单项选择题

Which statement is true about the digital to analog conversion process？（）

A.the two steps of digital to analog conversion are decompression and reconstruction of the analog signal
B.the two steps of digital to analog conversion are decoding and filtering
C.the two steps of digital to analog conversion are decompression and filtering of the analog signal
D.the two steps of digital to analog conversion are quantization and decoding

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热门试题

单项选择题WhatisthecorrectprocedureforaddinganaccesspointinWCS？（）

A.Choose Configure >Access_Point， then enter the AP MAC address
B.Choose Configure >Access_Point， then enter the IP address of the AP
C.Wait until the WLC downloads its code from the WCS and choose the access point from the list under the WLC option of the Configure menu
D.Wait until the AP downloads its code from the WCS and choose the access point from the list under the Access_Point option of the Configure menu

单项选择题WhichstatementiscorrectabouttheCiscoQoSSDMwizard？（）

A.the best-effort class will need to have its percentage entered in the QoS Policy Generation screen
B.SDM QoS wizard provides real-time validation of application usage of WAN bandwidth
C.the SDM wizard is not able to monitor QoS policing traffic
D.the SDM QoS wizard is pre-installed on enterprise routers

单项选择题WhichstatementbestdescribestherogueAPlocationdisplayoftheWCSwirelessmanagementserver？（）

A.Cisco WCS Base and Cisco WCS Location both indicate rogue AP location only in a Rogue AP Alarm text file
B.Cisco WCS Base and Cisco WCS Location both indicate rogue AP location in a map at the most probable location that is calculated by two or more APs
C.Cisco WCS Base identifies the general location of rogue APs based on the signal strength received by the nearest managed Cisco APs， whereas Cisco WCS Location adds high-accuracy location tracking to within a few meters of the rogue AP
D.Cisco WCS Base does not have this feature， whereas Cisco WCS Location can indicate rogue AP location in a map at the most probable location that is calculated by two or more APs
E.Cisco WCS Base does not have this feature， whereas Cisco WCS Location can indicate rogue AP location in a map beside the nearest associated AP

单项选择题AstreamofvoicepacketstransmittedoveraWANnetworkencountersdifferingqueuingdelays.Onerouterinthepathusedbythevoicepacketsdelayssomeofthepacketsfor4mswhiletransmittingalargevideofile，butdelaysotherpacketsonly2ms.Anotherrouterdelayssomepackets5ms，buttransmitsothersin2ms.Howwouldyoubestdescribethistypeofproblem？（）

A.end-to-end delay
B.interference from bulk data traffic
C.processing delays
D.serialization delays
E.jitter

多项选择题WhataretwofeaturesofWCSwirelessmanagement？（）

A.centralized management for autonomous access points
B.centralized management for lightweight access points
C.integration with the Location Appliance to expand real time tracking to 1500 devices for 30 days
D.integration with the Location Appliance to expand real time tracking to 2500 devices for 15 days
E.the inclusion of an integrated AAA server F an external AAA-server requirement