多項(xiàng)選擇題Which of the following statemets regarding Control Plane Policing （CoPP） is correct？（）

A.Control Plane Policing （CoPP） addresses the need to protect the management planes， ensuring routingstability， availability， and critical packet delivery.
B.Control Plane Policing （CoPP） leverages MQC to define traffic classification criteria and to specifyconfigurable policy actions for the classified traffic.
C.Control Plane Policing （CoPP） uses a dedicated "control-plane" command via the Modular QoS CLI （MQC）to provide filtering and rate limiting capabilities.
D.Control Plane Policing （CoPP） uses "service policy" command under relevant interfaces to filter DOS packet to protect routing packets.
E.Control Plane Policing （CoPP） protects the transit management and data traffic through the router.


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2.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

3.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

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

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

5.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

6.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

7.單項(xiàng)選擇題With VPLS， which protocol is used for label exchange and PW signalling？（）

A.MP-BGP
B.LDP
C.Directed LDP
D.MTP
E.BGP
F.IGP

8.單項(xiàng)選擇題When IPv6 is deployed by a Service Provider to bring on an IPv6 Enterprise， which transition strategyworks the best？（）

A.Deploy IPv6 at the Edges and tunnel Enterprise through the core
B.Deploy IPv6 at Edges and Core at the same time for smooth transition
C.Deploy IPv6 at the core first and then move to Edges toward the end customer
D.None of the above will work

10.單項(xiàng)選擇題

Based on the following output in a router A running LDP， which statement is true？（）

A.None of the above.
B.The IP address 50.0.0.1/32 is assigned to the non-directly connected LDP neighbor， 50.0.0.4.
C.The IP address 50.0.0.1/32 is assigned to one of its own interfaces.
D.The IP address 50.0.0.1/32 is assigned to its directly connected LDP neighbor， 50.0.0.4.