Explain the key components required for client workstations to connect to a network and access network resources. Scenario I work for the IT support department of SMARTNETS Inc. an organisation that specialises in Network solutions for medium to large companies. The managers have now asked me to plan the network options for a charity called UCANHELP with an office in Northolt and will like to share resources between 6 computers‚ not in the same room but require internet connection‚ video conference
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Plain Old Telephone Service (POTS) is a simple network that connects a house to the Central Office of the Telephone Company through a Local Loop. The Local Loop consists of twisted pair cables with a maximum length of three miles. Digital Subscriber Line (DSL) Local Loop The DSL System also includes a Local Loop of Twisted Pair Cable that is primarily used to connect computers and other digital equipment as well as telephones. The maximum length of this loop is 11 miles. Interexchange Hierarchy
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girl who would want to divorce me‚ but then she wouldn’t because we’d have kids‚ so instead she’d become the angry woman at the other end of the kitchen table‚ and the kids would grow up watching this… If that was life‚ then it was twisted” (190-191). In the novel Twisted by Laurie Halse Anderson‚ Tyler John Miller is an average nerd and senior in high school‚ living in a household of harsh language and constant fighting. He lived in the social background‚ having only one friend‚ Calvin Hodges‚ nicknamed
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Constructing a new Structure- Building Codes The information in this document should be useful in making design-related decisions that will not only satisfy the move to our new building Information Technology (IT) requirements but also meet the needs of the building and its future occupants with respect to voice‚ video and data communications. The intention of this document is to provide a comprehensive understanding and reference guide that can be referred to when moving to our new building.
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CHAPTER 4 TRANSMISSION MEDIA 4.1 Guided Transmission Media Twisted Pair Coaxial Cable Optical Fiber 4.2 Wireless Transmission Antennas Terrestrial Microwave Satellite Microwave Broadcast Radio Infrared 4.3 Wireless Propagation Ground Wave Propagation Sky Wave Propagation Line-of-Sight Propagation 4.4 Line-of-Sight Transmission Free Space Loss Atmospheric Absorption Multipath Refraction 4.5 4.6 Recommended Reading and Web Sites Key Terms‚ Review Questions‚ and Problems Key Terms Review Questions
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the coaxial cables were replaced with twisted pair and fibre optic links in conjunction with hubs or switches. Data rates were periodically increased from the original 10 megabits per second to 100 gigabits per second. In simple terms‚ Ethernet is a system for connecting a number of computer systems to form a local area network‚ with protocols to control the passing of information and to avoid simultaneous transmission by two or more systems. Twisted-pair Ethernet cables consist of eight copper
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system of transmission method of which is supported by telecommunications cabling such as 100base-Tx Ethernet or digital voice over IP. 2. Unshielded twisted pair – Twisted pair cabling is a type of wiring in which two conductors are twisted. 3. Shielded twisted pair – Twisted pair cabling is a type of wiring in which two conductors are twisted 4. Fiber optic cable – a cable made of optical fibers that can transmit large amounts of information at the speed of light. 5. Dark fiber – Dark
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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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LANs 25.WANs 26.AC signal‚ DC signal 27.Electric cicuit connecting twonodes in a network 28.Full duplex transmission 29.Attenuation 30.Single-mode‚ Multi-mode cables 31.802.11g 32.CSMA/CA 33.Fiber optic cables 34.Shielded twisted pair cable vs. Unshielded twisted pair cable 35.Straight-through‚ Crossover cable 36.UTP‚ Coax‚ Single-mode (SM)‚Multi-mode (MM) cables – max. distance 37.Ethernet max distance per IEEE standard 38.Network troubleshooting using TCP/IP model Chapter 5 39.Ethernet
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very flexible. Thicknet is older and not very common anymore except as a backbone within and between buildings. Coax transmits at 10 Mbps.. Twisted Pair. Twisted pair looks like telephone wire and consists of insulated strands of copper wire twisted together. There are two versions of twisted pair cable: Shielded Twisted Pair (STP) and Unshielded Twisted Pair (UTP). STP is commonly used in Token Ring networks and UTP in Ethernet networks where it is referred to as "10baseT." Transmission rates vary
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