Super conductivity is a natural phenomenon in which certain materials such as metals‚ alloys‚ and ceramics‚ can conduct electricity without resistance. These materials are what we call superconductors. In a superconductor‚ once the flow of electrons begins‚ it essentially goes on forever‚ making it an important material to humans. Superconductivity was discovered by a Dutch scientist by the name of Heike Kamerlingh Onnes in 1911. While researching properties of materials at absolute zero
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Sheath 11. With everything else being equal‚ a network using which of the following UTP types will suffer the most cross talk? (A) CAT 3 12. What are two advantages of using twisted-pair cabling over coaxial cabling on a network? (B) Twisted-pair cable is less expensive. (E) Twisted-pair cable is required for modern transmission standards. 14. Which of the following network transmission media offers the highest potential throughput over the longest distance? (C) MMF 16. What
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RS485 Twisted Wire Pair NET Concentrator System Station #1 Another advantage of MODBUS is that it can run over virtually all communication media‚ including twisted pair wires‚ wireless‚ fiber optics‚ Ethernet‚ telephone modems‚ cell phones and microwave. This means that a MODBUS connection can be established in a new or existing plant fairly easily. In fact‚ one growing application for MODBUS is providing digital communications in older plants‚ using existing twisted pair wiring. In this
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My project report is on ‘how network architecture has changed over the decade’. In this report‚ I’d be talking about different network architecture that has been adopted over the past years. I would as well put light upon early network architecture and the advantages and disadvantages of former and why and how latter architecture were needed and adopted. Network architecture is the design of communication network. It is the complete framework of computer network. The diagram of the network architecture
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Introduction Data communications (Datacom) is the engineering discipline concerned with communication between the computers. It is defined as a subset of telecommunication involving the transmission of data to and from computers and components of computer systems. More specifically data communication is transmitted via mediums such as wires‚ coaxial cables‚ fiber optics‚ or radiated electromagnetic waves such as broadcast radio‚ infrared light‚ microwaves‚ and satellites. Data Communications =
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COMPUTER Q1- a ________ is approximately a million bytes. a) Gigabytes b) Kilobytes c) Megabyte d) Terabyte e) None of these Q2- The programs which are as permanent as hardware and stored in ROM is known as- a) Hardware b) Software c) Firmware d) ROMware e) None of these Q3- Memory is made up of a) Set of wires b) Set of circuits c) Large number of cells d) Set of optical fiber e) All of these Q4- Primary memory stores a) Data
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technician/technologist may be involved with is the running of a new network cable to a device or the repair of one that has been damaged. Although there are a variety of different cable types and connectors‚ this task normally involves terminating unshielded twisted pair (UTP) cable (Figure 1) at either an RJ45 plug (Figure 2) or a Keystone jack (Figure 3). Figure 1: UTP Cable Figure 2: RJ45 Plug Figure 3: Keystone Jack Properly terminated Keystone jacks (Figure 4) are used at patch panels and wall outlets
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KENDRIYA VIDYALAYA SANGATHAN JAMMU REGION . STUDY/SUPPORT MATERIAL 2011-12 CLASS: XII Computer Science ACKNOWLEDGEMENTS Chief Patron Shri Avinash Dikshit Commissioner KVS‚ New Delhi Patron Shri P. K. Koul Assistant Commissioner KVS‚ Jammu Region Guidance
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elements of the ANSI/TIA/-568-C Commercial Building Telecommunication Cabling Standard. Master It 1. Which subsection of the ANSI/TIA-568-C standard would you reference for UTP cabling performance parameters? Answer: ANSI/TIA-568-C.2: Balanced Twisted-Pair Telecommunications Cabling and Components Standard. 2. Witch subsection of the ANSI/TIA-586-C standard would you reference for optical fiber cabling and component performance parameters? Answer: ANSI/TIA-568-C.3: Optical Fiber Cabling Components
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and more expensive cables lessen the changes of interference. Table 4-1 UTP Standards Category Maximum Speed Application 1 1 Mbps Telephone cabling (POTS) 2 4 Mbps Token Ring 3 16 Mbps 10BaseT Ethernet 4 20 Mbps Token Ring 5 100 Mbps (2 pair) 1000 Mbps (4 pair) 10BaseT Ethernet Gigabit Ethernet 5e 1 Mbps Gigabit Ethernet 6 10‚000 Mbps Gigabit Ethernet 6a 10 Gbps 10GBase-T
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