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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次のうち、POP や IMAP に対応しているサーバーソフト
ウェアはどれか？
A）Postfix B）Sendmail C）qmail D）Dovecot
A）AAAA B）NS C）MX D）TXT
DNS レコードにおいて、メールサーバーについて指定す
る種別はどれか？
A）フルサービスリゾルバーのキャッシュによって古いサーバーに
アクセスされる量を減らすため
B）新しいサーバーへのアクセス数を増やすため
C）新しいサーバーの性能を向上させるため
D）DNS サーバーの負荷を減らすため
メールサーバーや Web サーバーを移転するときに、TTL
の値を変更する理由として正しいものはどれか？
A）スパムメールの大量送信
B）SNS の利用者数の増加
C）メールサーバーの性能不足
D）短期的なアクセス集中
メールの輻輳が発生する理由として考えにくいものはどれ
か？
正解）Q1：D、Q2：C、Q3：A、Q4：B
Let's learn about email technology!
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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.