...access most files, which are generally stored on the server. The server will determine which users can access the files on the network. Peer-to-peer networks should be installed in homes or in very small businesses where employees interact regularly. They are inexpensive to set up (comparatively speaking); however, they offer almost no security. On the other hand, client/server networks can become as big as you need them to be. Some support millions of users and offer elaborate security measures. As you can imagine, client/server networks can become very expensive. 2. The main advantages of using virtual machines are Multiple OS environments can exist simultaneously on the same machine, isolated from each other; Virtual machine can offer an instruction set architecture that differs from real computer’s; Easy maintenance, application provisioning, availability and convenient recovery. The disadvantages of using virtual machines are When multiple virtual machines are simultaneously running on a host computer, each virtual machine may introduce an unstable performance, which depends on the workload on the system by other running virtual machines; Virtual machine is not that efficient as a real one when accessing the hardware. 3. The three platforms for cloud computing are IAAS,PAAS AND SAAS. SaaS applications are designed for end-users, delivered over the web. PaaS is the set of tools and services designed to make coding...
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...Components and Infrastructures of Infornation Systems Ronald Minnieweather Walden University Components and Infrastructures of Information Systems Information systems are a collection of hardware and software that control the flow of data. Information systems are useful because they enable organizations to collect and process data faster, create reports in real time, and help improve decision making. Major components of information systems There are five major components that needs to be in place in order for information systems to operate properly. The first component is hardware which is basically the physical aspects of computer parts such as monitors, motherboards, keyboards, mouse, and speakers. Software is the second component, which is the instructions for computers (5 key components of an information system?, 2014). Another major component is data, which is a collection of facts and values. The fourth component is procedures which are strictly the guidelines that must be followed. The last major components of information systems are the people needed to monitor the systems (5 key components of an information system?, 2014). Relation between business architecture, IT architecture, and information system Business architecture is “graphical representation of a business model, showing the networks, through which authority, information, and work flows is a firm” (Business Architecture, 2014). IT architecture is the process of developing organized...
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...PFCH DC Unification Project UNIX and Linux Advantages UNIX has been the cornerstone for infrastructure for the past decade with popular flavors such as Solaris (Craig, 2012). UNIX is a proprietary brand typically run in large organizational infrastructure. However, many of the UNIX variants are open source that allow users to customize their distribution as they see fit and making copies to install in an unlimited number of machines. UNIX offers a highly stable operating system (OS) that is ideal for full multitasking capabilities while protecting memory to prevent interference with other users. The stability provides greater uptime for increased productivity and less downtime for crash recovery and troubleshooting (Montpelier Open Source, n.d.). UNIX has been the baseline for Internet services and growth where machines on network can operate as clients and servers. Linux is a variant of UNIX and has established itself in the desktop, workstation, and increasingly in the server environments. A key benefit for Linux is the scope of freedom of distributions (distros) that provide many applications, freeware, and add-ons (Stanford University, 2004). Linux is extremely portability to a wide range of new and old machines. The majority of Linux variants are available free or at an economical price compared to Microsoft Windows. Linux is a very secure operating system and although it still can be prone to attacks, it inherently is more secure than Windows. Another huge benefit...
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...Running Head: Virtualization How will virtualization change the way government agencies do business in the future? Virtualization Abstract: Server and application virtualization is a hot topic among many government information technology program managers. Today’s government agencies are focusing on reducing expenses while improving the capabilities that information technology provides its customers. This is a difficult task to accomplish with shrinking budgets. A key technology that can help reduce costs in multiple ways is virtualization. Virtualization is the creation of a virtual (rather than actual) version of something, such as an operating system, a server, a storage device or network resources. There are many advantages and disadvantages associated with virtualization. Each government agency that is considering virtualization needs to investigate both aspects and make the informed decision according to their business needs and their customers. Depending on the environment that some agencies operate in, virtualization may not be a logical or realistic choice for many of its information technology needs due to security policies that may be in effect. This is especially true within the intelligence community (IC) and Department of Defense (DoD) where they are required to keep different security classifications of data physically separated. Even though system security classification and policy effect government IT environments, the emergence...
