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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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.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.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.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.
63
2
I
T
関連用語
用語に関連する話
用語の使用例
パ ケットとフレ ーム
通信の基本単位
パ ケ ット 通 信 方 式 の ネ ットワ ー ク で 送 受 信 す る た め に 、 通 信 内 容 を 一 定 の 大 き さ に 分 割 し
て送信する際に使われる送信単位。一般にパケットはOSI 参照モデルのネットワーク層（第
3 層 ）で 主 に I P アドレス で やり取りするデ ータに 使 わ れるの に 対し、フレーム はデ ータリン
ク層 （ 第 2 層 ）で 主 に M A C アドレ ス で やり取りするデ ータに 使 わ れ る。
I P フラグ メンテーション
一度に送信できないような大き
なパケットを、分割して送信する
ために断片化することをIPフラ
グメンテーションと言い、受信者
側では結合して元に戻す。
パケットの長さの最大値
転送できるパケットの長さの最
大値をMTUと言う。これを超え
るデータはルーターによって分
割されることがあるため、サイズ
によって通信速度に影響がある。
混雑で発生するパケ詰まり
インターネットに接続できてい
るが、回線が混雑していてパケッ
トが流れない状態をパケ詰まり
と言う。利用者の増加や大容量の
データ、電波の干渉などが原因。
▶
ぱ け っと
▶
ふれーむ
Keyword
048
「今月は動画を見過ぎたからパケット代がすごい金額になっちゃったよ。」
パケット通信と回線交換
……P52
プロトコルと OSI 参照モデル
……P55
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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.