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【单选题】

An&ensp;administrator&ensp;has&ensp;received&ensp;complaints&ensp;from&ensp;users&ensp;that&ensp;an&ensp;application&ensp;is&ensp;not&ensp;available&ensp;while&ensp;other&ensp;applications&ensp;&ensp;run.&ensp;This&ensp;&ensp;application&ensp;&ensp;resides&ensp;&ensp;on&ensp;&ensp;an&ensp;&ensp;NFS&ensp;&ensp;mounted&ensp;&ensp;filesystem.&ensp;&ensp;<br /> Which&ensp;&ensp;of&ensp;&ensp;the&ensp;&ensp;following&ensp;&ensp;commands&ensp;should&ensp;be&ensp;run&ensp;as&ensp;a&ensp;reasonable&ensp;first&ensp;step&ensp;to&ensp;handle&ensp;this&ensp;problem（）

A、df

B、showmount

C、exportfs

D、refresh -g nfs

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第1题

[单选题] Which of the following devices would be installed if an administrator wants to control a group of servers from a remote location？（）

A、&ensp;VLAN B、&ensp;KVM C、&ensp;IP&ensp;KVM D、&ensp;RAID

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第2题

[单选题] You work as an application developer at Certkiller .com. You are developing an application that makes use of a Queue class object named MyQueue. This Queue class object will be used to store messages sent by the user during application run time. The application that you are developing provides an interface for administrators and an interface for users to create message reports.You want to ensure that all user messages stored in the MyQueue object are removed when an administrator selects the reset optio

A、&ensp;Use&ensp;the&ensp;Enqueue&ensp;method&ensp;of&ensp;the&ensp;MyQueue&ensp;object. B、&ensp;Use&ensp;the&ensp;Clear&ensp;method&ensp;of&ensp;the&ensp;MyQueue&ensp;object. C、&ensp;Use&ensp;the&ensp;Dequeue&ensp;method&ensp;of&ensp;the&ensp;MyQueue&ensp;object. D、&ensp;Use&ensp;the&ensp;TrimToSize&ensp;method&ensp;of&ensp;the&ensp;MyQueue&ensp;object.

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第3题

[多选题] Which of the following are not true OSPF LSA rules？（）

A、OSPF&ensp;LSA&ensp;type&ensp;5&ensp;triggers&ensp;an&ensp;LSA&ensp;type&ensp;7&ensp;at&ensp;an&ensp;ABR&ensp;between&ensp;an&ensp;NSSA&ensp;and&ensp;the&ensp;backbone&ensp;area B、OSPF&ensp;LSA&ensp;type&ensp;1&ensp;triggers&ensp;an&ensp;LSA&ensp;type&ensp;3&ensp;at&ensp;an&ensp;ABR. C、OSPF&ensp;LSA&ensp;type&ensp;7&ensp;triggers&ensp;an&ensp;LSA&ensp;type&ensp;5&ensp;at&ensp;an&ensp;ABR&ensp;between&ensp;an&ensp;NSSA&ensp;and&ensp;the&ensp;backbone&ensp;area D、OSPF&ensp;LSA&ensp;type&ensp;3&ensp;triggers&ensp;an&ensp;LSA&ensp;type&ensp;4&ensp;at&ensp;an&ensp;ABR. E、OSPF&ensp;LSA&ensp;type&ensp;5&ensp;triggers&ensp;an&ensp;LSA&ensp;type&ensp;7&ensp;at&ensp;an&ensp;A5BR&ensp;but&ensp;only&ensp;in&ensp;N5SAs F、OSFP&ensp;LSA&ensp;type&ensp;2&ensp;triggers&ensp;an&ensp;LSA&ensp;type&ensp;3&ensp;at&ensp;an&ensp;ABR

