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When BGP is used as the PE-CE routing protocol, which of these statements is correct?（）
A . On the CE router, PE neighbors must be configured in the VRF context on the CE router
B . On PE routers, the CE IBGP neighbors are configured in the global BGP configuration
C . On PE routers, the CE EBGP neighbors are configured in the VRF context
D . A separate BGP process must be used on the PE routers for CE routers so that they do not use the same BGP routing process as that used for the PE router's other provider neighbor
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热控测量系统图中，所用下列文字符号各表示什么取源测量点？ （1）PE；（2）FE；（3）LE；（4）TE；（5）A、EW
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按GB50462-2008规范要求，在三相五线制中的A相电缆颜色为（），B相电缆颜色为（），C相电缆颜色为（），N线电缆颜色为（），PE线电缆颜色为（）
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Refer to the exhibit. MPLS has been enabled on router PE11. Which of these statements is correct regarding the output display shown in the exhibit? （）https://assets.asklib.com/images/image2/2018073114120422979.jpg
A . CEF switching is not needed for MPLS operation.
B . CEF switching is only needed to forward labeled packets.
C . CEF switching is needed on both ingress and egress interfaces on which MPLS is enabled.
D . Interface-level CEF switching is needed only on egress interfaces that are sending IP packets on which the egress LSR performs the label imposition process.
E . Interface-level CEF switching is needed only on ingress interfaces that are receiving IP packets on which the ingress LSR performs the label imposition process.
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三相五线制相线A、B、C，零线N，保护接地线PE的标准导线颜色顺序是（）。
A . 红、黄绿双色、黄、蓝、绿
B . 黄、绿、红、蓝、黄绿双色
C . 红、黄、绿、黄绿双色、蓝
D . 红、绿、黄绿双色、蓝、黄
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Which command can be used on a PE router to connect to a CE router （11.1.1.4） in VRF red？（）
A . telnet 11.1.1.4 /vrf-source red
B . telnet 11.1.1.4 source /vrf red
C . telnet 11.1.1.4 /source vrf red
D . telnet 11.1.1.4 /vrf red
E . telnet 11.1.1.4 vrf red
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When EIGRP is used as the PE-CE routing protocol which of these statements is correct?（）
A . EIGRP can be used only as the PE-CE routing protocol if the PE and CE routers are in the same AS
B . Other EIGRP AS routes are automatically advertised to the CE router and do not require a redistribution configuration command to be configured
C . Unlike other routing protocols that are used between PE and CE routers, EIGRP supports backdoor links
D . Configure of the VPN is only required on the PE router
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相线L1（A）、L2（B）、L3（C）相序的绝缘颜色依次为什么颜色？N线的绝缘颜色为什么颜色？PE线的绝缘颜色为什么颜色？
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配电箱电源线及所有三相电源的干线，相线A、B、c为黄、绿、红三色，零线为（），保护接地线（PE）为黄绿相间双色线。
A . 红色
B . 淡蓝色
C . 黄色
D . 浅黄绿色
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You plan to capture a Windows 7 image by using the Windows Preinstallation Environment (Windows PE).You need to ensure that Windows PE supports the Windows Scripting Host (WSH). Which tool should youuse?（）
A . Bcdedit.exe.B . Dism.exe.C . Imagex.exe.D . Oscdimg.exe.
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If the OSPF protocol is used to connect customer edge （CE） routers to service provider edge（PE） routers in the VPN backbone， which two options best describe the use of SHAM links？（）
A . A sham-link is created between any twoo VPN sites that belong to the same OSPF area and share an OSPF backdoor link
B . A sham-link is seen as an intra-area link between PE routers，an OSPF adjacency is created and data base is exchanged
C . A SHAM link is created between two directly connected PE routers so that it is preferred over the low speed backdoor door
D . A SHAM link is part of OSPF network of MPLS-VPN provider
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A weakness of the PE approach to valuing stock is that it is _________
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多线编辑器的命令是： （ ）A、Pe B、Ml C、Mledit D、PMedit
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在TN-C系统中，下列关于保护（PE)线和中性（N)线说明正确的是（)。A．整个系统中PE线和N线是分开的B．整
在TN-C系统中，下列关于保护(PE)线和中性(N)线说明正确的是()。
A．整个系统中PE线和N线是分开的
B．整个系统中PE线和N线部分分开
C．整个系统中PE线和N线是合一的
D．PE线和N线中可接入开关设备
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应用保护接零系统应注意的安全要求中，（）的主要作用是减轻各种过电压的危险。 A．重复接地 B．PE线和PEN线应有防机械损伤措施 C．工作接地 D．保护导体截面面积合格
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三相五线制标准导线颜色为A线黄色B线绿色C线红色N淡蓝色PE黄绿色（）
是
否
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在住宅普通插座回路中，穿管敷设的PE线一般选用 （)A.BLV-1*2.5B.BV-1*1.5C.BV-1*2.5D.BX-1*1.5
在住宅普通插座回路中，穿管敷设的PE线一般选用 ()
A.BLV-1*2.5
B.BV-1*1.5
C.BV-1*2.5
D.BX-1*1.5
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若不知总体标准差，反映均数抽样误差大小的指标，用（)。A．sB．sxC．spD．σpE．σx
若不知总体标准差，反映均数抽样误差大小的指标，用()。
A．s
B．sx
C．sp
D．σp
E．σx
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在低压供电系统中，TN-C系统中PEN线（)。A．严禁接入开关设备B．PE线与N线要分开C．PE线与N线要严禁共
在低压供电系统中，TN-C系统中PEN线()。
A．严禁接入开关设备
B．PE线与N线要分开
C．PE线与N线要严禁共用
D．PE线与N线要严格分开
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我国的相序采用A、B、C、N、PE，其颜色为A黄色、B绿色、C红色、N淡兰色、PE黄绿双色。此题为判断题(对，错)。
是
否
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“A Rose for Emily” could be called a “detective story.”
正确
错误
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按照有关规范的要求，绿/黄双色是（)的颜色。A.L1相线B.L2相线C.N线D.PE线
按照有关规范的要求，绿/黄双色是()的颜色。
A.L1相线
B.L2相线
C.N线
D.PE线
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以下哪一组单词音节划分完全正确？ A. so-le-dad, es-tu-dian-te, tí-a B. ae-ro-puer-to, ter-tu-lia, pa-trón C. li-món, pe-ri-ó-di-co, ciu-dad D. pe-lu-que-ría, mo-tor, ins-ti-tu-to
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三相五线制标准导线颜色为:A线黄色,B线绿色,C线红色,N线淡蓝色,PE线黄绿色。（)
是
否
