You receive complaints from customers that your Web site is inaccessible. You check the Web server and notice that it is behaving sluggishly. You cannot explain the sluggishness because the server logs show that few Web server connections exist. However, a security worker notices that thousands of ICMP packets are being sent to the server every second, making the server drop connections. What type of attack is being waged against your site?
A. Password guessing
B. Social engineering
C. Denial of service
D. Brute force
正解:C
質問 2:
Cookies can be used to:
A. send personal information back to the Web server.
B. execute programs on a Web server.
C. spread viruses on a network.
D. target users for marketing.
正解:D
質問 3:
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?
A. Image
B. Img
C. HREF
D. RollOver
正解:A
質問 4:
Consider the following code:
<film> <year>1942</year> <title>Casablanca</title> <director>Michael Curtiz</director> </film>
What kind of code is shown in the preceding example?
A. VBScript
B. XML
C. HTML
D. activescript
正解:B
質問 5:
Tom is making changes to his company's Web site. Because he likes the way the markup is styled, he copies the following into another section of the page:
<div id="subsection"> This section is under construction</div>
Why does the home page not validate properly?
A. An ID attribute can be applied to only one element in a document.
B. A <div> tag can be used only once in each document's markup.
C. The <div> tag was not closed properly.
D. Element attributes must be declared in the style sheet.
正解:A
質問 6:
Tomas wants to resize the same vector image on different pages of his Web site. Which Web graphics format would be ideal for this?
A. GIF 87a
B. GIF 89a
C. SVG
D. JPEG
正解:C
質問 7:
You are creating a Web site for a customer, which will have many pages. You want to implement a single style sheet to control all the pages on the site. Which of the following would be the preferred method for doing so?
A. Use an exported style sheet.
B. Use an embedded style sheet.
C. Use an internal style sheet.
D. Use an external style sheet.
正解:D
質問 8:
Kara is using FrontPage 2003 to build a new Web site. She has just finished creating a template page that contains the layout, fonts and menu items for all other pages in the site, as well as an editable region for each page's individual content. Other members of Kara's design team are using Dreamweaver to also work on the site. What should Kara name this file?
A. KarasTemplate.tem
B. KarasTemplate.asp
C. KTem.htm
D. Ktem.dwt
正解:D
Arisawa -
1D0-520初心者の勉強意欲を阻害しかねません。安心します。