ccna1_4_english

1、1、Which definition describes the term Internet? A、a group of PCs connected together on a LAN B、a group of PCs connected together by an ISP C、a network of networks that connects countries around the world D、a worldwide collection of networks controlled by a single organization 2、What type of connection point is a point of presence (POP)? A、between a client and a host B、between two local networks C、between a computer and a switch D、between an ISP and a home-based LAN 3、What is the term for the gro

2、up of high-speed data links that interconnect ISPs? A、Internet LAN B、ISP backbone C、Internet gateways D、Internet providers E、Internet backbone 4、Which device can act as a router, switch, and wireless access point in one package? A、hub B、bridge C、modem D、repeater E、ISR 5、What are three characteristics of business class ISP service? (Choose three.) A、fast connections B、extra web space C、free Windows upgrade D、cheapest cost available to all users E、additional e-mail accounts F、replacement hardware

3、at no cost 6、What type of end-user connectivity requires that an ISP have a DSLAM device in their network? A、analog technology B、cable modem technology C、digital subscriber line technology（数字用户线路技术）D、wireless technology 7、What does the tracert command test? A、NIC functionality B、the ISP bandwidth C、the network path to a destination D、the destination application functionality 8、What term describes each router through which a packet travels when moving between source and destination networks? A、NO

4、C B、ISP C、hop D、segment 9、Which three elements are required to successfully connect to the Internet? (Choose three.) A、an IP address B、file sharing enabled C、a network connection D、server services enabled E、access to an Internet service provider F、an address obtained directly from the RIR 10、What is a major characteristic of asymmetric Internet service? A、Download speeds and upload speeds are equal. B、Download speeds are slower than upload speeds. C、Upload speeds and download speeds are differen

5、t. D、Upload speeds and download speeds are irrelevant. 11、What are three commonly followed standards for constructing and installing cabling? (Choose three.) A、pinouts B、cable lengths C、connector color D、connector types E、cost per meter (foot) F、tensile strength of plastic insulator 12、What are two common causes of signal degradation when using UTP cabling? (Choose two.) A、installing cables in conduit B、having improper termination C、losing light over long distances D、installing low quality cable

6、 shielding E、using low quality cables or connectors 13、What are two advantages of cable management? (Choose two.) A、requires no preplanning B、aids in isolation of cabling problems C、protects cables from physical damage D、provides compliance with future standards E、provides a short-term solution for cable installation 14、Which two characteristics describe copper patch panels（配线面板）? (Choose two.) A、uses RJ-11 jacks B、uses RJ-45 jacks C、supports only data transmissions D、allows quick rearrangements

7、 of network connections E、forwards transmissions based on MAC addresses 15、What connector is used to terminate Ethernet unshielded twisted pair (UTP) cabling? A、ST B、BNC C、RJ-11 D、RJ-45 16、Refer to the graphic. What type of cable is shown?A、crossover B、eight coax channels C、multimode fiber D、single-mode fiber E、straight-through 17、What does adherence tocabling standards(布线标准) ensure? A、data security B、no loss of signal C、no electromagnetic interference D、reliable data communications 18、Which two

8、 places are most appropriate to use UTP cabling? (Choose two.) A、between buildings B、in a home office network C、where EMI is an issue D、in a cable TV network E、inside a school building F、in a manufacturing environment with hundreds of electrical devices 19、Refer to the graphic. What type of cabling is shown? A、STP B、UTP C、coax D、fiber 20、Refer to the graphic. What type of cabling is shown? A、STP B、UTP C、coax D、fiber 21、Why would an ISP require a CMTS device on their network? A、to connect end users using cable technology B、to connect end users using analog technology C、to connect end users using wireless technology D、to connect end users using digital subscriber line technology

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