers view multimedia without having to license the technology to view them. Answers A, C, and D are therefore incorrect.