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Exercise 1. Read after your teacher. When alone, read aloud the following words and expressions, using the speech-recognition system.




acomputer network or data network, allows computers to exchange data, devices, network nodes, each other, either cable media, wireless media, originate, route and terminate the data, are called network nodes, such as, servers and personal computers, as well as, networking hardware, support applications, access, World Wide Web, shared, application storage servers, fax machines, email,instant messaging applications, physical media, organize network traffic, the network's size, topology and organizational intent, wired technologies, roughly, transmission speed, twisted pair wire, medium, together, reduce crosstalk and electromagnetic induction, ranges,coaxial cable, work-sites for local area networks,ITU-TG.hn technology, existing home wiring (coaxial cable, phone lines and power lines), to create 1 Gigabit/s local area network, an optical fiber, pulses of light to transmit data, some advantages, immunity from electromagnetic radiation, bits per second, colours of lights, to increase the number of messages,terrestrial microwave, Earth-based transmitters and receivers, resembling satellite dishes, microwaves, low-gigahertz range, limits,line-of-sight,relay stations, approximately,apart, communications satellites, via microwave radio waves, the Earth's atmosphere, typically, in geosynchronous orbit,above the equator, capable of receiving and relaying voice, data, and TV signals, cellular and PCS systems, the region covered into multiple geographic areas, each area, a low-power transmitter or radio relay antenna device,radio and spread spectrum technologies,wireless local area networks, high-frequency radio technology, similar to digital cellular and a low-frequency radio technology, spread spectrum technology, to enable,free-space optical communication, visible or invisible light,line-of-sight propagation,exotic technologies, various attempts at transporting data over exotic media, IP over Avian Carriers, humorous April fool's, issued,implemented, interplanetary dimensions via radio waves, both cases, a large round-trip delay time, amounts of information, acommunications protocol, a protocol stack, leverages,services, wireless router,surfing the web, various characteristics,connection-oriented or connectionless, circuit mode or packet switching, hierarchical addressing or flat addressing, network security, provisions and policies,network administrator,unauthorized access, misuse, modification, or denial of the computer network and its network-accessible resources, authorization of access, assigned an ID and password, authority, public and private, to secure daily transactions and communications among businesses, government agencies and individuals, network resilience, provide and maintain an acceptable level of service in the face of faults and challenges to normal operation, typically, views, share, means, geographic location, arbitrarily located users, via peer-to-peer technologies, logical perspectives, physical cabling, routers, bridges and application layer gateways, TCP/IP architecture, subnets, for example, a common practice, a campus of buildings, be aware, varying extents, trust and scope characteristics of a network, private administration, an enterprise, accessible by authorized users (e.g. employees), generally,customers), unofficially, content providers,Internet Service Providers, engineering viewpoint, aggregates of subnets, registered IP address space and exchange information, about the reachability,human-readable names of servers, transparently to users, via the directory function of the Domain Name System (DNS), business-to-business (B2B), business-to-consumer (B2C) and consumer-to-consumer (C2C) communications, sensitive information is exchanged, communications security mechanism, superimposed onto the Internet, without any access, general Internet user, administrators, secure Virtual Private Network (VPN) technology

 





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