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【单选题】

If a switch is working in the fail-open mode， what will happen when the switch’s CAM table fills to capacityand a new frame arrives？（）

A、A copy of the frame is forwarded out all switch ports other than the port the frame was received on.

B、The frame is transmitted on the native VLAN.

C、The switch sends a NACK segment to the frame’s source MAC address.

D、The frame is dropped.

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更多“If a switch is working in the fail-open mode， what will happen when the switch’s CAM table fills to capacityand a new frame arrives？（）”相关的问题
第1题
[单选题] The OSPF RFC 3623 Graceful Restart feature allows you to configure IETF NSF in ultivendor networks. When using OSPF Graceful Restart， which mechanism is used tocontinue forwarding packets during a switchover？（）

A、Reverse Path Forwarding  B、Hardware-based forwarding  C、UDP forwarding  D、Layer 2 Forwarding  

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第2题
[单选题] boolean bool = true； if（bool = false） { System.out.println（“a”）； } else if （bool） { System.out.println（“c”）； } else if （!bool） { System.out.println（“c”）； } else { System.out.println（“d”）； } What is the result？（）  

A、 a  B、 b  C、 c  D、 d  E、 Compilation fails.  

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第3题
[单选题] Which XSL if statement checks for the existence of a homepage attribute within an STS Universal User XML structure?（）

A、<xsl:if test="//stsuuser:AttributeList/stsuuser:Attribute[attr='homepage']">  B、<xsl:if test="//stsuuser:AttributeList/stsuuser:Attribute[@name='homepage']">  C、<xsl:if-exists="//stsuuser:AttributeList/stsuuser:Attribute/custom:Homepage">  D、<xsl:if-exists="//stsuuser:AttributeList/stsuuser:Attribute[@name='homepage'])>  

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第4题
[单选题] Which&#8194;of&#8194;the&#8194;following&#8194;commands&#8194;can&#8194;be&#8194;issued&#8194;without&#8194;interfering&#8194;with&#8194;the&#8194;operation&#8194;of&#8194;loop&#8194;guard？（）

A、Switch（config-if）#spanning-tree guard root  B、Switch（config-if）#spanning-tree portfast  C、Switch（config-if）#switchport mode trunk  D、Switch（config-if）#switchport mode access  

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第5题
[单选题] which&#8194;command&#8194;is&#8194;used&#8194;to&#8194;enable&#8194;CHAP&#8194;authentication&#8194;whit&#8194;PAP&#8194;as&#8194;the&#8194;fallback&#8194;method&#8194;on&#8194;a&#8194;serialinterface？（）

A、（config-if）#authentication ppp chap fallback ppp  B、（config-if）#authentication ppp chap pap  C、（config-if）#ppp authentication  chap pap  D、（config-if）#ppp authentication  chap fallback ppp  

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第6题
[多选题] In&#8194;which&#8194;situations&#8194;does&#8194;the&#8194;Oracle&#8194;Data&#8194;Pump&#8194;use&#8194;external&#8194;tables&#8194;and&#8194;not&#8194;the&#8194;direct&#8194;path&#8194;load&#8194;whileexporting&#8194;a&#8194;table（）

A、if a table is not in a cluster  B、if a table has an active trigger  C、if a table has an encrypted  D、if a table has a column of data type LONG defined on it  E、if a table has a referential integrity constraint defined on it  

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第7题
[判断题] If与End&#8194;if必须成对的使用，有一个if就有一个End&#8194;if与之对应。

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第8题
[多选题] The&#8194;network&#8194;security&#8194;policy&#8194;requires&#8194;that&#8194;only&#8194;one&#8194;host&#8194;be&#8194;permitted&#8194;to&#8194;attach&#8194;dynamically&#8194;to&#8194;each&#8194;switch&#8194;interface.&#8194;If&#8194;that&#8194;policy&#8194;is&#8194;violated,&#8194;the&#8194;interface&#8194;should&#8194;shut&#8194;down.&#8194;Which&#8194;two&#8194;commands&#8194;must&#8194;the&#8194;network&#8194;administrator&#8194;configure&#8194;on&#8194;the&#8194;2950&#8194;Catalyst&#8194;switch&#8194;to&#8194;meet&#8194;this&#8194;policy?&#8194;(Choose&#8194;two.)（）

A、Switch1（config-if）# switchport port-security maximum 1  B、Switch1（config）# mac-address-table secure  C、Switch1（config）# access-list 10 permit ip host  D、Switch1（config-if）# switchport port-security violation shutdown  E、Switch1（config-if）# ip access-group 10  

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第9题
[简答题] what&#8194;will&#8194;happen&#8194;if&#8194;u&#8194;configure&#8194;two&#8194;router&#8194;as&#8194;NTP&#8194;server&#8194;（something&#8194;like&#8194;that）.

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第10题
[简答题] What&#8194;IPv6&#8194;address&#8194;would&#8194;you&#8194;ping&#8194;to&#8194;determine&#8194;if&#8194;OSPFv3&#8194;is&#8194;able&#8194;to&#8194;send&#8194;and&#8194;receive&#8194;unicast&#8194;packets&#8194;across&#8194;a&#8194;link？

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