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Understanding Network Fundamentals: OSI Model, TCP/IP, and Ethernet Explained

Join our comprehensive seminar as we delve into the intricacies of networking. Explore the OSI Model and its seven layers, discover the roles of TCP/IP in data transmission, and understand the function of Ethernet and LAN. We’ll also explain DHCP for dynamic IP addressing, how DNS translates domain names, and the significance of MAC addresses. Learn about various networking methods, including CSMA/CD and Token Ring. This seminar is perfect for those eager to understand how networks operate, from local setups to global Internet interactions.

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Understanding Network Fundamentals: OSI Model, TCP/IP, and Ethernet Explained

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  1. Network Seminar. by jwSeo

  2. OSI 7-Layer Ethernet IP Gateway DHCP TCP/IP DNS MAC Address Hurb Router Switch UDP

  3. LAN이란? : Local Area Network Networks란? Internet 은?

  4. 어떻게? 네트워킹을 할…까?

  5. Ethernet은? *CSMA/CD Carrier Sence Multiple Access / Collision Detection Ethernet Card?

  6. Ethernet외에도 Token ring등 여러 방식이 있음

  7. *Protocol… IPX TCP/IP UDP

  8. 왜 스타크래프트를할때 IPX로 했을까?

  9. *TCP/IP 네트워크에 접속되는 호스트는 고유의 주소를 가지고 있어서 자신이 속해 있는 네트워크 뿐만 아니라 다른 네트워크에 연결되어 있는 호스트 까지도 서로 데이터를 주고 받을 수 있음 NIC. Internet Protocol http://whois.nic.or.kr

  10. Physical / Fixed / Hardware MAC Address ARP: Address Resolution Protocol IP Address

  11. LanCard는 각자의 MAC을 갖음. ∴ MAC이 중복될 리 없음 BUT What about IP?

  12. DHCP Dynamic Host Configuration Protocol 그 많은 IP주소를 어떻게 관리할까? # ipconfig /all

  13. 물론, DHCP를 사용하지 않고 고정된 IP를 설정해도 상관 없음.

  14. Router IP Address = Network+Host network# + host# Class A (0+7)bit + 24bit2^24=16,777,214 Class B 128.1.x.x ~ 191.254.x.x Class C 192.0.1.x ~ 223.255.254.x

  15. Subnet Mask 1 = network 0 = host

  16. DNS : Domain Name Service http://zetin.uos.ac.kr DNS Server 172.16.166.95 # nslookup

  17. Hurb Switch Router

  18. 7. Application : HTTP, FTP, Telnet 6. Presentation : JPEG, SMB, AFP 5. Session : SSH 4. Transport : TCP, UDP 3. Network : IP, IPX 2. Datalink : Ethernet, TokenRing 1. Physical : Modem, CoxialLine… OSI 7 Layer

  19. # ping # nslookup # ipconfig # tracert # netstat

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