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【单选题】

Prior to 802.1w，Cisco implemented a number of proprietary enhancements to 802.1D to improve convergence in a Layer 2 network. Which statement is correct？（）

A、Only UplinkFast and BackboneFast are specified in 802.1w；PortFast must be manually configured.

B、Only PortFast is specified in 802.1w；UplinkFast and BackboneFast must be manually configured.

C、None of the proprietary Cisco enhancements are specified in 802.1w.

D、PortFast，UplinkFast，and BackboneFast are specified in 802.1w.

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更多“Prior to 802.1w，Cisco implemented a number of proprietary enhancements to 802.1D to improve convergence in a Layer 2 network. Which statement is correct？（）”相关的问题
第1题
[单选题] An administrator has mirrored the root volume group to a second disk， but ’bootlist’ is failing to correctly add the second disk.  What is the likely cause of the problem？（）  

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第2题
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第3题
[] A&#8194;client&#8194;has&#8194;tried&#8194;to&#8194;update&#8194;the&#8194;firmware&#8194;of&#8194;an&#8194;Ethernet&#8194;adapter&#8194;on&#8194;a&#8194;p5&#8194;590,&#8194;however&#8194;it&#8194;repeatedly&#8194;fails.&#8194;What&#8194;is&#8194;the&#8194;most&#8194;likely&#8194;cause&#8194;of&#8194;this&#8194;problem?（）

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第4题
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第5题
[多选题] Which&#8194;two&#8194;of&#8194;these&#8194;elements&#8194;need&#8194;to&#8194;be&#8194;configured&#8194;prior&#8194;to&#8194;enabling&#8194;SSH？（）

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第6题
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A、Manufacturer’s specifications  B、Organizational impact  C、Vendor lists  D、Compatibility requirements  

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第7题
[单选题] At&#8194;which&#8194;of&#8194;the&#8194;following&#8194;times&#8194;should&#8194;the&#8194;administrator&#8194;refer&#8194;to&#8194;the&#8194;HCL？（）

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第8题
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第9题
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第10题
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A、installp  B、instfix  C、lsallq  D、lslpp  

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