WhichtwoitemsbestdescribeaCiscoIOSIPSLAresponder？（）
A. requiredatthedestinationtoimplementCiscoIOSIPSLAservices
B. improvesmeasurementaccuracy
C. requiredforVoIPjittermeasurements
D. providessecurityonCiscoIOSIPSLAmessagesviaLEAPorEAP-FASTauthentication
E. respondstooneCiscoIOSIPSLAoperationperport
F. storestheresultingteststatistics
Whichitemisthemostimportantfactorduringdeploymentofhigh-availabilityfeatures？（）
A. Testmajorchangesbeforedeploymentanddeferminorchangesuntilduringdeployment.
B. Documentandverifyrollbackprocedures.
C. Ensureconsistencyofcodeversionsacrossthenetwork.
D. Progressivelymodifyproceduresanddocumentationduringimplementation.
我厂330MW机组设计煤种收到基挥发分为11.40%，收到基低位发热量为21.602MJ／kg。（)
Whichtwoitemsaremostimportantformanagingthelong-termsuccessofhighavailability？（）
A. pletingaggressiveimplementationschedule
B. StatefulSwitchover
C. panyanduserexpectations
D. NonstopForwarding
E. changecontrolprocesses
F. dualdevicesandduallinks
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