Upgraded copper lines allow maximum speed greater than cable
Signal is not shared back to the switch
Signal is shared back to the switch
Distance is not a factor in signal speed
第1题：
A、book
B、suck
C、browse
D、nest
第2题：
● Traditional Internet access methods like dial-up were so slow that host computers were connected to the dial-up （71） at the customer premise over slow （72） ports. PPP was designed to run directly over these serial links. But with the advent of broadband Internet （73） technologies such as ADSL and cable modems there has been a considerable increase in the bandwidth delivered to the end users. This means that the host computers at the customer premise connect to the （74） or cable "modem" over a much faster medium such as Ethernet. It also means that multiple （75） can connect to the Internet through the same connection.
第3题：
A Next Generation Network(NGN) is a () network ,which is able to provide Telecomunication Services ti users and to make use of multiple broadband, QoS-enable transport technologies and in which service-related functions are (下题选择) of the underlying transport-related technologies.
A.ISDN
B.ATM
C.circuit-based
D.packet-based
第4题：
A.reduced cost
B.better throughput
C.increased security
D.scalability
E.reduced latency
F.broadband incompatibility
第5题：
All client computers on your company network run Windows 7 and are members of an Active Directory Domain Services domain. Your company policy requires that all unnecessary services be disabled on the computers. The Sales department staff has been provided with new mobile broadband adapters that use the Global System for Mobile Communications (GSM) technology. You need to ensure that portable computers can connect to the broadband GSM network. Which service should be enabled on the portable computers?（）
A.WLAN AutoConfig
B.WWAN AutoConfig
C.Computer Browser
D.Portable Device Enumerator Service
第6题：
● Traditional Internet access methods like dial-up were so slow that host computers wereconnected to the dial-up （71） at the customer premise over slow （72） ports. PPP wasdesigned to run directly over these serial links. But with the advent of broadband Internet （73）technologies such as ADSL and cable modems there has been a considerable increase in thebandwidth delivered to the end users. This means that the host computers at the customerpremise connect to the （74） or cable "modem" over a much faster medium such as Ethernet.It also means that multiple （75） can connect to the Internet through the same connection.
第7题：
A. Upgraded copper lines allow maximum speed greater than cable
B. Signal is not shared back to the switch
C. Signal is shared back to the switch
D. Distance is not a factor in signal speed
第8题：
A Next Generation Network(NGN) is a (上题选择) network ,which is able to provide Telecomunication Services ti users and to make use of multiple broadband, QoS-enable transport technologies and in which service-related functions are () of the underlying transport-related technologies.
A.dependent
B.independent
C.related
D.depend
第9题：
A. Broadband personal comm. Service (PCS)
B. Broadband circuit
C. Infrared
D. Spread spectrum
E. Cable
第10题：
收入LTE的原因（）