單項(xiàng)選擇題Which of the following technologies can improve convergence time following a link failure in a serviceprovider network？（）

A.MPLS TE FR
B.MPLS VPN
C.BFD
D.RSVP
E.VPLS
F.SNMP


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1.多項(xiàng)選擇題What are the benefits of using TCAM technology in high-end routing products ？（）

A.Lower power consumption
B.Lower maintenance cost
C.Simplified configuration
D.Deterministic performance
E.Longer uptime

2.單項(xiàng)選擇題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

3.多項(xiàng)選擇題SONET’s three layers are（）.

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

4.單項(xiàng)選擇題Which of the following descriptions about IP spoofing is correct？（）

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

5.多項(xiàng)選擇題Which methods would enable traffic to be forwarded along an MPLS TE tunnel？（）

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