单项选择题

With the DSCP value fo "101110"， what does the "11" in bits 1 and 2 indicate ？（）

A.AF Class
B.Drop Probability
C.CS（Class Selector Value ）
D.PHB （Per-Hop Behavior ）
E.IP Precedence
F.Queue Depth

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多项选择题

A.Section
B.Line
C.Frame
D.Path
E.DS1

单项选择题

A.IP source address is forged
B.IP destination address is forged
C.IP TCP source port is forged
D.IP TCP destination port is forged
E.None of above

多项选择题

A.MP-BGP routing
B.Static routing
C.Policy routing
D.Autoroute
E.Forwarding adjacency