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净现值是指在项目计算期内，按设定折现率或基准收益率计算的各年净现金流量现值的代数和，计算项目净现值的方法包括()。

A.公式法

B.列表法

C.特殊方法

D.插入函数法

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第1题

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第2题

OSPFstubareasareanimportanttoolfortheNetworkdesigner;whichofthefollowingtwoshouldbeconsideredwhenutilizingOSPFstubareas?()

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第3题

You are the Cisco Network Designer in Cisco.com. Which statement is correct regarding NBAR and NetFlow?()

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B. NBAR examines data in Layers 3 and 4.

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D. NBAR examines data in Layers 2 through 4.

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第4题

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B.IDSwillstopmalicioustrafficfromreachingitsintendedtargetforcertaintypesofattacks.

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第5题

WhyisSTPrequiredwhenVLANsspanaccesslayerswitches?()

A.toensurealoop-freetopology

B.toprotectagainstuser-sideloops

C.inordertosupportbusinessapplications

D.becauseoftheriskoflostconnectivitywithoutSTP

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第6题

InaVoWLANdeployment,whatistherecommendedseparationbetweencellswiththesamechannel?()

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D.6dBm

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第7题

Whatisavirtualfirewall?()

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B.anothernameforafirewalldeployedintransparentmode

C.aseparationofmultiplefirewallsecuritycontextsonasinglefirewall

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第8题

WhichtwoofthesearecharacteristicsofanIDSsensor?()

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第9题

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第10题

Whichofthesetermsreferstocallissuesthatcausevariationsintimingortimeofarrival?()

A.queuing

B.jitter

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