If a metric is not specified for routes that are redistributed into OSPF， the default metric that is assigned to the routes is 20， except for redistributed BGP routes. What is the metric that is assigned to redistributed BGP routes？（）..

第1题

[单选题] boolean&#8194;bool&#8194;=&#8194;true；&#8194;if（bool&#8194;=&#8194;false）&#8194;{&#8194;System.out.println（“a”）；&#8194;}&#8194;else&#8194;if&#8194;（bool）&#8194;{&#8194;System.out.println（“c”）；&#8194;}&#8194;else&#8194;if&#8194;（!bool）&#8194;{&#8194;System.out.println（“c”）；&#8194;}&#8194;else&#8194;{&#8194;System.out.println（“d”）；&#8194;}&#8194;What&#8194;is&#8194;the&#8194;result？（）&#8194;&#8194;

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

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第2题

[单选题] Which&#8194;XSL&#8194;if&#8194;statement&#8194;checks&#8194;for&#8194;the&#8194;existence&#8194;of&#8194;a&#8194;homepage&#8194;attribute&#8194;within&#8194;an&#8194;STS&#8194;Universal&#8194;User&#8194;XML&#8194;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3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4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5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6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7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8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9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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第10题

[多选题] Which&#8194;series&#8194;of&#8194;commands will&#8194;configure&#8194;router&#8194;R1&#8194;for&#8194;LAN-to-LAN&#8194;communication&#8194;with&#8194;router&#8194;R2？&#8194;The&#8194;enterprise&#8194;network&#8194;address&#8194;is&#8194;192.1.1.0/24&#8194;and&#8194;the&#8194;routing&#8194;protocol&#8194;in&#8194;use&#8194;is&#8194;RIP.（）

A、R1（config）# interface ethernet 0；R1（config-if）# ip address 192.1.1.129 255.255.255.192；R1（config-if）# no shutdown B、R1（config）# interface ethernet 0；R1（config-if）# ip address 192.1.1.97 255.255.255.192；R1（config-if）# no shutdown C、R1（config）# interface serial 0；R1（config-if）# ip address 192.1.1.4 255.255.255.252；R1（config-if）# clock rate 56000 D、R1（config）# interface serial 0；R1（config-if）# ip address 192.1.1.6 255.255.255.252；R1（config-if）# no shutdown E、R1（config）# router rip；R1（config-router）# network 192.1.1.4；R1（config-router）# network 192.1.1.128 F、R1（config）# router rip；R1（config-router）# version 2；R1（config-router）# network 192.1.1.0

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