多项选择题

What are two QoS mechanisms that are used to prevent packet loss？（）

A.header compression
B.payload compression
C.low latency queuing （LLQ）
D.weighted random early detection （WRED）
E.traffic policing
F.traffic shaping

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多项选择题

Which two statements are true about RSVP and the InServ QoS model？（）

A.a drawback of implementing RSVP is the requirement to migrate to a supporting routing protocol
B.RSVP uses DSCP to signal QoS requirements to routers
C.RSVP is a routing protocol
D.RSVP is an IP protocol that uses IP protocol ID 46， and TCP/UDP ports 3455
E.RSVP specifically provides a level of service for rate-sensitive and delay-sensitive traffic
F.the flow-based approach of RSVP is ideal for large， scalable implementations such as the public internet

单项选择题

Refer to the exhibit. What variation of the 802.1x Extensible Authentication Protocol （EAP）
uses this authentication process？（）

A.LEAP
B.EAP-FAST
C.PEAP
D.EAP-TLS

单项选择题

Refer&ensp；to&ensp；the&ensp；exhibit.&ensp；What&ensp；variation&ensp；of&ensp；the&ensp；802.1x&ensp；Extensible&ensp；Authentication&ensp；Protocol&ensp；（EAP）&ensp；
uses&ensp；this&ensp；authentication&ensp；process？（）

A.LEAP
B.EAP-FAST
C.PEAP
D.EAP-TLS