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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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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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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Deric Law CGS00479903 1. Improving Network Topology Draw the topology of the network that you are currently using. Be sure to include addressing structures‚ network architecture‚ and include devices such as core switches‚ workgroup switches‚ firewalls‚ routers‚ and other network devices. Analyze the security of the topology and then draw a proposed new topology. Be sure to include security detection systems as well as security zones. Kazakhstan International School had implemented their network infrastructure since
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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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25 Network Theorems UNIT 2 NETWORK THEOREMS Structure 2.1 Introduction Objectives 2.2 Networks 2.2.1 Sign Convention 2.2.2 Active and Passive Elements 2.2.3 Unilateral/Bilateral Elements 2.2.4 Lumped and Distributed Networks 2.2.5 Linear and Non-Linear Elements 2.3 Superposition Theorem 2.3.1 Statement 2.3.2 Explanation of the Theorem 2.4 Thevenin’s Theorem 2.5 Norton’s Theorem 2.5.1 Statement 2.5.2 Explanation of the Theorem 2.6 Reciprocity Theorem 2.6.1 Statement and Explanation
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Network Topologies Network topologies are an important part of the network. Without the proper topology‚ the network may not meet the needs of the organization. The layout of a network is referred to as the topology. How nodes in a network are connected to each other and communicate is determined by the topology. There are three basic topologies with several typical variations‚ or combinations. A description of four topologies follows. Mesh Topology Mesh topology is the first topology discussed
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single area. I also learned how to function a fully functional network in which each router has connectivity to all other networks. I learned how to configure OSPF‚ determine IP routing status by reviewing the IP route table‚ migrate from IGRP to OSPF routing‚ and how to verify network connectivity using ping and verify OSPF neighbor adjacencies. I will benefit in my academic and professional career by furthering my knowledge in the network world and giving me a stable and future job. Copy and Paste
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Our topic is that social networks encourage people to have good “interpersonal skills”. According to the research‚ the most popular method of communication among teens is social network. This format is an opportunity for teenagers to practice and develop social skills. Firstly‚ social network provides a virtual place to spend time and share thoughts and objects with personal meaning‚ such as pictures and stories‚ and remain closely connected with friends regardless of geographic distance. For example
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