COMMUNICATION AND COMPUTER NETWORK 4.1 INTRODUCTION Today computer is available in many offices and homes and therefore there is a need to share data and programs among various computers with the advancement of data communication facilities. The communication between computers has increased and it thus it has extended the power of computer beyond the computer room. Now a user sitting at one place can communicate computers of any remote sites through communication channel. The aim of this chapter
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on independent technologies. At a physical layer WAN technologies today continue to be based largely on legacy TDM systems that were built initially to support voice‚ video and early data communications in a reliable fashion. WAN connectivity over distance often requires the use of regenerators and meet points between multiple Telco suppliers that may span the globe. Without strict adherence to standards‚ these connections would not function. WAN technologies depend on highly complex and expensive
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The Western Market‚ without south block‚ is an oldest market building in Hong Kong. Built in September 1844 ‚ it was located at 323 Des Voeux Road‚ Sheung Wan. Let’s introduce some historical background about the western market After building the North block‚ the South Block of the Western Market was built in 1858. Sheung Wan residents buy fresh meat like pork‚ fish and chicken in the North Block. Then‚ the fruit and vegetable were sold in South Block. It was initially a very shabby market
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CHAPTER ONE 1.0 SIWES INTRODUCTION The Students Industrial Work Experience Scheme (SIWES) is one of the Federal Government policies established under decree No 47 of 1971 of industrial training fund. It’s also a skill-acquisition programme designed for the tertiary institutions as a complementary programme to the theoretical education and laboratory and workshop practices engaged in by students in tertiary institutions which‚ by industrial standards‚ are inadequate or insufficient to serve the
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CISCO4 CHAPTER 1 WAN is a data communications network that operates beyond the geographic scope of a LAN. WAN allows the transmission of data across greater geographic distances. 3 Major characteristics of WANs • Generally connect devices that are separated by a broader geographical area than can be served by a LAN. • Use the services of carriers‚ such as telephone companies‚ cable companies‚ satellite systems‚ and network providers. • Use serial connections of
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the research of this network based assignment I have equally focus upon my personal development and look for to become accustomed the worldwide assessment of performance more especially to the personal development in networking. It is based mainly on WAN based networking for Nokia Incorporation The primary four part scores seek to gauge Personal grooming as a professional figure when I was capturing data‚ the aptitude to create a living in a dynamic-based company like Nokia. Aim of Project To
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system‚ which facilitates data transfer only when needed. Global Finance‚ Inc. has employed Integrated Services Digital Network (ISDN)‚ which only transfer data when initiated (Acharya‚ Lasse‚ Thomas & Matthew‚ 2011). Apart from Wide Area Network (WAN) and Local Area Network (LAN) connections‚ Global Finance‚ Inc. has utilized other forms of connections such as different internet ISPs‚ private networks and telephone connections. The design has also incorporated Virtual Private Network (VPN) for in
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upgrades‚ patches or antivirus. LAN domain: network has not secured with appropriate access controls‚ hubs must be upgraded with switches. And have limited access to switches or network controls. LAN-WAN Domain: if users are allowed to visit malicious websites they can accidentally download software WAN Domain: Dos attacks and DDos attacks uploads done to the network. Remote access Domain: infected devices getting remotely connected to the network. System/Application Domain: applications infected
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uses a single pair of wires on the local loop at each end of the call 2. Which of the following are services that telcos have offered as WAN services over the years? A. Switched analog circuits B. Dedicated digital circuits 3. This chapter claims that IP routers work well as devices that connect to many different types of interfaces‚ including LANs and WANs. Which of the following answers list the reasons why routers do well in this role? A. Routers have much faster CPUs and can do the hard work
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describes the different types of networks. It states "nearly every type of design is referred to as an ¬area network". The main networks discussed are‚ LAN and WANs. According to the article‚ these were the original categories of area networks. LAN‚ which stands for Local Area Network‚ connects devices over a relatively short distance via a network. WAN‚ which stands for Wide Area Network‚ spans over a large physical distance; hence the word "wide". An example of a LAN can be found within a school‚ office
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