单项选择题

Whatwillcausewirelessvoicedevicestoperformpoorly？（）

A.averagesignalstrengththatisgreaterthan-67dBi
B.celloverlapof15to20percent
C.unevenwirelesscoverage
D.absenceofcoverageholes

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InWhichofthesephasesareacustomer’sbusinessrequirementsidentifiedanddocumented？（）

A.plan
B.design
C.prepare
D.operate

单项选择题

YourCustomerhas21users，eachrequiringbothPCandIPPhoneconnectivity.Whichisthecorrectconfigurationforthiscustomer？（）

A.1Cisco2811ISR,1CatalystExpress500G-12TC,2CatalystExpress500-24PC
B.1Cisco2851ISR,CatalystExpress500G-12TC,3catalystExpress500-24PC
C.1Cisco2821ISR,CatalystExpress500G-12TC,2CatalystExpress500-24PC
D.1Cisco2801ISR,1CatalystExpress500-24PC