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OSI Transport Layer

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  • This chapter explain the role of Transport Layer protocols and services in supporting communications across data networks, analyze the application and operation of TCP mechanisms that support reliability, analyze the application and operation of TCP mechanisms that support reassembly and manage data loss, analyze the operation of UDP to support communicate between two processes on end devices.

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  • In this chapter, you learned to: Explain the role of Transport Layer protocols and services in supporting communications across data networks, analyze the application and operation of TCP mechanisms that support reliability, analyze the application and operation of TCP mechanisms that support reassembly and manage data loss,...

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  • OSI Transport Layer. In this chapter, we examine the role of the Transport layer. The Transport layer also encompasses these functions: Enables multiple applications to communicate over the network at the same time on a single device. Ensures that, if required, all the data is received reliably and in order by the correct application. Employs error handling mechanisms. Learning Objectives–Upon completion of this chapter, you will be able to: Explain the need for the Transport layer.

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  • Explain the role of Transport Layer protocols and services in supporting communications across data networks Analyze the application and operation of TCP mechanisms that support reliability Analyze the application and operation of TCP mechanisms that support reassembly and manage data loss. Analyze the operation of UDP to support communicate between two processes on end devices

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  • After completing this chapter, students will be able to: Explain the role of Physical layer protocols and services in supporting communication across data networks, describe the role of signals used to represent bits as a frame as the frame is transported across the local media, describe the purpose of Physical layer signaling and encoding as they are used in networks.

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  • This chapter explain the role of Physical layer protocols and services in supporting communication across data networks, describe the role of signals used to represent bits as a frame as the frame is transported across the local media, describe the purpose of Physical layer signaling and encoding as they are used in networks. For more information, inviting you refer lecture.

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  • The primary duties of the transport layer, Layer 4 of the OSI model, are to transport and regulate the flow of information from the source to the destination, reliably and accurately. End-to-end control and reliability are provided by sliding windows, sequencing numbers, and acknowledgments To understand reliability and flow control, think of someone who studies a foreign language for one year and then they visit the country where that language is used.

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  • Explain the role of Physical layer protocols and services in supporting communication across data networks. – Describe the role of signals used to represent bits as a frame as the frame is transported across the local media Describe the purpose of Physical layer signaling and encoding as they are used in networks Identify the basic characteristics of copper, fiber and wireless network media Describe common uses of copper, fiber and wireless network media

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  • Đợc phát triển bởi tổ chức tiêu chuẩn thế giới ISO (International Standard Organization) Gồm có 7 tầng: Tầng vật lý (Physical layer) . Tầng liên kết dữ liệu (Data link layer) Tầng mạng (Network layer) . Tầng vận chuyển (Transport layer) . Tầng giao dịch (Session layer) . Tầng trình bỡy (Presentation) . Tầng ứng dụng (Application layer) .

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  • Giải thích vai trò của tầng vận chuyển giao thức và dịch vụ trong việc hỗ trợ thông qua các mạng dữ liệu Phân tích các ứng dụng và hoạt động của cơ chế TCP hỗ trợ Phân tích độ tin cậy ứng dụng và hoạt động của cơ chế TCP hỗ trợ reassembly và quản lý mất dữ liệu.

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  • Communication Architecture Strategy for connecting host computers and other communicating equipment. Defines necessary elements for data communication between devices. A communication architecture, therefore, defines a standard for the communicating hosts. A programmer formats data in a manner defined by the communication architecture and passes it on to the communication software. Separating communication functions adds flexibility, for example, we do not need to modify the entire host software to include more communication devices....

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  • Data can be corrupted during transmission. For reliable communication, error must be detected and corrected are implemented either at the data link layer or the transport layer of the OSI model.Error detection uses the concept of redundancy, which means adding extra bits for detecting errors at the destination

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  • Chapter 6 - Network layer protocols. Chapter summary: Network layer protocols are responsible for end-to-end communications across the network; IP is a connectionless protocol that encapsulates transport layer data into datagrams; IPX is a proprietary standard that performs routing, addressing, and protocol identification; NetBIOS Extended User Interface (NetBEUI) is used by small Windows networks for LAN networking; AppleTalk provides basic networking to small networks.

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  • Chapter 7 - Transport layer protocols. Chapter 7 provides knowledge of TCP, UDP, SPX, and NCP. This chapter includes contents: Connection-oriented protocol; provides packet acknowledgment and flow control, much like TCP; used for NetWare file sharing traffic, among many other functions

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  • Tổng hợp kiến thức - Sự phân tầng và mô hình OSI - Tầng ứng dụng (Application layer)- Tầng giao vận (Transport layer) - Tầng mạng (Network layer)

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  • Giao thức IPsec được làm việc tại tầng Network Layer – layer 3 của mô hình OSI. Các giao thức bảo mật trên Internet khác như SSL, TLS và SSH, được thực hiện từ tầng transport layer trở lên (Từ tầng 4 tới tầng 7 mô hình OSI). Điều này tạo ra tính mềm dẻo cho IPsec, giao thức này có thể hoạt động từ tầng 4 với TCP, UDP, hầu hết các giao thức sử dụng tại tầng này. IPsec có một tính năng cao cấp hơn SSL và các phương thức khác hoạt động tại các tầng trên...

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  • TCP/IP and the DoD Model DoD模型被认为是 OSI 参考模型的浓缩品,分为4 层,从上到下是: 1.Process/Application layer 2.Host-to-Host layer 3.Internet layer 4.Network Access layer 其中,如果在功能上和 OSI 参考模型互相对应的话,那么: 1.DoD模型的 Process/Application 层对应 OSI 参考模型的最高 3 层 2.DoD模型的 Host-to-Host 层对应 OSI 参考模型的 Transport 层 3.DoD模型的 Internet 层对应 OSI 参考模型的 Network 层 4.DoD模型的 Network Access层对应OSI 参考模型的最底 2层 ...

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  • Chapter 8 - TCP/IP fundamentals. Chapter summary: The TCP/IP protocols were developed to support systems that use any computing platform or operating system; the TCP/IP protocol stack consists of four layers: link, internet, transport, and application; IP uses the ARP protocol to resolve IP addresses into the hardware addresses needed for data-link layer protocol communications;...and other contents.

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  • CÂU 1: Lớp nào (Layer) trong mô hình OSI chịu trách nhiệm mã hoá (encryption) dữ liệu? A) Application B) Presentation C) Session D) Transport CÂU 2: Hãy chọn các bước hợp lý được thực hiện trong quá trình đóng gói dữ liệu (encapsulation)? A) Datasegmentspacketsframesbits B) Datapacketssegmentsframesbits C) Dataframessegmentspacketsbits D) Datasegmentsframespacketsbits

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  • KIỂM TRA MÔN HỌC MẠNG MÁY TÍNH NÂNG CAO (THỜI GIAN 60 PHÚT) - ĐỀ SỐ 1 CÂU 1: Lớp nào (Layer) trong mô hình OSI chịu trách nhiệm mã hoá (encryption) dữ liệu? A) Application B) Presentation C) Session D) Transport

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