INTRODUCTION In today’s modern world computer networks are the basic source of information exchange for all types of businesses. Different technologies are used within the context of networking depending on the requirements of an organization. Ethernet is off course the best technology for the “local area network” (LAN)‚ but when the organization spread their business to much longer distances (cities) then WAN technologies need to be deployed to keep the business running. The selection of an appropriate
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Tutorial Week 7 - Class and Entity-Relationship Diagrams 1 Class Diagrams and Entity Relationship Diagrams (ERD) Class diagrams and ERDs both model the structure of a system. Class diagrams represent the dynamic aspects of a system: both the structural and behavioural features. ERDs‚ depicting only structural features provide a static view of the system. 2 Class Diagrams 2.1 Elements of a class diagram: 2.1.1 class A class is a general concept (represented as a square box). A class defines
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350CT Jacob Woodfield SID: 3098774 350CT Coursework Part A: Secure Network Design Introduction Dear XYZ Ltd.‚ My name is Jacob Woodfield and I am writing to you on behalf of Coventry Security Solutions‚ with whom you recently made contact with to request a security audit of your computer systems. Firstly‚ I would like to congratulate you on a very wise choice in deciding to have a security audit take place of your company. Last year 87% of small businesses had a security breach
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Use case diagram A use case diagram at its simplest is a representation of a user’s interaction with the system that shows the relationship between the user and the different use cases in which the user is involved. A use case diagram can identify the different types of users of a system. The different use cases and will often be accompanied by other types of diagrams as well. Figure 5.2: Use case Diagram 5.3 Use Case Analysis 5.3.1 Activity Diagram The following activity diagram represents
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Bus Topology Bus networks (not to be confused with the system bus of a computer) use a common backbone to connect all devices. A single cable‚ the backbone functions as a shared communication medium that devices attach or tap into with an interface connector. A device wanting to communicate with another device on the network sends a broadcast message onto the wire that all other devices see‚ but only the intended recipient actually accepts and processes the message. Ethernet bus topologies are
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G. NARAYANAMMA INSTITUTE OF TECHNOLOGY & SCIENCE (For Women) DEPARTMENT OF IT Principles of Programming Language –Operator precedence rules? –Operator associativity rules? –Order of operand evaluation? –Operand evaluation side effects? –Operator overloading? –Type mixing in expressions? Arithmetic Expressions: Operators A unary operator has one operand A binary operator has two operands A ternary operator has three operands Arithmetic Expressions: Operator Precedence Rules The operator precedence
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Network Expansion The fundamental characteristics and components of the a network of communications is well put together and is suited to their needs to support three stores. The Kudler network is small and only automated at the store level. In analyzing the current network setup‚ a determination will be made on a new network design. This will better automate the network communications between all physical locations of Kudler Fine Foods. Kathy Kudler’s business is still growing with a
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Introduction Network architecture is a combination of topology and protocols. In this paper‚ I will discuss topology‚ which is the defined as the shape of a network or how a network is laid out. Topology also consists of how the different components or nodes of a network are connected and how they communicate with each other. Topologies are either logical or physical. In addition‚ in the sections of this paper‚ I will compare and contrast some different conventional architecture and what types of
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FACULTY OF MEDIA‚ INFORMATION & COMMUNICATION TECHNOLOGY HIGHER CERTIFICATE IN INFORMATION TECHNOLOGY NETWORK ENGINEERING 511 1ST SEMESTER ASSIGNMENT Name & Surname: ____________________________________________ ICAS No: _________________ Qualification: ______________________ Semester: _____ Module Name: __________________________ Date Submitted: ___________ ASSESSMENT CRITERIA MARK ALLOCATION EXAMINER MARKS MODERATOR MARKS QUESTION 1 INTRODUCTION Outlines the subject
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switched telephone network (PSTN) and video broadcasting applications. However‚ with daily technology advancements made in society and the requirement for global data connectivity‚ satellites are increasingly being used to provide data communication links at all data rates ranging from 64 Kbps to 155 Mbps (Buchsbaum). Wireless technology allows data to be sent out into space to a satellite and back to earth to provide connectivity among many different network clients. The network can be designed to
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