...think that social networks must look random too, however like we studied in this class they aren’t, The Network I chose is Facebook, the most popular social media platform with an estimate of 900 million monthly users. Most of you in this room are on Facebook, and for those of us who aren’t, you for a fact know someone on facebook. I chose facebook to write about because I feel like it is almost identical to actual real life social networks. Some of the topics I’m going to write about are the following ‘ 1. Hubs: People in real life and people on facebook cluster into groups which have hubs. The hubs are usually the social butterflies who know everyone, talk to everyone, and introduce their friends to one another. IF you look at your faceook friends you might have like two large clusters of friends…. This brings me to my second main topic. Small world networks 2. Small world Networks: Facebook is an example of a small world network because through these key people we are all connected to each other through only a few steps. Facebook’s “6 degrees of separation” is actually 4.74. When I moved to university It felt like the degrees of separation on face book was only 1. say story Dheeraj and amman. 3. The third thing Im going to try to do is break down facebook into network science basics. For example: All out accounts are nodes If we follow someone, that’s a directed link If we are friends with someone that’s an undirected network The celebrities...
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...ISYS104 Tutorial – week 6 Review Questions 1. What is IT infrastructure and what are its components? Define IT infrastructure from both a technology and a services perspective. • Technical perspective is defined as the shared technology resources that provide the platform for the firm’s specific information system applications. It consists of a set of physical devices and software applications that are required to operate the entire enterprise. • Service perspective is defined as providing the foundation for serving customers, working with vendors, and managing internal firm business processes. In this sense, IT infrastructure focuses on the services provided by all the hardware and software. IT infrastructure is a set of firm-wide services budgeted by management and comprising both human and technical capabilities. List and describe the components of IT infrastructure that firms need to manage. Students may wish to use Figure 5-10 to answer the question. IT infrastructure today is composed of seven major components. • Internet Platforms – Apache, Microsoft IIS, .NET, UNIX, Cisco, Java • Computer Hardware Platforms – Dell, IBM, Sun, HP, Apple, Linux machines • Operating Systems Platforms – Microsoft Windows, UNIX, Linux, Mac OS X • Enterprise Software Applications – (including middleware), SAP, Oracle, PeopleSoft, Microsoft, BEA • Networking/Telecommunications – Microsoft Windows Server, Linux, Novell, Cisco, Lucent...
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...Assignment 3: Evaluate Virtual Work Software Virtual Desktop Infrastructure Jeanette Johnson Lawrence Technological University MIS 7463 – Virtual Work Environments – Spring 2013 Dr. Anne Kohnke, Assistant Professor of IT, College of Management April 13, 2013 Contents Product Description and Application 3 Major Issues 4 Why the Need for VDI? 4 Is VDI for Everyone? 5 Successful Application of VDI 5 What Exactly Does VDI Offer Organizations? 5 Oracle Virtual Desktop Infrastructure Specifications….at a Glance 7 Reviews 8 What Oral Roberts University has to say about VDI 8 Scripps Networks’ Review of VDI 10 What Small Business Computing Reviewer, Joe Moran, Thinks of VDI 10 Summary and Interpretation of Reviews 11 Implementation 12 VDI Project Plan: Start with Using the Proper Apps and Utilize Pilot Program 13 VDI Licensing: Be Wary about Going for the $40 (or less) per Desktop Guarantee 13 Ensure you Tackle VDI Storage Challenge with Network-Attached Storage (NAS) System and Data Deduplication 14 Factors to Consider When Considering Whether or Not to Implement VDI 15 Conclusion 16 VDI offers Better Support 16 VDI Helps Strengthen Security 16 The BYOD Crowd will Be Happier with VDI 17 Product Description and Application Virtual Desktop Infrastructure (VDI) is simply the practice of hosting desktop operating systems (OS) in a virtual...
