that each layer needs to have two opposite tasks. The second principle dictates that the corresponding layers should be identical. The section ends with a brief discussion of logical connection between two identical layers in protocol layering. Throughout the book‚ we need to distinguish between logical and physical connections. Chapter 2: Objective (continued) The second section discusses the five layers of the TCP/IP protocol suite. We show how packets in each of the five layers (physical
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many countries to create standards that apply to multiple countries 5. Which of the following are true about the commonly used version of the TCP/IP model as shown in this chapter? The data link layer sits lower in the model than the transport layer. / The physical layer sits just below the data link layer 6. The TCP/IP model refers to standards other than those the IETF defines in RFC’s. Which of these standards groups is typically the source of external LAN standards? IEEE / ANSI 7
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are true about the commonly used version of the TCP/IP model as shown in this chapter? (Choose two answers.) a. The application layer sits immediately above the network layer. b. The data link layer sits lower in the model than the transport layer. c. The physical layer sits just below the data link layer. d. The network layer sits in the middle of the five layers. 6. The TCP/IP model refers to standards other than those the IETF defines in RFCs. Which of these standards
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Compare and contrast switches‚ routers‚ and gateways. Bridges operate at the data link layer. They connect two or more network segments that use the same data link and network protocol. They understand only data link layer protocols and MAC addresses. They may connect the same or different types of cable. Routers operate at the network layer. Routers connect two or more network that use the same or different data link protocols‚ but the same network protocol. They may connect the same or different
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protocols are examples of TCP/IP transport layer protocols? (More than one answer could be correct.) a. Ethernet b. HTTP c. IP d. UDP e. SMTP f. TCP The answers to this question are TCP and UDP. 2. Which of the following protocols are examples of TCP/IP network access layer protocols? a. Ethernet b. HTTP c. IP d. UDP e. SMTP f. TCP g. PPP The answers to this question are Ethernet and PPP. 3. The process of HTTP asking TCP to send some data and make sure that it is received correctly
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today. Application Layer (7) This layer represents the various network applications such as e-mail reader‚ Web browser‚ Hypertext Transfer Protocol (HTTP)‚ File Transfer Protocol (FTP)‚ and Network File System (NFS). ✦ The application layer provides a user interface and processes network data. ✦ The application layer on the sending host produces the network data to be transmitted from the sender host. ✦ The application layer on the receiving host consumes the network data produced and transmitted
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S.P.B.Patel engineering College‚ CE\IT Department Saffrony Institute of Technology‚ Campus $ # $ " 4 ! 3 2 1 ¦ 0 ¤ ¢ ) ¦ ¢ ¤ ¡ § ( © ¨ ’ § ¦ ¦ ¥ & ¤ £ % ¢ ¡ ¡ 1 Which of the OSI layers handles each of the following : -Determine which route through the subnet to use. -Dividing the transmitted bit stream into frames. -Encryption and compression of the information. -Flow control between source and destination node. Classify various transmission media for computer
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chart. A flow chart can be used as a step by step guide. 3.1.3 Based on what you already know about networks‚ what are the different layers you think would be necessary for communication to be mapped to a model? Consider direct connections between host devices and connections that require other routing equipment‚ such as a hub‚ switch‚ or router. 1. Data link 2. Physical 3. Application 4. Network 5. Transport 3.1.4 The granularity of the reference model will often determine the usefulness
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networking models are TCP/IP which had 5 different layers and the OSI model which has 7 layers. They mainly incorporate the same layers and the only difference is that the TCP/IP layer combines layers 5‚ 6 and 7 all into layer 5. Both models are along the same line of information and both explain how a network moves data. 3.2: OSI reference model: The OSI model includes two more layers that the TCP/IP layer already had but is constructed in only layer 5. 7: Application Web browser‚ 6: Presentation
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standards that apply to multiple countries. 5. Which of the following are true about the commonly used version of the TCP/IP model as shown in this chapter? (Choose two answers.) Answer: C. The physical layer sits just below the data link layer. D. The physical layer sits just below the data link layer. 6. The TCP/IP model refers to standards other than those the IETF defines in RFCs. Which of these standards groups is typically the source of external LAN standards? (Choose two answers.) Answer:
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