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...resources and keep other nodes from accessing certain information. 2) The main advantages is that you don't have to buy two computers decreasing operating cost. You can run other programs in a VM that may not necessarily be in the same OS as the host machine. Some VM solutions allow you to save machine states that will allow you to revert back to a previous state should an error occur. Generally VMs are somewhat isolated from the host machine in the case of infection by malware, the host will not be affected. The main disadvantages are that If the host is down, the VM will be inaccessible. Increased memory and processor usage as part of overhead introduced by the VM. With the statement of the VM being "isolated", it also depends on how you configure your machine. If your VM has stuff like shared clipboard/file folders or if there's a feature that allows hardware pass-through available to a select amount of hardware it may still expose your host machine to the same threats as if you will with a VM. 3) Cloud computing services include Software as a Service (SaaS), when users access applications through the Internet, often with a browser; Infrastructure as a Service (IaaS), when networking, routing, storage, and load balancing occur within the cloud; and Platform as a Service (PaaS), where on-demand computing and development platforms are virtualized for the user. 4) Server virtualization is one aspect of IT solutions that has...
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...05/08/13, noon-2:00 pm Where: DH003 Format: all multiple choice/True False What to study: 1. Week 2 database a. Some of the important terms i. Primary key ii. Foreign key iii. Composite key iv. Entity & Entity integrity v. Referential integrity vi. Attributes vii. Data redundancy viii. File ix. Relation x. Meta data xi. Normalization 2. Week 7 (Hardware and Software) a. b. c. Grid computing (definitions) Cloud computing Virtualization i. PC virtualization ii. Desktop virtualization iii. Server virtualization d. Other terms i. RAM ii. CPU iii. Memory 1. Volatile memory 2. Nonvolatile memory a. 3. Week 11 Enterprise information systems focus on data warehouse Important terms and concepts i. Definitions and purposes of data warehouse ii. Definitions of data mart iii. Data ware data type iv. Metadata 4. Week 9 Data Communication a. Types of networks i. Pan/Lan/Can/Wan/Man ii. Bluetooth, WiFi, WiMax iii. Terms/concepts 1. Packet switching 2. 3. 4. 5. 6. 7. 8. 9. a. b. Internet protocol TCP/IP VOIP (definition and advantages/disadvantages) VPN (definition) Hotspots Access points Tunnel 5. Week 13 Business Intelligence Definitions and architecture of BI Analytical tools i. definitions ii. OLAP 1. Drill-down 2. Pivot tables & Pivoting 3. Slicing 4. Dicing iii. Data Mining 1. Definitions 2. Supervised data mining 3. Unsupervised datamining iv. Decision support systems 1. Decision types (unstructured/ structured/ semi-structured) 2. Comparison of DSS/MIS/TPS/EIS(executive...
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...WEAKNESSES 6 SOLUTION 6 HARDWARE POLICY WEAKNESSES 6 SOLUTION 7 REFERENCES: 8 INTRODUCTION A company that deals with making web site and web business solutions is known as Quality Web Design (QWD). The company provides its customers to provide an opportunity so that they can spread their business through the internet. The other business solutions accompanied are accounting, payroll marketing, also parts of the business process and for which it assets are employed. ABSTRACT QWD provides business solutions via Internet to its customers. The circuit used by the company may prove various flaws to security and the hardware and software used have various limitations as Microsoft share point which have limitations in supporting virtualization, upgrade whereas the web server provided by IBM provides various functionalities over the Microsoft web server. The company has a very good hardware, software, network system, the assets used by the company provide the support to the business process but there are many limitations of the hardware, software, assets and the network design. They provide the support to the companies by providing web solutions so that they can spread their business through internet. The company processes also include accounting, payroll marketing. COMPANY BACKGROUND QWD deals with making websites and web business solutions. The company provides its customers an opportunity so that they can spread their business through the internet. The business solutions...
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...purchases and absorbs the operations of another, the acquired (Gamble & Thompson, 2011, p. 119). Acquisitions are complex and risky – it can affect shareholders, yes it is a powerful tool for accelerating growth. Companies have been successful with merger and acquisitions. I believe it is important to understand how an acquisition benefits the buying company. There are several types of acquisitions, there is Asset acquisition where a buyout strategy in which key assets of the target company are purchased, rather than its shares. A stock purchase involves the purchase of the selling of the company’s stock only. There are advantages of asset vs. disadvantages of asset purchases. An advantage – is an asset acquisition the buyer is able to specify the liabilities it is willing to assume, while leaving other liabilities behind. A disadvantage – it is necessary for the selling of the companies assets to be retitled in the name of the buyer. The first industry I’d like to talk about is the technology of cloud based business data service market. Salesforce.com completed the acquisition of Jigsaw, it was a successful in acquiring the real-time business data. Jigsaw was the privately held leader in crowd- source data service based in San Mateo, California. In acquiring Jigsaw, salesforce.com makes it strategic entry in to the $3 billion cloud based, business contact service market (salesforce.com, 2010). Combining cloud-based data services with business...
