多选题Which two options can be used as traffic descriptors when classifying and marking traffic？ （）Aincoming interfaceBLayer 2 differentiated services code point （DSCP）CLayer 3 IP precedenceDoutgoing interface
多选题
Which two options can be used as traffic descriptors when classifying and marking traffic？ （）
A
incoming interface
B
Layer 2 differentiated services code point （DSCP）
C
Layer 3 IP precedence
D
outgoing interface
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