Chapter 10 The Internet

At the DSL local carrier's office, the __________ demultiplexes the data streams and converts them into ATM data. a. DSLAM b. GrandSlam c. WAP d. line splitter e. X.25 PAD

a. DSLAM

National ISPs connect together and exchange data at ___________. a. Network Access Points b. cable modem termination system endpoints c. distribution hubs d. the Internet engineering task force headquarters e. the Internet Society network center

a. Network Access Points

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

a. On a circuit, the shorter the distance, the higher the speed.

A high-speed Internet has a set of access points called ____pops that provide point-of-presence at ________ speeds. a. giga, gigabit b. mega, megabit c. multi, multibit d. giga, megabit e. multi, gigabit

a. giga, gigabit

A __________ separates traditional voice telephone transmission from the data transmissions in the equipment located at the customer site for DSL. a. line splitter b. V.32bis modem c. line analyzer d. main distribution frame e. network access point

a. line splitter

At the top of the Internet structure are national ___________, such as AT&T and Sprint. a. Network Access Points b. Internet service providers c. bridges d. LATAs e. digital subscriber lines

b. Internet service providers

__________ has led to the belief that the Internet is "free". a. Encrypting b. Peering c. Bridging d. Tolling e. Polling

b. Peering

___________ 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. Popping b. Peering c. Yiping d. Napping e. Chargebacking

b. Peering

A T1 level of ADSL has a maximum downstream rate of about _________ Mbps. a. 9000 b. 8.4 c. 1.5 d. 650 e. 6.1

c. 1.5

Data traffic from the customers premises is sent to a __________ which is located at the local carrier's end office. a. modem b. codec c. DSLAM d. NIC e. ATM

c. DSLAM

For access to DSL, __________ equipment is installed at the customer location. a. point-of-presence b. satellite dish c. customer premises d. metropolitan area exchange e. network access point

c. customer premises

_________ is being pioneered by Yipes.com. a. Active fibrous networking b. The Abilene network c. CA*Net3 d. Ethernet to the home e. Next Generation Internet

d. Ethernet to the home

Digital _________ Line is a family of point-to-point technologies designed to provide high-speed data transmission over traditional telephone lines. a. System b. Satisfaction c. Speedy d. Subscriber e. Switch

d. Subscriber

A digital service offered by cable companies is the _________. a. Abilene network b. WAP proxy c. G.Lite ADSL d. cable modem e. Next Generation Internet

d. cable modem

One advantage of _____________ is that no conversations between LAN and WAN protocols are needed. a. active fibrous networking b. The Abilene network c. CA*Net3 d. ethernet to the home e. Next Generation Internet

d. ethernet to the home

Another term for cable networks that use both fiber-optic and coaxial cable is __________. a. fixed wireless b. mobile wireless c. distribution hub d. hybrid fiber coax e. fibrax

d. hybrid fiber coax

_________ are smaller versions of NAPs that link a set of regional ISPs. a. mini Network Access Points b. cable modem termination system endpoints c. distribution hubs d. metropolitan area exchanges e. points-of-presence

d. metropolitan area exchanges

A _________ is the place at which the ISP provides services to its customers. a. remote access point b. network access point c. cable modem termination system endpoint d. point-of-presence e. metropolitan area exchange

d. point-of-presence

Internet 2 is also known as: a. CA*Net3 b. IETF c. Next Generation Internet d. the Abilene network e. passive optical networking

d. the Abilene network

In passive optical networking, the optical signal has a maximum length of about __________. a. 500 meters b. 1000 meters c. 1 mile d. 5 miles e. 10 miles

e. 10 miles

A ____________ translates a wireless application request to HTTP and sends it over the Internet to the desired Web server. a. passive optical scanner b. local loop c. cable modem d. peer e. WAP proxy

e. WAP proxy

Technologies that provide higher-speed communications than traditional modems (e.g., DSL) are known as ______________ technologies. a. middleband b. narrowband c. rubberband d. metalband e. broadband

e. broadband

Asymmetric DSL uses ___________ multiplexing to create three separate channels over one local loop circuit. a. inverse b. time division c. statistical time division d. wave division e. frequency division

e. frequency division

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 3 b. RFC c. WAP proxy d. fixed wireless connection e. optical-electrical converter

e. optical-electrical converter

Another major high-speed network experimenting with long distance Ethernet over fiber is _____________. a. AT&T b. Sprint c. Yipes d. MCI WorldCom e. the National Lambda Rail

e. the National Lambda Rail