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Network Services

Network Services. Networking for Home and Small Businesses – Chapter 6. Objectives. Compare and contrast clients and servers and their interaction over the network. Describe the type of interactions of Internet applications. Describe the purpose of a layered model

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Network Services

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  1. Network Services Networking for Home and Small Businesses – Chapter 6

  2. Objectives • Compare and contrast clients and servers and their interaction over the network. • Describe the type of interactions of Internet applications. • Describe the purpose of a layered model • Illustrate the interaction of various protocols.

  3. Compare and Contrast Clients and Servers • Review the client/server relationship.

  4. Client-Server Protocols • Application, Transport, Internetwork and Network access protocols.

  5. TCP and UDP Transport Protocols • Differentiate between acknowledged versus unacknowledged protocols.

  6. Port Numbers in Client-Server Conversations • Describe the function of a port.

  7. Types of Interactions of Internet Applications • Describe DNS and its purpose.

  8. Types of Interactions of Internet Applications • Describe the interaction between a web client and a web server.

  9. Types of Interactions of Internet Applications • Describe the interaction between an FTP client and an FTP server.

  10. Types of Interactions of Internet Applications • Describe the interaction between e-mail clients and e-mail servers.

  11. Types of Interactions of Internet Applications • Describe the interaction between IM / Peer-to-Peer clients and e-mail servers.

  12. Types of Interactions of Internet Applications • Describe the interaction between voice clients and servers.

  13. Types of Interactions of Internet Applications • Well-known ports • Registered ports • Private ports

  14. Purpose of a Layered Model • Protocols operate as an interdependent stack • Each layer provides and receives services

  15. Purpose of a Layered Model • Describe protocol operation when sending and receiving a message.

  16. Purpose of a Layered Model • Describe the Open Systems Interconnect Model

  17. Summary • Clients and servers use protocols and standards for exchanging information. • Client-server services are identified through the use of port numbers. • A protocol stack organizes the protocols in layers, with each layer providing and receiving services from the layers below and above it. • When sending messages, protocols interact from the top layer to the bottom of the stack. • When receiving messages, protocols interact from the bottom layer to the top of the stack.

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