シャドーイング練習: Cloud Models - CompTIA Network+ N10-009 - 1.3 - 動画で英語スピーキングを学ぶ
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When you're deploying a cloud -based application, you also need to consider who will be accessing that application and from where.
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If you're creating an application that anyone on the internet would need to access,
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then you would probably want to include it in a public cloud so that everyone can gain access.
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But if you're building out a cloud -based application that is for internal use only,
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you may want to deploy this to your own virtualized local data center where you have a private cloud.
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organizations, we often use both of these.
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And we need a hybrid configuration of both public and private clouds for all of these applications.
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One type of cloud model is software as a service, or SAS.
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This is commonly associated with software that is on demand.
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You have a login screen in your browser, you log in, and now you have access to the application.
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Someone else has written the application, someone else manages the application, your data is stored somewhere within that application,
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and you don't have to do anything else to be able to use that particular app.
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You don't have a local installation of software, manage or upgrade any of the software itself.
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Instead, you simply log in and use the app.
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This allows for centralized management of the application and the data that you're putting into the application,
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which means everything is being stored on a third party cloud platform.
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This is a complete application offering, and you don't have to do any type of development work to be able to use that app.
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A good example of software as a service would be an app like Google Mail or Office 365, where you simply log in and use the app.
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There may be times when you would like to build your own application and deploy and manage your own data,
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and all you really need are the computing resources to be able to run that application.
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In that model, you want to use Infrastructure as a Service, or IAAS.
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Sometimes you'll see this referred to as Hardware as a Service,
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or HAAS, because you're effectively using hardware in the cloud and then using your own software on top of that.
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This means that you would be responsible for installing your software and managing all of the data associated with that software.
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If the software needs to be upgraded, you would be the one to upgrade it on your infrastructure as a service model.
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The application that you're using and the data that you're putting into that application is still in the cloud.
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But you have much more control over the access and security of that data when you're using infrastructure as a service.
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A good example of infrastructure as a service is with web service providers, where you can buy time on a particular web server,
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and they make that server available to everyone on the internet.
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A middle ground between software as a service and infrastructure as a service is Platform as a Service, or PAAS.
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This is still in the cloud, but you're the one who manages all of the development efforts to customize the application to your specifications.
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The cloud provider gives you all of the tools necessary to build this particular app.
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You can think of this as a series of building blocks provided by the Platform as a Service infrastructure,
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filled out those blocks to create your own application.
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The underlying engine that runs the application is the responsibility of the Platform as a Service provider.
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And your responsibility is to build and maintain the apps that are running in Platform as a Service.
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A good example of a Platform as a Service infrastructure would be something like Salesforce .com,
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where they give you all of the tools necessary to create a customized application running on the Salesforce .com platform.
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Here's an example of a cloud responsibility matrix that you might find with any cloud service provider.
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In this chart, I've separated out software as a service, platform as a service, infrastructure as a service, and then an on -prem device that you would manage yourself.
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Obviously, with on -prem, everything from the data to the applications to the physical data center are all the responsibility of the customer.
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But with infrastructure as a service, you have the physical data center, the physical network, physical hosts, all provided by the cloud provider.
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And then you handle all of the other pieces of that particular application.
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With Platform as a Service, you can see that network controls,
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applications, and the identity and directory infrastructure may be shared between the customer and the cloud provider.
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But you'd still be responsible for the accounts, devices, and the information and data.
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With Software as a Service, much more of these are provided by the provider themselves.
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Everything associated with the applications is clearly in the responsibility of the provider.
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Everything above that would still be the responsibility of the customer.
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So depending on the type of infrastructure you want, and the type of responsibility that you're willing to take on,
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you'll need to pick the right cloud model for your application deployment.
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コンテキスト & 背景
このビデオでは、クラウドベースのアプリケーションのデプロイに関する議論が展開されます。特に、アプリケーションにアクセスする人々やその場所について考慮が必要です。一般的に、インターネット上の誰でもアクセスする必要があるアプリケーションはパブリッククラウドにデプロイされますが、内部利用のためのアプリケーションはプライベートクラウドが推奨されます。このような背景の中で、視聴者はクラウドの異なるモデルであるSaaS（サービスとしてのソフトウェア）、IaaS（サービスとしてのインフラ）、PaaS（サービスとしてのプラットフォーム）の違いを理解することができます。
日常コミュニケーションのためのトップ5フレーズ
- 「アプリケーションにログインする」 - すぐにソフトウェアにアクセスすることを意味します。
- 「データがクラウドに保存される」 - インターネット経由でデータを管理することに関連します。
- 「自身のソフトウェアを管理する」 - IaaSモデルにおけるユーザーの責任を示します。
- 「クラウドサービスプロバイダー」 - クラウドインフラを提供する企業を指します。
- 「カスタマイズされたアプリケーションを構築する」 - PaaSモデルにおけるユーザーの役割を強調します。
ステップバイステップ シャドーイングガイド
このビデオの内容は、クラウドコンピューティングの重要なコンセプトを紹介しています。以下のステップでシャドーイングを行い、英語スピーキング練習を効果的に行いましょう。
- ビデオを数回視聴する - 内容を把握し、話し方や言葉の使い方を理解します。
- 短いセクションに分ける - ビデオを小さなパートに区切り、一つずつ集中します。
- 声に出してリピートする - 聞いたセリフを真似て発音の練習をします。特に重要なフレーズに焦点を当ててみましょう。
- 実際に使う状況を想定する - シャドーイングしたフレーズを日常の会話の中で使ってみてください。
- 録音してレビューする - 自分の発音を録音し振り返ることで、改善点を見つけることができます。
このプロセスを通じて、IELTS スピーキング対策や英語シャドーイングのスキルを向上させることが期待できます。また、shadowspeakやshadow speakのテクニックを活用することで、より自然な英会話ができるようになるでしょう。
この動画の文法
話し手がよく使っている文型を、動画の実際の表現とともに紹介します。
| 文型 | 動画での表現 |
|---|---|
| 受動態 be + 過去分詞 — 誰がするかより、何が起きるかに焦点を当てる | is stored · being stored · be upgraded |
| 現在完了形 have/has + 過去分詞 — 過去の出来事が今も関係している | has written · I've separated |
シャドーイングとは？英語上達に効果的な理由
シャドーイング（Shadowing）は、もともとプロの通訳者養成プログラムで開発された言語学習法で、多言語習得者として知られるDr. Alexander Arguelles によって広く普及されました。方法はシンプルですが非常に効果的：ネイティブスピーカーの英語を聞きながら、1〜2秒の遅延で声に出してすぐに繰り返す——まるで「影（shadow）」のように話者を追いかけます。文法ドリルや受動的なリスニングと異なり、シャドーイングは脳と口の筋肉が同時にリアルタイムで英語を処理・再現することを強制します。研究により、発音精度、抑揚、リズム、連音、リスニング力、そして会話の流暢さが大幅に向上することが確認されています。IELTSスピーキング対策や自然な英語コミュニケーションを目指す方に特におすすめです。