單項(xiàng)選擇題The ASBR-summary LSA is:().

A.Generated by the ASBR and describes reachability to itself
B.Generated by the ASBR and describes reachabilty to the ABR
C.Generated by the ABR and describes reachabilty to the ASBR for routers in a different area from the ASBR
D.Generated by the ABR and describes reachabilty to the ASBR for routers in the same area with the ASBR


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2.單項(xiàng)選擇題What is used to provide read access to QoS configuration and statistics information on Cisco platforms thatsupport Modular QoS CLI (MQC)?()

A.Cisco NBAR Discovery
B.Cisco AutoQoS
C.Cisco Class-Based QoS MIB
D.Cisco SDM QoS Wizard
E.CDP

3.單項(xiàng)選擇題In a frame ,the MPLS label is imposed().

A.After the Layer3 header and before Layer2 header
B.After the Layer2 header and before Layer3 header
C.Within the Layer 3 header
D.Before the layer 2 header

4.多項(xiàng)選擇題Which IOS features are used to avoid Routing loops when dynamic Routing protocols are used betweenPE and CE in MPLS-VPN networks?()

A.Site Of Origin SOO.
B.SHAM links with OSPF
C.BGP cost community
D.BGP feature allow-as in
E.RPF Reverse Path forwarding.
F.Access-list Control in Distance Vector protocol like RIP and EIGRP.

5.單項(xiàng)選擇題BCP (Best Common Practices) 38/RFC 2827 Ingress and Egress Packet Filtering would help mitigate whatclassification of attack?()

A.Sniffing attack
B.Denial of service attack
C.Port Scan attack
D.Reconnaisance attack
E.Spoofing attack

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Which Modular QoS CLI (MQC) based output queuing method is designed to support multiple trafficclasses including VoIP traffic, mission-critical traffic, interactive traffic, and default class traffic?()

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Which two statements about Layer 3 MPLS VPN are true?()

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Assume that the PEs are separated by Multiple P routers.How many labels should the ingress PE push for BPE functionality?()

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What are three common reasons for ATM CRC errors?()

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Which two requirements to deploy 6PE and 6VPE solutions are mandatory?()

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Which four statements about Ethernet virtual circuit (EVC) infrastructure are true? ()

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Which statement is FALSE concerning Concatenation?()

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Which statement about VPLS is true?()

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Two islands of IPv6 networks that are running ISIS (IPv6 IGP) must be connected using a tunnel over anIPv4 network. Which tunneling method can be used to achieve this goal?()

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