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...Ministries are running their own small IT infrastructure which service their own organization, this document will provide shared infrastructure between all local UAQ Ministries to connect each other, share their information, transfer files and so on. The proposed infrastructure would explain the connectivity requirements between these ministries, data center connect all local ministries to a single shared communications and computing infrastructure to facilitate effective delivery of government services to citizens, businesses and others. Under the proposal for an e-Government network, the network is configured to reach up to 10 local ministries around the city. Including direct fiber optic connectivity, IPVPN secure connectivity. OBJECTIVE Design of e-Government network will ensure that the network will serve the widest possible diversity of Ministries Departments and Agencies. The network infrastructure solution as proposed will deliver the following: * The eGovernment network infrastructure will be built in Ethernet connectivity.. * The project will provide network switching and routing equipment’s requirements for connecting 10 local ministries. * The project will provide for the interconnection of all the ministries with fiber optic cable, with the core network running at 10Gbps (Gigabits per second) and all ministries enjoying a minimum connectivity speed of a 1Gbps with each other and to the Main Data Centre. * The network will provide a single secure...
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...cliché, but when combined with "computing", the meaning gets bigger and fuzzier. Some analysts and vendors define cloud computing narrowly as an updated version of utility computing: basically virtual servers available over the Internet. Others go very broad, arguing anything you consume outside the firewall is "in the cloud", including conventional outsourcing. Cloud computing comes into focus only when you think about what we always need: a way to increase capacity or add capabilities on the fly without investing in new infrastructure, training new personnel, or licensing new software. Cloud computing encompasses any subscription-based or pay-per-use service that, in real time over the Internet, extends ICT's existing capabilities. Cloud computing is at an early stage, with a motley crew of providers large and small delivering a slew of cloud-based services, from full-blown applications to storage services to spam filtering. Yes, utility-style infrastructure providers are part of the mix, but so are SaaS (software as a service) providers such as Salesforce.com. Today, for the most part, IT must plug into cloud-based services individually, but cloud computing aggregators and integrators are already emerging. ______________________________________Cloud computing - The Concept Cloud computing is Internet ("cloud") based development and use of computer technology ("computing"). It is a style of computing in which dynamically scalable and often virtualized...
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...Chapter 5 IT Infrastructure and Emerging Technologies As information becomes a valuable resource of a digital firm, the infrastructure used to care for it takes on added importance. We’ll examine all of the components that comprise today’s and tomorrow’s IT infrastructure and how best to manage it. 5.1 IT Infrastructure When you mention the phrase “information technology infrastructure,” most people immediately think of just hardware and software. However, there is more to it than just those two. In fact, the most important and often most-ignored component is that of services. Integrating all three components forces a business to think in terms of the value of the whole and not just the parts. Including all three components in any discussion of IT infrastructure truly fits the cliché that the whole is greater than the sum of its parts. Defining IT Infrastructure If you define a firm’s IT infrastructure in terms of technology you limit the discussion to the hardware and software components. By broadening the definition to that of service-based, you are then bringing into the discussion the services generated by the first two components. Also, you are including the persware element that we discussed in Chapter 1. As technology advances the types of hardware and software available, it becomes more critical for the firm to focus on the services that a firm can provide to its customers, suppliers, employees, and business partners. To round out the list of IT infrastructure components...
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...One model of interoperability is a loosely linked network model. It is a model of independent agencies illustrated by the concepts of cloud computing and smart phone apps. A second model is a formal network of small, independent organizations illustrated by interoperability in the travel industry. A third model is a large organizational model illustrated by interoperability in the banking system (Schoech, 2010). Loosely Linked Network Model: Cloud Computing and Smart Phone Apps One interoperability model can be illustrated by software as a service, and smart phone apps. Software is more of a service than a product in this model. Agencies only use applications and tools that are needed to achieve their goals. This method lowers overall infrastructure costs because system wide activities are minimized. The model is highly scalable and modular with connectivity and growth as needed. It also allows maximum agility and flexibility on the part of agencies. This models impact on practice is small and anticipated because agencies would buy into larger infrastructure when needed and ready. In the loosely linked network model, the IGHI will have difficulty functioning since it lacks components and has no central infrastructure entities (Schoech, 2010). Travel Industry Model The travel industry model is more formal. Central guidelines and standards have been established for entities to become part of the global structure. Each agency would screen clients in or out of its particular...