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第4题

[单选题] Users&ensp;report&ensp;that&ensp;they&ensp;are&ensp;unable&ensp;to&ensp;connect&ensp;to&ensp;a&ensp;server.&ensp;An&ensp;administrator&ensp;confirms&ensp;that&ensp;it&ensp;is&ensp;unreachable&ensp;across&ensp;the&ensp;network.&ensp;Other&ensp;administrators&ensp;have&ensp;been&ensp;working&ensp;in&ensp;the&ensp;server&ensp;room&ensp;throughout&ensp;the&ensp;day.&ensp; Which&ensp;of&ensp;the&ensp;following&ensp;is&ensp;the&ensp;NEXT&ensp;step&ensp;the&ensp;administrator&ensp;should&ensp;take？（）

A、&ensp;Verify&ensp;the&ensp;configuration&ensp;of&ensp;the&ensp;connected&ensp;port&ensp;on&ensp;the&ensp;network&ensp;switch. B、&ensp;Reboot&ensp;the&ensp;server. C、&ensp;Install&ensp;a&ensp;new&ensp;NIC&ensp;on&ensp;the&ensp;server. D、&ensp;Verify&ensp;that&ensp;network&ensp;cables&ensp;are&ensp;connected.

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第5题

[多选题] Which two statements are true？（）

A、&ensp;An&ensp;inner&ensp;class&ensp;may&ensp;be&ensp;declared&ensp;as&ensp;static. B、&ensp;An&ensp;anonymous&ensp;inner&ensp;class&ensp;can&ensp;be&ensp;declared&ensp;as&ensp;public. C、&ensp;An&ensp;anonymous&ensp;inner&ensp;class&ensp;can&ensp;be&ensp;declared&ensp;as&ensp;private. D、&ensp;An&ensp;anonymous&ensp;inner&ensp;class&ensp;can&ensp;extend&ensp;an&ensp;abstract&ensp;class. E、&ensp;An&ensp;anonymous&ensp;inner&ensp;class&ensp;can&ensp;be&ensp;declared&ensp;as&ensp;protected.

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第6题

[单选题] What&ensp;is&ensp;the&ensp;result？（）

A、X，&ensp;followed&ensp;by&ensp;an&ensp;Exception. B、No&ensp;output，&ensp;and&ensp;an&ensp;Exception&ensp;is&ensp;thrown. C、Compilation&ensp;fails&ensp;due&ensp;to&ensp;an&ensp;error&ensp;on&ensp;line&ensp;14. D、Compilation&ensp;fails&ensp;due&ensp;to&ensp;an&ensp;error&ensp;on&ensp;line&ensp;16. E、Compilation&ensp;fails&ensp;due&ensp;to&ensp;an&ensp;error&ensp;on&ensp;line&ensp;17. F、X，&ensp;followed&ensp;by&ensp;an&ensp;Exception，&ensp;followed&ensp;by&ensp;B

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第7题

[多选题] Which the following two statements are true？（）

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第8题

[单选题] In BGP graceful restart， how does a peer router indicate the end of a route exchange？（）

A、An&ensp;open&ensp;message&ensp;with&ensp;the&ensp;E&ensp;bit&ensp;set. B、An&ensp;update&ensp;message&ensp;with&ensp;the&ensp;E&ensp;bit&ensp;set. C、An&ensp;open&ensp;message&ensp;with&ensp;an&ensp;end-of-RIB&ensp;marker. D、An&ensp;update&ensp;message&ensp;with&ensp;an&ensp;end-of-RIB&ensp;marker.

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第9题

[单选题] What&ensp;is&ensp;the&ensp;result？（）

A、Compilation&ensp;fails. B、An&ensp;exception&ensp;is&ensp;thrown&ensp;at&ensp;runtime. C、An&ensp;instance&ensp;of&ensp;Forest&ensp;is&ensp;serialized. D、An&ensp;instance&ensp;of&ensp;Forest&ensp;and&ensp;an&ensp;instance&ensp;of&ensp;Tree&ensp;are&ensp;both&ensp;serialized.

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第10题

[单选题] Given： What&ensp;is&ensp;the&ensp;result？（）

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