February 2024
Beginner to intermediate
304 pages
9h 13m
Japanese
Content preview from 実務で使える メール技術の教科書 基本のしくみからプロトコル・サーバー構築・送信ドメイン認証・添付ファイル・暗号化・セキュリティ対策まで
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電子メールの送信に一般的に使われているプロトコルはど
れか。
A）HTTP B）SMTP C）FTP D）POP
A）Cc は添付ファイルを指し、Bcc は差出人を指す
B）Cc はカーボンコピーを差し、Bcc はブラインドカーボンコピー
を指す
C）Cc は返信を意味し、Bcc は転送を意味する
D）Cc でも Bcc でも違いはない
Cc と Bcc の違いとして正しいものはどれか。
A）POP はクライアント側で、IMAP はサーバー側でメールを管理
する
B）POP は新しいプロトコルで、IMAP は古いプロトコルである
C）POP はメールの送信に、IMAP は受信に使われるプロトコルで
ある
D）POP と IMAP でできることは同じである
POP と IMAP の違いとして正しいものはどれか。
A）すべての IP アドレスにはドメイン名が対応している
B）ドメイン名は企業でないと取得できない
C）プロバイダと契約するとドメインが自動的に付与される
D）1 つのドメイン名には複数のサブドメインを設定できる
ドメイン名についての記述のうち、正しいものはどれか。
正解）Q1：B、Q2：B、Q3：A、Q4：D
Let's learn about email technology!
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040-058̲mail̲NSM̲F2.indd58040-058̲mail̲NSM̲F2.indd58 2024/01/259:372024/01/259:37
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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.