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...Abstract There are certain benefits in having a well set up and thought out infrastructure within a company. However when setting up an infrastructure or changing an existing infrastructure there are a number of things a company should conceder in order to end up with the infrastructure that best works for them and their company. Business infrastructures usually consist of booth LAN and WAN area networks. Businesses will use a LAN to connect network devices over a short distance, such as an office building or school. Occasionally one building will contain a few small LANs, and sometimes a LAN will span a group of nearby buildings. LANs are usually owned, controlled, and managed by a single person or organization. It’s also much easier and more efficient to manage multiple computers from a single platform than it is to manage each of them individually (Kichu, NA). Servers designed to support a LAN network are usually optimized for better performance and can increase application and data availability, ultimately leading to more productive employees. Also data backups done over a LAN network can be centrally managed and scheduled, which makes them more reliable, and also allows them to be saved to an off-site location (Mitchell, 2012). LAN’s also help reduced operating costs by allowing employees to share office equipment, like printers, faxes, and storage devices. Basically, a company can buy just one or two shared printers for the entire office to...
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...Indian Banking – The engine for sustaining India’s growth agenda 5th ICC Banking Summit Kolkata 18 May 2013 Foreword Over the past couple of years, the Indian banking sector has displayed a high level of resilience in the face of high domestic inflation, rupee depreciation and fiscal uncertainty in the US and Europe. In order to stimulate the economy and support growth of the banking sector, the Reserve Bank of India (RBI) adopted several policy measures. © 2013 KPMG, an Indian Registered Partnership and a member firm of the KPMG network of independent member firms affiliated with KPMG International Cooperative (“KPMG International”), a Swiss entity. All rights reserved. Asset quality, capital adequacy, financial inclusion and talent management are some of the key issues facing the Indian banking industry, which despite serving the second largest populated country in the world with a total of 87 banks (including 26 public sector banks, 20 private banks and 41 foreign banks), as per the RBI, reaches out to only about half of the country’s households, scripting a nominal global footprint. The rising consumerism from the emerging ‘middle’ India and the higher purchasing power in rural India on account of rising employment provides opportunities for banks to look beyond the traditional customer segments. However, these segments would require flexible operating models which would ensure responsiveness at the last mile and at the same time be viable for the banks. On...
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...means doing computing work by a large group of computers through a real-time network such as internet to communication with. It also called distributed computing over a network, used to run a program or application on many connected computers at the same time. Today the “cloud” majorly means internet, because internet is a convenient way to accomplish the “real-time” network task; and the cloud itself also means there are many computers – servers somewhere in the internet to do the computing work (run some software and programs) for the end user, the hardware (servers) are not real exist in client end, so they are “virtual” hardware, can be managed even moved in the cloud that end users do not need to worried about ; therefore end users just need to request the service, cloud will allocate the task to one or more servers which is or are in the time suitable to take the task and fulfill it; user do not need to maintain network, server, and complicated other tasks such as security, compatibility, backup……etc. to keep the program or software to run smoothly, so it is much convenient for the end user. From the view point of service, whatever what the software, platforms and infrastructures the cloud possesses, obviously cloud appears to the end uses is just a “service”. Today the major models of cloud computing service are known as “software as a service”, “platform as a service”, and “infrastructure as a service” [1]. * Software-as-a-Service (SaaS): Users run software applications...
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...by before someone alerts the company of a possible security breech. Cost of an electronic exploit can be greater than a million dollars per incident as reported by the FBI. This information is found in the FBI’s (Federal Bureau of Investigation) report of cyber threats in the United States. In order to help counterbalance this, smaller to midsized companies could spend less than $5,000 to harden their systems and operating systems to put a statefull firewall in place. As stated in this paper, these companies often lack the resources, materials and funds to do so. With the FBI report showing reported incidents, there are thousands of incidents that go unreported. Often these incidents are yet to be discovered. With this number of small to mid-size corporations ignoring or slowly implementing security measures, more and more electronic computer crimes are beginning to take place throughout the U.S. With extortion now moving into the digital age, many corporations do not report intrusions to law enforcement in order to avoid negative publicity. Reports of an intrusion could directly have a negative effect on the company’s sales and position in a global competitive market. Approximately 35% of corporations don’t report electronic intrusions to keep their competitors from gaining any type of advantage. Today’s modern bank robber can be a hacker thousands of miles away hidden behind spoofed ip addresses or behind a zombie computer. Reports are also withheld to avoid embarrassment...
