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本地网（local telephone network）
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考题
●In order to improve the performance of a network server，you need to select bus or local bus．The appropriate local bus is (69) ．(69) A．VESAB．ISAC．EISAD．PCI
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In most WANs, the network contains numerous cables or telephone lines, each one connecting a pair ofA．hostsB．routersC．serversD．networks
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What is true regarding the OSPF Type 2 LSA?()
A. The DR floods this to describe the local stub network segment.B. The ABR floods this to describe the local stub network segment.C. The DR floods this to describe the local transit network segment.D. Each OSPF router floods this to describe its interfaces and metrics.E. The DR and BDR flood this to describe the local transit network segment.
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In order to improve the performance of a network server, you need to select bus or local bus. The appropriate local bus is(69).A．VESAB．ISAC．EISAD．PCI
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What does a router do?()
A.Routes traffic down alternative paths and connects the local-area network (LAN) to the wide- area network (WAN)B.Reads Media Access Control (MAC) addresses to forward messages to the correct location and connects the local-area network (LAN) to the wide-area network (WAN)C.Stores data on the network and connects the local-area network (LAN) to the wide-area network (WAN)D.Broadcasts data to all devices that are connected to it across the local-area network (LAN) and wide-area network (WAN)
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【A popular service that has attercted the interest of companies and has home users alike is the sending of voice signals over an IP-based network, such as the Internet. The practice of making telephone calls over the internet has had a number of different names, including packet voice, voice over packet, voice over the internet, internet telephone, and Voice over Ip（Voip）. But it appears the industry has settled on the termVoice ove IP in reference to the internet protocol, which controls the transfer of data over the internet. There are currently three ways to deliver VoIp to users, the first technique is found at the corporate level. Many companies are offering VoIP systerms that operate over a local area network. These systems involve a fair amount of equipment, such as VoIP servers, special IP-enabled telephones, and routers that can direct telephone calls. Today a large portion of corporate sites have converted their older internal telephone systems to VoIP systems that opreate over a LAN, thus converging two systems into one. A second common solution is the one often encountered at home. Using existing telephones, a special converter is added between the telephone and a high speed internet（DSL or cable modem）connection. The converter digitizes the voice signal and creates a stream of packets that are then sent over an ip connection.The third technique involves smart cell phones. Never cell technologies are all packet-based, thus requiring a telephone call to be converted to digital packets and sending those packets over IP networks.】From the paragraph above，a popular service that has attracetd the interest of companies and home users,is termed as （） . The data transfer over the Internet is controlled by the （） . At corporate level, many companies have replaced their older internal telephone systerms with （） that oprerate over a local area network.A、voice over the internet B、voice over packet C、Voice over IP D、internet telephony A、packet B、internet protocol C、industry D、VoIp servers A、VoIP systems B、IP-enablde telephones C、VoIP servers D、routers
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The local area network also connects to a wide area network that allow a message ______ across the country or to other countries.A.is sent
B.to be sent
C.sending
D.send
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The local area network also connects to a wide area network that allow a message ___ across the country or to other countries.A.send
B.sending
C.to be sent
D.is sent
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Charges for local telephone calls are outrageous.A:ridiculous
B:unacceptable
C:unheard of
D:unbelievable
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Which of the following statements is true about the 80/20 rule （Select all that apply）？（）A、20 percent of the traffic on a network segment should be local.B、no more than 20 percent of the network traffic should be able to move across a backbone.C、no more than 80 percent of the network traffic should be able to move across a backbone.D、80 percent of the traffic on a network segment should be local.
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Which network technology allows for the monitoring of active communication networks to diagnose problems and gather statistics for network administration?（）A、Network securityB、Content networkingC、Network managementD、Campus local-area networking
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You have a router running BGP for the MPLS network and OSPF for the local LAN network at the sales office. A route is being learned from the MPLS network that also exists on the OSPF local network. It is important that the router chooses the local LAN route being learned from the downstream switch running OSPF rather than the upstream BGP neighbor. Also， if the local OSPF route goes away， the BGP route needs to be used. What should be configured to make sure that the router will choose the LAN network as the preferred path？（）A、static route needs to be addedB、floating static route needs to be addedC、bgp backdoor commandD、ospf backdoor command
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The VBB Company wants to find out which set of progress tones and cadences are supported with its local Cisco Unified CallManager Express service. Which command should be used?（）A、VBBRtr(config-telephony)#user-network ? B、VBBRtr(config-telephony)#local-network ? C、VBBRtr(config-telephony)#language-type ? D、VBBRtr(config-telephony)#network-locale ? E、VBBRtr(config-telephony)#network-language ?
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An alternative to plain old telephone service (POTS) would be:（）A、X.25.B、Asynchronous transfer mode (ATM).C、VoIP.D、Public Switched Telephone Network (PSTN).
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What is true regarding the OSPF Type 2 LSA?（）A、The DR floods this to describe the local stub network segment.B、The ABR floods this to describe the local stub network segment.C、The DR floods this to describe the local transit network segment.D、Each OSPF router floods this to describe its interfaces and metrics.E、The DR and BDR flood this to describe the local transit network segment.
考题
“电话新装”在英文中的写法是“（）”。A、local telephone removalB、local telephoneC、local telephone installationD、telephone
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What does a router do?（）A、Routes traffic down alternative paths and connects the local-area network (LAN) to the wide- area network (WAN)B、Reads Media Access Control (MAC) addresses to forward messages to the correct location and connects the local-area network (LAN) to the wide-area network (WAN)C、Stores data on the network and connects the local-area network (LAN) to the wide-area network (WAN)D、Broadcasts data to all devices that are connected to it across the local-area network (LAN) and wide-area network (WAN)
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关于AFTN的全称是：（）A、Aeronautical Fixed Telecommunication NetworkB、Airplane Fixed Telecommunication NetworkC、Aeronautical Fixed Telephone NetworkD、Airplane Fixed Telephone Network
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单选题Each NCS woks as a type of（）, assisting controlling and monitoring telex and telephone network as quickly as possible.A
switch operatorB
communication gatewayC
national operatorD
on-scene commande
考题
多选题Which of the following statements is true about the 80/20 rule （Select all that apply）？（）A20 percent of the traffic on a network segment should be local.Bno more than 20 percent of the network traffic should be able to move across a backbone.Cno more than 80 percent of the network traffic should be able to move across a backbone.D80 percent of the traffic on a network segment should be local.
考题
单选题What is true regarding the OSPF Type 2 LSA?（）A
The DR floods this to describe the local stub network segment.B
The ABR floods this to describe the local stub network segment.C
The DR floods this to describe the local transit network segment.D
Each OSPF router floods this to describe its interfaces and metrics.E
The DR and BDR flood this to describe the local transit network segment.
考题
填空题A telephone user may pay a fixed monthly charge and (allow) ____ to make an unlimited number of local calls in the month.
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