目前实际存在使用的广域网，采取的网络拓扑结构基本都是（）。
A. 网状拓扑结构
B. 环型拓扑结构
C. 总线型拓扑结构
D. 星型拓扑结构
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Whichofthefollowingisabenefitofapplicationvirtualization?（）
A. Theneedformultiplelicensesofanysoftwareisunnecessary
B. Interoperabilityofdisparateprogramsiseasilyattained.
C. Serverloadsaregreatlyreducedfromloweredtraffic.
D. ApplicationsareeasilyaccessiblefromanywhereontheLA
按配送的专业化程度分类，配送中心的配送模式可分（）。
A. 综合配送
B. 专业配送
C. 共同配送
D. 储存配送
E. 即时配送
WhichofthefollowingservervirtualizationfeatureswouldBESTallowanadministratortoquicklyprepareavirtualserversothatitisreadyforuse?（）
A. Remoteconfiguration
B. Nophysicalhardwaretosetup
C. NativeRISintegration
D. Clonethemachinefromatemplate
Which of the following is an appropriate reason for adjusting the SNMP thresholds？（）
A. To eliminate excessive alerts
B. To increase the number of threads
C. To monitor use of VPN traffic
D. To allow more email to come through
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