May 2022
Beginner to intermediate
756 pages
21h 30m
Korean
book
HTTP 완벽 가이드
by David Gourlry, Brian Totty, Lee Eung Jun, Sang -Il Jeong, Anshu Agarwal, Seilu Reddy, Marjorie Sayre
Content preview from HTTP 완벽 가이드
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187
7
장 캐시
The Definitive Guide
트워크 종류의 차이에 따라 극적으로 달라진다.
1
이더넷 LAN이라면 5MB 크기의
파일을 전송하는데 1초도 걸리지 않지만, 56-Kbps 모뎀이라면 749초(12분 이상)가
걸릴 것이다.
큰
HTML
(
15KB
)
JPEG
(
40KB
) 큰
JPEG
(
150KB
) 큰 파일 (
5MB
)
전화식 모뎀
(
56
킬로비트/초)
2
.
19
5
.
85 21
.
94 748
.
98
DSL
(
256
킬로비트/초)
.
48 1
.
28 4
.
80 163
.
84
T1
(
1
.
4
메가비트/초)
.
09
.
23
.
85 29
.
13
느린 이더넷
(
10
메가비트/초)
.
01
.
03
.
12 4
.
19
DS3
(
45
메가비트/초)
.
00
.
01
.
03
빠른 이더넷
(
100
메가비트/초)
.
00
.
00
.
01
.
42
표
7
-
1
이상적인 환경에서의, 대역폭별 전송 시간 지연(초 단위)
7.3
갑작스런 요청 쇄도(
Flash
Crowds
)
캐싱은 갑작스런 요청 쇄도에 대처하기 위해 특히 중요하다. 갑작스런 사건(뉴스
속보, 스팸 메일, 유명 인사와 관련된 사건 등)으로 인해 많은 사람이 거의 동시에
웹 문서에 접근할 때 이런 일이 발생한다(그림 7-2). 이 결과로 초래된 불필요한 트
래픽 급증은 네트워크와 웹 서버의 심각한 장애를 야기시킨다.
케네스 스타의 클린턴 미 대통령에 대한 조사에 대해 자세한 내용이 ...
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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.