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...gains an advantage over the actual and potential rivals” (First Mover Advantage, 2012). The chart below gives advantages and disadvantages for being the first mover to being the late mover. Advantages of 1st Mover: By being first to enter the market, the business gains an advantage over its actual and potential rivals* Can capture market shares easily without worrying about rivals capturing the same customers The first mover will have established familiar products, brand loyalty, and the best retail outlets By beating rivals into the market, the first-mover can consolidate its position and compete more effectively continuing to expand Advantages of Late Mover: Have strong resources and capabilities could overtake the first mover. Free ride on a pioneering firms investments in a number of areas. By the time the late mover enters the market, the technological and market uncertainty has been resolved giving them an advantage. Late movers have the advantage of seeing what methods work after reviewing the 1st movers methods Disadvantages of 1st Mover: Can be less profitable than late movers because of high costs that overwhelm the sales gains Higher premiums accrues to pioneers, which is directly attributable to the timing of entry (entry costs) High advertising cost and entrenched in their original ways of doing things Followers learning from 1st movers mistakes giving them advantages over more efficient processes and technologies. Disadvantages of Late...
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...LYT2-Task 3 Assess and Adopt a Virtualization Adoption Plan What is Virtualization? Virtualization, in computing, refers to the act of creating a virtual (rather than actual) version of something, including but not limited to a virtual computer hardware, platform, operating system (OS), storage device or computer network resources. Hardware virtualization or platform virtualization refers to the creation of a virtual machine that acts like a real computer with an operating system. Software executed on these virtual machines is separated from the underlying hardware resources. For example, a computer that is running Microsoft Windows can host a virtual machine within it and can load Linux (Ubuntu) that looks like a computer with the the operating system Ubuntu Linux. i.e. both operating systems Microsoft Windows and Linux can be loaded in the same machine with Ubuntu Linux is in the virtual machine. Ubuntu-based software can be run on the virtual machine. Server Virtualization: This refers to creating a server in the cloud for example Amazon Web Services where virtual servers can be created and can be accesses as a service. 1. Description about how the benefits of virtualization would impact the city of Seabreeze. The city has a Physical server environment which consists of 72 servers, the storage environment of DAS (Direct Attach Storage) and 350 desktop or end computers. This setup can be virtualized by purchasing space for storage, server and end computing. This...
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...Section 1: Networking Concepts CompTIA Network+ N10-005: 1.1a – The OSI Model Through the years, the OSI model has been the fundamental model for networking. In this video, you’ll get an overview of the OSI model and a detailed breakdown of each of each OSI layer. CompTIA Network+ N10-005: 1.1b – The TCP/IP Model The OSI model isn’t the only model in town. In this video, you’ll learn about the TCP/IP model and how real-world applications are associated with each layer. CompTIA Network+ N10-005: 1.2 – The OSI Model in the Real World The OSI model is a useful reference, but how does it really work in the real world? In this video, we’ll investigate how the OSI model maps into an encrypted email conversation with Google Mail. CompTIA Network+ N10-005: 1.3a – Binary Math Calculating in binary is an important skill for any network professional. In this video, you’ll learn the fundamentals for converting between decimal and binary numbers. CompTIA Network+ N10-005: 1.3b – IP Classes The history of TCP/IP includes numerous changes in network technologies and subnetting. In this video, you’ll learn how the IP class-based numbering system was used in the past and how it’s used today. CompTIA Network+ N10-005: 1.3c – Classless Inter-Domain Routing CIDR-block addressing has added new flexibility to IP subnetting. In this video, you’ll learn about classless inter-domain routing and the notation used to designate a CIDR-block address. CompTIA Network+ N10-005: 1...
