Brent is creating a client-side script to preload images used in rollovers on his Web site. In order for the images to be preloaded into the browser cache, which JavaScript object should Brent instantiate and point to the location of the needed image?

Jason needs to create a table with four columns and six rows. Which of the following attributes must he include in the <td> tag to allow the first cell to span across the entire width of the table?

Which of the following techniques helps stop a denial-of-service (DOS) attack in which an attacker has sent multiple ICMP or TCP packets to crash a Web server on the Internet?

George is developing an intranet site for his company. How can he establish consistency for the structure and layout of all the pages, but leave decisions about the content of each page to the individual departments?

A local philanthropic organization with a well-developed mission, vision and set of values has never had a Web site. The organization has hired Manuel to design a site. The president and directors of the organization want the mission, vision and values included in the site. This information is expressed as several paragraphs of text. What suggestion should Manuel offer?

Which of the following examples of Web site tone on the home page would be most appropriate for the audience indicated?

You are creating a Web site that uses a gradient fill for all page backgrounds on a site. To ensure that you can see the gradient through the image background, you should: