Network security concepts Network security starts with authenticating‚ commonly with a username and a password. Since this requires just one detail authenticating the user name —i.e. the password— this is sometimes termed one-factor authentication. With two-factor authentication‚ something the user ’has’ is also used (e.g. a security token or ’dongle’‚ an ATM card‚ or a mobile phone); and with three-factor authentication‚ something the user ’is’ is also used (e.g. a fingerprint or retinal scan)
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Carrier Sense Multiple Access with Collision Avoidance. However‚ simple CSMA is susceptible to the hidden node problem‚ especially in so called ad hoc networks where a node may communicate directly with every other node in range or using intermediate nodes as relays otherwise. Hidden nodes cause costly packet collisions and thus significantly affect network performance. In order to combat the hidden node problem‚ a mechanism known as Request to Send/Clear to Send (RTS/CTS) handshake is often used. RTS/CTS
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Wireless Network A wireless network‚ as its name would suggest‚ is a network of computers and computer peripherals that are connected to each other without wires. This enables ease of communication‚ especially for mobile computing platforms. Further‚ there are a number of other advantages to a wireless network that make them increasingly common in both the workplace and at home. Nearly all wireless networks in the world work on a standard set up by the Institute of Electrical and Electronics
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The company GMA Network‚ Inc. is a Filipino media conglomerate based in Diliman‚ Quezon City‚ Philippines. It is primary involved in radio and television broadcasting‚ with subsidiaries dealing in various media related businesses. The majority of its profits are derived from publicity and marketing incomes associated to television distribution. The company has 47 VHF and 13 UHF television stations‚ including its flagship station in Metropolitan Manila and originating stations in the provinces that
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TYPES OF DATA FLOW DIAGRAM: LOGICAL DFD PHYSICAL DFD Data Flow Diagrams (DFDs) are categorized as either logical or physical. A logical DFD focuses on the business and how the business operates. It describes the business events that take place and the data required and produced by each event. On the other hand‚ a physical DFD shows how the system will be implemented. Design Feature Logical Physical What the model depicts How the business operates How the system will be implemented
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Network Hardening Unit 8 Assignment 1 It is very important to go through the process of hardening. Hardening is where you change the hardware and software configurations to make computers and devices as secure as possible. I picked the network layout 1-the workgroup . First with the workstations and laptops you need to shut down the unneeded services or programs or even uninstall them. I would also have some good anti-virus software on the workstations. You also need a hardened image for
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The Bamboo Network Explained What is the ‘bamboo network’? The bamboo network refers to the conglomerates propelling Southeast Asian economies which started as small family businesses run by overseas Chinese. The businesses are managed by the family of the founder‚ and are run with strong Confucian values. The combined output of the 55 million overseas Chinese is equal to a good-sized country‚ or close to $600 billion. Chinese expatriate workers are integral to economic success in countries such
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Computer Networks Does anyone really know what networking is? “In the world of computers‚ networking is the practice of linking two or more computing devices together for the purpose of sharing data” (Networking Fundamentals). Now this is a great explanation but does this really help us understand? Networking has grown over many years. Where did networking come from? Lets go back to the beginning and find out how far we have come. Network research can be traced back to around the 1960’s.
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Topologies and Network Technology NTC/361 Monday‚ August 8‚ 2011 Thomas Krawczyk Topologies and network technology In every project‚ it is important to have a goal‚ and that goal should be the foundation on which a project team spring into action. The foundation should involve an infrastructural plan‚ and the usability of the components of the infrastructure. A project plan‚ as in any other plan‚ should outline the premise of the project and answer some basic questions like why
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Network Administrator PROPOSAL The purpose of this research is to provide a detailed insight into the job duties and responsibilities of a network administrator. Early on‚ I developed a strong interest in computers. Therefore‚ in high school‚ I began taking classes to assist me in a computer career. At the time‚ I was not certain as to which aspect I would pursue. However‚ I knew it would be working with computers. Nevertheless‚ it was not until college that I determined that I wanted to
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