Web Development and Design Foundations with XHTML, 5th Edition

Answers^649

The files used by these technologies take up bandwidth and slow the delivery of

pages. If most of your target audience use a dial-up connection, this may be a

concern.

Checkpoint 11.3

1. JavaScript can be used to add a wide range of interactive effects to a Web page
   including form validation, pop-up windows, jump menus, message boxes, image
   rollovers, status message changes, calculations, and so on.


2. DHTML can be used to add a wide range of dynamic interactive effects to a Web
   page, including dynamic navigation that displays based on mouse movements,
   hiding and showing elements such as navigation areas based on mouse move-
   ments, and animation in which the CSS positioning properties of elements are
   changed.


3. The combination of technologies called Ajax can respond to use actions (such
   as mouse clicks on text entry) by changing the position of a Web page display
   without refreshing the entire page. Web sites using Ajax include Google maps
   (http://maps.google.com), Flickr (http://www.flickr.com), and del.icio.us
   (http://del.icio.us).

Review Questions

1. a


2. b


3. b


4. c


5. b


6. a


7. a


8. d


9. b


10. c


11. 8-bit


12. fair use


13. dynsrc


14. Java Virtual Machine


15. Document Object Model (DOM)


16. Answers will vary but may include
    the following: large file size to
    download, uneven support of
    browser plug-ins, and the time, tal-
    ent, and software required to create
    audio or video content.


17. Creative Commons at http://
    creativecommons.org provides a free
    service which allows authors and
    artists to register a type of a copy-
    right license. The Creative
    Commons license informs others
    exactly what they can and cannot
    do with the creative work

Chapter 12

Checkpoint 12.1

1. There are many advantages when engaging in e-commerce. This is especially true
   for a small business owner who must watch costs carefully. Advantages include
   very low overhead, 24/7 business hours, and global sales potential.