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...An ad hoc network is a collection of nodes that communicate with one another without any fixed networking infrastructure. This is viewed as suitable system which can support some specific applications as virtual classrooms, military communications, emergency search and rescue operation, data acquisition in hostile environments communication set up in exhibitions, conference and meetings, in battle field soldiers to co ordinate defense or attack , at airport terminals for workers to share files etc. In ad hoc networks nodes can change position quite frequently. The nodes in the ad hoc network can be laptops, PDA etc. These are often limited in resources such as such as storage capacity, CPU capacity,...
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...ASIA Airline takes off with Comscentre The Business Challenge As Air Asia continue to expand their network of destinations, particularly through their international long-haul brand, Air Asia X, increasing pressure was being placed on their global call centre located in Kuala Lumpur. Additionally, there was increasing demand for a single global data and telephony network which could seamlessly expand with the business into new markets internationally, while remaining centrally managed and keeping overhead costs to a minimum in line with the company’s low cost business model and strategy. “Air Asia operates on a ‘low cost airline’ model globally, which means we need to closely examine every facet of the business to ensure we are operating on as low an overhead cost as possible, in order to keep our prices as low as possible for our passengers” says Air Asia Chief Commercial Officer, Darren Wright. “We found that our global communications network was not only a business system of growing importance to Air Asia, but one of escalating cost as well” he says. What we ideally wanted in place was a single global IP based network which would not only greatly reduce our communications costs, but would deliver us a single, centrally managed infrastructure with full redundancy solutions built in.” The Solution Air Asia initially engaged Comscentre to establish an IP voice and data network between their Australian branch office in Brisbane and their Australian port bases located in Perth...
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...principal technologies and trends that have shaped contemporary telecommunications systems? 1- Telephone networks: they handle voice communication; they were built by telephone companies using voice transmission technologies. 2) Computer network: they were built by computer companies seeking to transmit between computers in different locations. 3) Broadband: connections provided by telephone and cable companies running at million bits per second. 4) Describe the features of a simple network and the network infrastructure for a large company? * Network interface card: is a computer hardware component that connects a computer to a computer network. * Network operating system: is the software that runs on a server and enables the server to manage data, users, groups, security, applications, and other networking functions. * Hubs: devices that connect network components, sending a packet of data to all other connected devices. * Switch: filter and forward data to a specific destination on the network. Network in large companies: * It consists of large number of small local area networks linked to other area networks and to firmware corporate networks. Internet service provider, telephone service and wireless internet service are examples of today’s infrastructure. 3- What are the principal components of telecommunications networks and key networking technologies? 1- Client/server computing: Client/server describes the...
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...others. Dirt Bikes should implement an intranet system and strongly consider the advantages of networks. The Internet has revolutionized various forms of communication and information, and Dirt Bikes would be wise to take advantage of such technologies. To begin, it is important to note that the use of a local area network will be absolutely crucial. A local area network is a computer network that interconnects computers in a limited, or more specifically, local area. It allows for easy lines of communication and makes information much easier to obtain between departments or employees. As time progresses, an intranet is needed; an intranet is a computer network within an organization that uses Internet Protocol technology to share information, operational systems, or computing services within an organization. Sometimes, the term refers only to the organization's internal website, but may be a more extensive part of the organization's information technology infrastructure, and may be composed of multiple local area networks. According to Laudon & Laudon, “As a firm grows, and collects hundreds of small local area networks, these networks can be tied together into a corporate-wide networking infrastructure. The network infrastructure for a large corporation consists of a large number of these small local area networks linked to other local area networks and to firmwide corporate networks. A number of powerful servers support a corporate Web site, a corporate intranet, and perhaps...
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