May 2019
Beginner to intermediate
296 pages
6h 58m
Japanese
Content preview from IT用語図鑑 ビジネスで使える厳選キーワード256
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176
関連用語
CDN
高 速に W e b サイトを配 信 するためのネットワーク
多くのサーバーを分散配置することで、Web サイトへのアクセスが 集中しても問題ないよ
うに 肩 代 わりするような 構 成 のこと。 大 規 模 な サ イトや 大 容 量 のファイル を 配 信 するとサ ー
バーに負荷がかかるが 、CDN のサービスを利用することで、高負荷に備えた環 境を安 価
に用意 でき、利用者としても高速に Web サイトを表 示できる。
「画像をCDNに配置したら、Webサーバーの通信量が激減したよ。」
Keyword
156
▶
しーでぃーえぬ
ストリーミン グ
……P36
負荷分散
……P254
用語に関連する話
用語の使用例用語の使用例
転送量制限を回避
レンタルサーバーなどを契約す
る際、転送量に制限があることが
多いが、CDNを使うとサーバー
の負荷だけでなく転送量の削減
にも効果がある。
動的コンテンツの危険性
ログインが必要なWebサイト
など、動的コンテンツをCDNで
キャッシュしてしまうと、他の利
用者がログインした情報が他の
人に閲覧される危険性がある。
Web フレームワークでの利用
jQuery や Bootstrap など、多くの
JavaScript ラ イブラリ や CSS フ
レームワークがCDN を利用して
配信されており、キャッシュによ
る高速な読み込みが見込める。
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.