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오엑스
저자:오엑스 수년전부터현업에서활동중인IT강사. 기업과공공기관재직자부터IT입문자까지 다양한학습자를대상으로네트워크를설명해왔다. 강의현장에서가장많이나왔던 질문과막막함을바탕으로, 네트워크를암기가아닌흐름으로이해할수있도록 이책을집필했다.
0.전체커리큘럼0-1책의전체목표0-2커리큘럼목적과기능1.네트워크기본개념1-1네트워크정의와필요성1-2네트워크구성요소(호스트,노드,링크등)1-3패킷과회선,트래픽의흐름1-4네트워크성능지표(대역폭,지연,손실률등)1-5프로토콜개념과표준화기관(ISO,IETF등)2.OSI7계층개요2-1OSI모델탄생배경2-3OSIvsTCP/IP비교2-4캡슐화와역캡슐화흐름3.1계층물리계층(PhysicalLayer)3-1역할과책임3-2비트전송방식(아날로그/디지털)3-3케이블종류(UTP,STP,광섬유등)3-4허브와리피터의동작3-5신호간섭과손실4.2계층데이터링크계층(DataLinkLayer)4-1프레임구조와MAC주소4-2스위치의동작원리4-3ARP,RARP4-4오류제어(Checksum,CRC)4-5흐름제어와프레임동기화4-6VLAN개념및태깅5.3계층네트워크계층(NetworkLayer)5-1IP주소구조(IPv4/IPv6)5-2IP데이터그램과IP단편화5-3서브넷마스크와주소구분5-4클래스풀(Classful)주소체계5-5CIDR(ClasslessInter-DomainRouting)5-6라우팅과라우터의역할5-7ICMP(InternetControlMessageProtocol)5-8NAT(NetworkAddressTranslation)6.4계층전송계층(TransportLayer)6-1전송계층의역할과포트개념6-2TCP와UDP개요6-3TCP연결설정(3-wayHandshake)6-4TCP데이터전송과신뢰성보장6-5TCP연결종료(4-wayHandshake)6-6UDP의특성과활용분야7.5계층세션계층(SessionLayer)7-1세션계층의역할과개념7-2세션생성과관리7-3체크포인팅(Checkpointing)7-4세션동기화(Synchronization)7-5세션복구기능8.6계층표현계층(PresentationLayer)8-1세션계층의역할과개념8-2데이터변환(인코딩,압축,암호화)8-3문자인코딩방식(UTF-8등)8-4SSL/TLS와표현계층의위치8-5표현계층이보이지않는이유9.7계층응용계층(ApplicationLayer)9-1응용계층의역할과개념9-2HTTP와HTTPS9-3DNS동작과정9-4이메일프로토콜9-5FTP,SFTP9-6DHCP와SNMP10.네트워크장비정리10-1네트워크장비한눈에보기10-2L2스위치vsL3스위치10-3라우터,방화벽,로드밸런서10-4IDS/IPS기본개념10-5무선AP구성요소10-6네트워크장비배치11.네트워크주소체계실습11-1IP주소와서브넷마스크기초실습11-2네트워크,호스트,서브넷,브로드캐스트주소계산11-3CIDR기반주소범위계산실습11-4실제네트워크구성시주소설계11-5라우터인터페이스IP실습11-6실습정리&체크포인트12.실제인터넷구조이해12-1인터넷은하나의거대한네트워크가아니다12-2AS(AutonomousSystem)개념12-3ISP와인터넷계층구조12-4BGP와인터넷라우팅12-5CDN과인터넷트래픽흐름12-6실제인터넷통신흐름정리13.네트워크보안기초13-1네트워크보안이필요한이유13-2네트워크공격의종류13-3방화벽(Firewall)13-4DMZ(DeMilitarizedZone)13-5IDS/IPS13-6기본보안개념정리14.네트워크트러블슈팅14-1네트워크트러블슈팅이란?14-2OSI7계층기반문제접근14-3ping명령어로확인하기14-4traceroute로경로추적14-5IP문제해결14-6로그와패킷분석14-7트러블슈팅정리15.부록15-1주요프로토콜&포트번호정리15-2OSI7계층한눈에보기15-3TCP/IP모델요약15-4네트워크자격증가이드15-5실무에서꼭기억할핵심15-6마무리하며
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