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Name: __________________________ Date: _____________1. At the top of the Internet structure are national ___________, such as BBN Planet.A) Network Access PointsB) Internet service providersC) bridgesD) LATAsE) digital subscriber lines2. National ISPs connect together and exchange data at ___________.A) Network Access PointsB) cable modem termination system endpointsC) distribution hubsD) the Internet engineering task force headquartersE) the Internet Society network center3. _________ are smaller versions of NAPs that link a set of regional ISPs.A) mini Network Access PointsB) cable modem termination system endpointsC) distribution hubsD) metropolitan area exchangesE) points-of-presence4. __________ has led to the belief that the Internet is “free”.A) EncryptingB) PeeringC) BridgingD) TollingPage 1E) Polling5. ___________ refers to the fact that ISPs do not charge one another (at the same level) for transferring messages they exchange across an NAP or MAE.A) PoppingB) PeeringC) YipingD) NappingE) Chargebacking6. A _________ is the place at which the ISP provides services to its customers.A) remote access pointB) network access pointC) cable modem termination system endpointD) point-of-presenceE) metropolitan area exchange7. In general, local ISPs make money by charging ________.A) customersB) ICANNC) UCAIDD) the DSLAME) CSUs/DSUs8. A ___________ is used by ISPs to authenticate its customers.A) password serverB) remote-access server.C) file serverPage 2D) WAP server.E) Web server9. Which of the following is not an ISP in either the United States or Canada?A) CAISB) iSTARC) CompuServeD) SprintE) ISOC10. Technologies that provide higher-speed communications than traditional modems (e.g., DSL) are known as ______________ technologies.A) middlebandB) narrowbandC) rubberbandD) metalbandE) broadband11. Digital _________ Line is a family of point-to-point technologies designed to provide high-speed data transmission over traditional telephone lines.A) SystemB) SatisfactionC) SpeedyD) SubscriberE) Switch12. For access to DSL, __________ equipment is installed at the customer location.A) point-of-presenceB) satellite dishPage 3C) customer premisesD) metropolitan area exchangeE) network access point13. A __________ separates traditional voice telephone transmission from the data transmissions in the equipment located at the customer site for DSL.A) line splitterB) V.32bis modemC) line analyzerD) main distribution frameE) network access point14. Data traffic from the customers premises is sent to a __________ which is located at thelocal carrier's end office.A) modemB) codecC) DSLAMD) NICE) ATM15. The _________ is the connection from a home or business to the telephone company end office.A) distribution hubB) RFCC) UCAIDD) local loopE) CA*net 3Page 416. DSL modem is also known as a:A) DSL bridgeB) DSL brouterC) DSL routerD) DSL gatewayE) DSL hub17. At the DSL local carrier's office, the __________ demultiplexes the data streams and converts them into ATM data.A) DSLAMB) GrandSlamC) WAPD) line splitterE) X.25 PAD18. Asymmetric DSL uses ___________ multiplexing to create three separate channels overone local loop circuit.A) inverseB) time divisionC) statistical time divisionD) wave divisionE) frequency division19. To balance the trade-off between speed and distance in ADSL, most ADSL service providers have chosen a T1 level of ADSL, and offer it under the trademarked name of _________ ADSL.A) CA*net 3B) DOCSISC) G.LiteD) OEPage 5E) UCAID20. Very-high-data-rate DSL uses multiplexing to provide _________ channels.A) twoB) threeC) fourD) fiveE) six21. Which of the following statements is true?A) On a circuit, the shorter the distance, the higher the speed.B) On a circuit, the longer the distance, the higher the speed.C) On a circuit, the longer the distance, less attenuation occurs.D) On a circuit, the shorter the distance, more attenuation occurs.E) When more attenuation occurs, higher frequency signals can be used effectively.22. A digital service offered by cable companies is the _________.A) Abilene networkB) WAP proxyC) G.Lite ADSLD) cable modemE) Next Generation Internet23. Another term for cable networks that use both fiber-optic and coaxial cable is __________.A) fixed wirelessB) mobile wirelessC) distribution hubPage 6D) hybrid fiber coaxE) fibrax24. A T1 level of ADSL has a maximum downstream rate of about _________ Mbps.A) 9000B) 8.4C) 1.5D) 650E) 6.125. A headend is also referred to as a:A) Abilene networkB) WAP proxyC) cable modemD) distribution hubE) fiber node26. Wireless DSL requires __________ to be effective.A) Abilene networksB) tall buildings or towersC) cable modemsD) fiber nodesE) hybrid fiber coax27. A(n) __________ is used to connect a fiber optic cable from the cable TV company side to a coaxial cable on the customer side.A) CA*net 3B) RFCPage 7C) WAP proxyD) fixed wireless connectionE) optical-electrical converter28. A(n) ___________ contains a series of cable modems/multiplexers and converts the data from cable modem protocols into protocols needed for Internet traffic, before passing them to a router connected to an ISP POP.A) Internet steering systemB) optical-electrical converterC) WAP proxyD) cable modem termination systemE) fixed wireless system29. The multipoint version of fixed wireless is sometimes known as:A) point-to-multipointB) point-to-pointC) CA*Net3D) DOCSISE) DSLAM30. ___________ is designed to enable the use of normal Web applications on computers and devices with small display screen operating over low speed wireless connections.A) CA*Net3B) The Abilene networkC) Internet 2D) Wireless Application ProtocolE) X.25 protocolPage 831. A transceiver at the WAP gateway passes requests to a __________ server from a handheld device.A) main distributionB) Internet SocietyC) local loopD) wireless telephony applicationE) line splitter32. A ____________ translates a wireless application request to HTTP and sends it over the Internet to the desired Web server.A) passive optical scannerB) local loopC) cable modemD) peerE) WAP proxy33. Running fiber optic cable into the home as an alternative networking technology to DSLis called:A) passive optical networkingB) active optical networkingC) passive fibrous networkingD) active fibrous networkingE) wireless networking34. In passive optical networking, the optical signal has a maximum length of about __________.A) 500 metersB) 1000 metersC) 1 mileD) 5 milesPage 9E) 10 miles35. _________ is being pioneered by


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WU BU 309 - Study Notes

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