单项选择题
You are the Cisco Network Designer in Cisco.com. In your company site， a NAS is both physicall yand logically in the traffic path. The NAS identifies clients solely based on their MAC addresses. Inwhich access mode has this NAS been configured to operate？（）
A. Layer 2 mode
B. Layer 2 Edge mode
C. Layer 3 mode
D. Layer 3 In-Band mode
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单项选择题
WhichIPtelephonydeploymentmodelusesanH.225Gatekeeper-ControlledtrunkforcalladmissioncontrolwithinexistingH.323environments？（）
A. single site with centralized call processing
B. single site with distributed call processing
C. multisite with centralized call processing
D. multisite with distributed call processing -
多项选择题
WhichtwosettingsmustbeconfiguredinordertousetheGUItoconfigureCallAdmissionControlwithvoiceapplications？（）
A. QoS must be set to Platinum
B. WMM must be enabled
C. QoS must be set to Gold
D. TSPEC must be disabled
E. Cisco Compatible Extensions must be disabled -
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Whendesigningaconvergednetwork，whichmeasurescanbetakenatthebuildingaccesslayertohelpeliminatelatencyandensureend-to-endqualityofservicecanbemaintained？（）
A. rate limit voice traffic
B. configure spanning-tree for fast link convergence
C. isolate voice traffic on separate VLANs
D. classify and mark traffic close to the source
