A.both WPA and WPA2 require authentication support via IEEE 802.1 x and Pre-Shared Key （PSK）
B.both WPA and WPA2 address all known Wired Equivalent Privacy （WEP） vulnerabilities in the IEEE 802.11i security implementation
C.WPA is supported on client devices only. WPA2 is supported on both access point （AP） and client devices
D.WPA provides only a standard for authentication. WPA2 provides a standard for authentication and encryption
E.WPA requires encryption support via Temporal Key Integrity Protocol （TKIP） WPA2 provides encryption support via （symmetric block cipher）AES-CCMP
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A.WCS
B.WLSE
C.Location Appliance
D.WDS
E.WLSE-Express
A.set a minimum bandwidth guarantee
B.increase bandwidth
C.determine a specific transfer rate
D.establish timers
E.configure CBWFQ for best-effort traffic
F.set a maximum bandwidth limit
A.synchronizes FIFO， PQ， CQ， and MDRR， with WFQ， CBWFQ， and LLQ
B.enables strict priority queuing for voice traffic， and weighted round robin queuing for data traffic
C.enables low latency queuing to ensure that voice traffic receives priority treatment
D.enforces a trust boundary on switch access ports and uplinks/downlinks
E.modifies queue sizes as well as queue weights where required
F.adjusts link speeds to adapt to QoS needs
A.class-based policing is configured using the Modular QoS command-line （MQC）
B.only the Frame Relay traffic-shaping （FRTS） mechanism can interact with a Frame Relay network， adapting to indications of Layer2 congestion in the WAN links
C.Distributed Traffic Shaping （DTS） is configured with the police command under the policy map configuration
D.both Frame Relay traffic shaping （FRTS） and virtual IP （VIP）-based Distributed Traffic Shaping （DTS） have the ability to mark traffic
A.serialization delay
B.end-to-end delay
C.lack of bandwidth
D.inconsistent port costs
E.routing table convergence issues
F.poor file transfer rates
最新試題
Which statement is true about the Call Admission Control （CAC） feature in VoIP networks？（）
Which set of classes correctly identifies the four traffic classes， from highest priority to lowest priority， specified in the 802.11e standard？（）
For delay sensitive traffic， what are the three best ways that are used to prevent packet loss？ （）
In the design of a QoS solution， which two factors should be taken into consideration？（）
What are two reasons to implement H·323 gatekeepers？（）
Which of the items stated is typically the most expensive method of improving QoS across WAN links？（）
Which three benefits are realized by implementing Wireless LAN Solution Engine （WLSE）？（）
What are three factors used to determine the amount of bandwidth that is required for a single VoIP call？ （）
What are two ways to minimize the delay of VoIP packets that are traversing a network？ （）
End-to-end QoS is maintained in the Cisco WLAN deployment model by utilizing what parameter in lieu of 802.1p？（）