[单选]
Refer to the graphic.Computer 1 is consoles into switch A.Telnet connections and pings run from thecommand prompt on switch A fail.Which of the following could cause this problem？（）

A . switch A dose not have a cdp entry for switch
B . or router JAXB.switch A dose not have an IP address
C . port 1 on switch A should be an access port rather than a trunk port
D . switch A is not directly connected to router JAX
E . switch A does not have a default gateway assigned

教育测量关于消防应急照明和疏散指示系统应急照明集中电源检测项目，下列说法正确的是（）。检查安装场所应符合要求。供电应符合设计要求。应急工作时间应不小于其本身标称的应急工作时间。输出线路、分配电装置、输出电源负载应与设计相符，且不应连接与应急照明和疏散指示无关的负载或插座。应急照明集中电源应设主电和应急电源状态指示灯，主电状态用红色，应急状态用绿色。下列属于国际经济组织的有（） UNSC。 WTO。 OPEC。 APEC。傣文政治体制改革要更加注重发挥（）在国家治理和社会管理中的重要作用，维护国家法制统一、尊严、权威，保证人民依法享有广泛权利和自由。法治。思想统一。政府机构。

Refer to the graphic.Computer 1 is consoles into switch A.Telnet connections and pings run from thecommand prompt on switch A fail.Which of the following could cause this problem？（）

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[单选] Refer to the graphic.Computer 1 is consoles into switch A.Telnet connections and pings run from thecommand prompt on switch A fail.Which of the following could cause this problem？（）

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[单选]
Refer to the graphic.Computer 1 is consoles into switch A.Telnet connections and pings run from thecommand prompt on switch A fail.Which of the following could cause this problem？（）