WhataretwofeaturesofWCSwirelessmanagement？（）……

多项选择题WhataretwofeaturesofWLSE-Expresswirelessmanagement？（）

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

多项选择题Whenarouterconvertsanalogsignalstodigitalsignals，whatthreestepsarealwaysincludedintheprocess？（）

A. involution
B. encoding
C. sampling
D. quantization
E. compression
F. companding

单项选择题Whichstatementistrueaboutthecomparisonofvoicetrafficwithvideotraffic？（）

A. Video conferencing traffic tends to be much more bursty in nature and is more prone to have an impact on other traffic flows.
B. Latency requirements are less stringent for video traffic than for voice traffic.
C. Video traffic is less sensitive to dropped packets than for voice traffic.
D. Video traffic requires the retransmission capabilities of TCP whereas voice uses UDP.
E. Voice traffic tends to be much more bursty in nature and is more prone to have an impact on other traffic flows.
F. Voice traffic requires the retransmission capabilities of TCP whereas video uses UDP.

多项选择题WhataretwostepsneededtodefineaQoSpolicyforatrafficclass？（）

A. Determine a minimum bandwidth guarantee.
B. Determine interfaces to which to apply policy.
C. Assign priorities to the class.
D. Configure access control lists.

多项选择题WhatarethreeconsiderationswhenchoosingtheQoSmodeltodeployinanetwork？（）

A. the routing protocols being utilized in the network
B. the applications utilizing the network
C. the traffic destinations
D. network addressing scheme
E. cost of implementation
F. the amount of the control needed of the resources