多项选择题

What are two features of WLSE-Express wireless management？（）

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

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多项选择题

When a router converts analog signals to digital signals， what three steps are always included in the process？（）

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

单项选择题

Which statement is true about the comparison of voice traffic with video traffic？（）

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

What are two steps needed to define a QoS policy for a traffic class？（）

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.

What are two features of WLSE-Express wireless management？ （）

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What are two features of WLSE-Express wireless management？（）