Which of the following three statements are correct regarding IPv6 QoS? (Choose three.)
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A.
The traffic class field in the IPv6 header can be used to set specific precedence or DSCP
values.
B.
A 20-bit flow label field enables per-flow processing.
C.
DS-TE is not supported by IPv6.
D.
Per-hop behavior in IPv6 networks is based on EXP bits.
E.
IPv6 QoS features are configured using the modular QoS CLI on Cisco routers.
Explanation:
http://www.cisco.com/en/US/technologies/tk648/tk872/technologies_white_paper0900aecd8026004d.pdf