Spring 2013 Bachelor of Science in Information Technology (BScIT) – Semester 5 BT8902 – E-Commerce – 4 Credits (Book ID: B1186) Assignment Set (60 Marks) Answer all questions 6x10 = 60 1. Explain the different activities carried out on E–Commerce‚ with appropriate examples. The core activities that are carried out on Electronic Commerce are: a) Buying and selling of products b) Shipping of products c) Producing financial statements All the above functions are carried out without
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The Seven Layers of the OSI Model Kevin Ludwig Bryant and Stratton College TECH 140 Khaled Sabha 12.08.2009 There are seven layers in the OSI model. Each layer has a function or purpose that is used to set up a network. The International Organization for Standardization began to develop the OSI framework in 1984. The purpose was to have each layer interact with the layer directly beneath it. The layers are starting from the top: Application‚ Presentation‚ Session‚ Transport‚ Network
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difficult. 3.1.2 Give another example of a model that is used to visualize something that is difficult to observe or perceive. How does the model make it easier to understand? Another way of displaying information for easier understanding is to use a flow 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
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The TCP/IP Model Mr. Randy Vogl Gus Perez 19593003 The TCP/IP network model Exercise 3.3.1 What are the distinct differences between OSI and TCP/IP models? TCP refers to Transmission Control Protocol. OSI refers to Open Systems Interconnection. Model TCP/IP is developed on points toward a model the internet. TCP/IP has 4 layers. OSI has 7 layers. TCP/IP more reliable than OSI OSI has strict boundaries; TCP/IP does not have very strict boundaries. TCP/IP follow a horizontal approach. OSI follows a
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networks. It is commonly known as TCP/IP‚ because of its most important protocols: Transmission Control Protocol(TCP) and Internet Protocol (IP)‚ which were the first networking protocols defined in this standard. It is occasionally known as the DoD model due to the foundational influence of the ARPANET in the 1970s (operated by DARPA‚ an agency of the United States Department of Defense). TCP/IP provides end-to-end connectivity specifying how data should be formatted‚ addressed‚ transmitted‚ routed
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Program: Higher National Diploma in Computing Unit Name: Networking Technology Unit No.: 12 Number of Assignments for this unit 1 Full Name Student ID Intake Turnitin Score % Title Prime Bank Reference 12.2 Assessor Date Issued Date Due Date Submitted IV Date IV IV Signature Grade Unit Grade Awarded D M P R Assessor Comments Note: D-Distinction‚ M-Merit‚ P-Pass‚ R-Refer IV Signature (if sampled) Date IV Comments Assignment Feedback Student
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Roman Katoliko NT1210 CHAPTER 3: Building TCP/IP Networks Lab 3.1: Network Reference Models Ex 3.1.1 What would happen if wireless devices were not governed by the Wi-Fi Alliance and each vendor had its own standards and protocol? What impact would this have on your personal life or business communications? If each vendor had their own standards and protocols‚ we would have a harder time making devices that we use every day to inter-operate. Imagine buying specific BRAND of ROUTER for
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Abstract The Open Systems Interconnect (OSI) model is a standard reference model for the communication between two end users. Seven different layers make up the OSI model: physical‚ data link‚ network‚ transport‚ session‚ presentation‚ and application. This paper will cover the type of security that is associated with each level of the OSI model. Physical Layer The physical layer is where the actual communication occurs between devices. The security of the physical layer pertains to the
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Name: Date: ISSC340 Week 5 Assignment (3% of Grade) APUS/Sanford Lesson 5 Review: Networking Models‚ Traffic and Devices The purpose of this activity is to reinforce what you have learned so far about local area networks technologies. 1. Describe the three modes of communication available on a network. (Minimum word count: 60) Simplex - Data travels in only one direction‚ similar to a public address (PA) system Half-duplex - Data travels in two directions‚ but in only one
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Nt1210 LAB3 3.1: Networking models Review: The two 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
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