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单选题
Which color does the router assign to packets received at a datarate that is above the committed rate but is below the peak rate?（）
A
red
B
white
C
green
D
yellow
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单选题To ensure voice packets are kept within the Committed Information Rate (CIR) of a Frame Relay link, what should be used in the CPE?（）A
prioritizationB
classificationC
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单选题Which color does the router assign to packets received at a datarate that is above the committed rate but is below the peak rate?（）A
redB
whiteC
greenD
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单选题To ensure voice packets are kept within the Committed Information Rate （CIR） of a Frame Relaylink， what should be used in the CPE？（）A
prioritizationB
classificationC
fragmentationD
traffic shaping
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单选题Which statement describes how RSVP guarantees bandwidth reservations?（）A
It polices each individual session to an explicit rate.B
It does not police, but never allows link oversubscription.C
It polices the aggregate rate of all sessions to an explicit rate.D
It does not police, but limits the amount of reservable bandwidth.
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单选题Which function enforces logical data throughput rates that are below the actual physical line rate of a port?（）A
rate limitingB
data policingC
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单选题Which QoS model manages the QoS requirements for the network on a per-hop behavior （PHB） basis？（）A
best-effort deliveryB
ingress committed rate （ICR）C
shaping and policingD
egress committed rate （ECR）E
Integrated Services （IntServ）F
differentiated services （DiffServ）
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the previous refresh rate and the new refresh rate applied.B
the method that was used to access the display properties to change the refresh rate.C
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the color resolution the user requested as well as the refresh rate.
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单选题Which IOS QoS mechanism is used strictly to rate limit traffic destinedto the router itself？（）A
Class-Based PolicingB
Control Plane PolicingC
Dual-Rate PolicierD
Single-Rate PolicierE
Class-BasedTraffic Shaper
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单选题For the following items，what is the mathematical relationship between the committed information rate （CIR）， committed burst （Bc）， and committed rate measurement interval （Tc）？（）A
CIR=TC/BcB
CIR=Be/TcC
Tc=CIR/BcD
Tc=Bc/CIR
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