問69
頻出度★★★
RSSの説明として，適切なものはどれか。
平成25年度 秋期 ITパスポート試験 問69
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This question's explanation and your answers so far.
解説
問 69
Incorrectア
“A mechanism for giving consistency to the color scheme and design of a website” describes CSS (Cascading Style Sheets). CSS is a technology that specifies the appearance of an HTML document (text color, background color, fonts, layout, and so on) collectively, separately from the structure of the content, so its purpose is completely different from RSS, which distributes update information.
- イ
正解 RSS is a format for describing a website's headlines (titles), summaries, update times, link URLs, and similar items in a structured way using XML, and it is used to distribute a site's update information to the outside world (web syndication). The site publishes an RSS file (a feed) that collects its updates, and if a user subscribes to that feed with an RSS reader, a browser, or a portal site, they can grasp new articles and whether updates exist all in one place, without visiting each site one by one. Delivering the “what's new” information of news sites and blogs is a typical use. Therefore イ, which says “It is a format for describing the headlines and summaries of a website, and is used to publish a website's update information,” is the correct answer.
Incorrectウ
“Embedding a small image in a web page to collect information about users' access trends” describes a web beacon (also called a web bug). It makes the browser load an invisible image of about one pixel and then tracks the visitor's behavior from the record of that request; it is an access-analysis technique and has nothing to do with RSS, which describes headlines and summaries.
Incorrectエ
“A design philosophy for providing a web environment that many people can use comfortably regardless of age, culture, or disability” describes web accessibility (applying the idea of universal design to the web). This is a way of thinking about design, not a data description format, so it does not match the definition of RSS.
ここがポイント
- RSS = a format that describes a site's headlines, summaries, update times, and so on in XML in order to distribute update information (web syndication). Subscribing with an RSS reader lets you check the latest items from several sites in one place.
- Distinguish confusable web-related terms: CSS = specifying appearance (design), web beacon = collecting access trends via a small image, web accessibility = a design philosophy aiming at a web everyone can use.
用語