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...Abstract…………………………………………………………………..3 Introduction…………………………………………………………..3 Overview………………………………………………………………3 Universities Implement Cloud Computing……………..............4 Software as a Service (SaaS)……………………………………...6 Platform as a Service (PaaS)………………………………………6 IBM cloud computing……………………………………………….7 Advantages…………………………………………………….8 Disadvantage: Unused resources……………………………………..9 Disadvantage: Interoperability issues………………………………..9 Challenges of cloud computing…………………………………………………………10 Security concerns………………………………………………………..10.1 Disaster recovery………………………………………………………..10.2 Data protection……………………………………………………………10.3 Examples and Experiences OF Universities and IBM …………11 Why Cloud Computing is Important for Business……………..11 Conclusion……………………………………………………………..13 References……………………………………………………………..14 Abstract Cloud computing is a significant alternative in today’s educational perspective. The technology gives the students and teachers the opportunity to quickly access various application platforms and resources through the web pages on-demand. Unfortunately, not all educational institutions often have an ability to take full advantages of the newest information technology. The paper analyzes possibilities of the cloud computing technology that can help educational institutions to support the process of teaching and learning. Introduction Cloud computing is the use of computing resources (hardware and software) that are delivered as...
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...Interface | Workbench, Navicat, Sequel Pro, HeidiSQL, phpMyAdmin | Control Center, DOS-like interface, Eclipse-based database developers workbench | Multilingual user interface | Stored Procedures | Single ResultOne Result SetTwo Result Set | Single ResultOne Result SetTwo Result Set | Single ResultOne Result SetTwo Result Set | Output parameters, Return codes, A global cursor | Latest Stable Version and Year of Release | 11g Release 2 (11.2.0.4) 2014 | MySQL 5.6.22 2014 | DB2 10 2014 | SQL 2008 R2 SP2 2014 | Advantages | Ability to group several transactions into the same batch. The Real Application Cluster allows multiple servers to work on the same database. | Free open source relation database, active development team. Database-driven application for the internet | Low Cost Platform Per User, Rapid application and warehouse deployment for business growth | Reduce Cost with Virtualization, Simplify Datacenter Management, Improved Datacenter Security | Disadvantages | Cost, difficult to learn and operate | Dose not support a very large database. Does not support ROLE, COMMIT. | Table of the relationship is not well adapted to the new demand. | Limited to executing each transaction individually in a sequential order. | After all the research there is a number of databased programs that have a range of options and requirements. The ones listed above in the table are some of the most common and best on the market. After awing the pros and cons I feel...
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...From Physical Machines to Virtual Machines Anthony V. Lear ITT Technical Institute From Physical Machines to Virtual Machines For years businesses have depended on multiple pieces of hardware, linked together and deployed with software, to connect users to the resources they need. As technology has advanced with today’s virtual software programs, we can now run another “virtual computer” on a physical client machine. With all the technology advances some people believe that virtual machines are equal to physical machines. First, let’s get some background of the physical machine (server/client) and what it has to offer a network. There are many options when it comes to the CPU, Motherboard, Memory (RAM), etc. These options include hard drives (storage), video cards, audio cards, and central processing units (CPU’s). Even though “it’s all just computation” (Nikhil, 2011, p.38) the combination of hardware can make or break the performance of a physical machine. IT professionals have to consider the needs of a network when choosing a physical machine. Depending on how it will be utilized on the network this will then elaborate on the requirements of the machine to provide the capabilities needed to perform its role on the network. For instance, if you require a file server to allocate resources such as software, programs, employee documents, etc. you will have to consider the servers hardware needs to meet this demand. The most important considerations for a file server...
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...To: Mari Buche, Colleague From: Kristen Therrian, Colleague Date: October 20, 2014 Subject: Cloud Computing The world of cloud computing has recently become of interest in my research. I would like to hear from you on whether cloud computing is something I should pursue after discussing what cloud computing is, what is the cloud computing system architecture like, what are its advantages, and disadvantages. The article reviewed shows that cloud computing is a network of computers that handles the brunt work of running applications. Companies need only to install one application that lets employees log onto a web-based service, such as the internet which hosts all the programs that users would need. The interface software which is like a browser, is the only thing that is needed. The network of the cloud will take care of everything else. The cloud architecture has a back end and a front end. The back end allows users to connect to the internet or network. It is also where numerous servers, computers, and storage systems are located that build the “cloud” of the computing system (Strickland, 1998-2014). The front end is what the user can view and it is where the client’s computer and the application that is the means of entry to the cloud system is located. It is important to note that each application acquires its own server. The central server manages the system where it audits traffic and demands of clients to guarantee everything runs properly. The central server...
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