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Question 1:

An engineer is troubleshooting L3VPN traffic loss over the MPLS-enabled core network when new core links were enable. Assuming that the IGP is properly configured, which issue causes a temporary data flow blackholing when the IGP and LDP reconverges?

A. MPLS-TE tunnels without LDP adjacencies are used over the new links black-holing the traffic before the LDP label exchange is completed

B. MP-BGP sessions between PE and RR routers require extra time to reconverge than the underlying IGP

C. IP packets are forwarded as soon as routes are learned over a new IGP adjancey before the label exchange happens over the new links

D. LDP is a Layer 2 protocol forwarding Label packets before the IGP reconverged

Correct Answer: C


Question 2:

A service provider has a requirements to deploy a virtual router in its network to handle high-performance data plane service up to 20Gbps. Which Cisco solution fulfills this requirement?

A. Cisco 7600

B. Cisco ASR 9000

C. Cisco NCS 6000

D. Cisco CSR 1000v

E. Cisco nexus 9000v

Correct Answer: B


Question 3:

What is one of the functions of a LISP ingress tunnel router?

A. Ability to integrity-check LISP site registration messages using a SHA2-based HMAC algorithm

B. Responsible for finding EID-to-RLOC mappings for all traffic destined for LISP-capable sites

C. Accept encapsulation Map-request messages, decapsulate them to the MS responsible for the ETR authoritative for the requested EIDs

D. Allows EIDs and RLOCs to communicate in a LISP site that contains EIDs in one address family and RLOCs in a different address family

Correct Answer: B


Question 4:

Refer to the exhibit. A customer is running IS-IS within a network and is using BGP as a CE-PE routing protocol. Which action allows CE1 to get the subnet 10.10.2.0/24 over the CE1-PE1 link, regardless of whether there is a flap in the MPLS link or backdoor link?

A. Configure the neighbor weight 33768 command on CE1 under the BGP process.

B. Configure the distance bgp 115 200 200 command on CE1 under the BGP process.

C. Configure the distance 30 ip command on CE1 under the IS-IS process.

D. Configure the distance bgp 115 200 200 command on CE2 under the BGP process.

E. Configure the neighbor weight 33768 command on CE2 under the BGP process.

Correct Answer: A


Question 5:

Which description of the Russian Doll Model is true?

A. RDM provides bandwidth sharing while providing bandwidth isolation and protection against QoS degradation, and also provides service differentiation for high-priority, normal- priority and best-effort priority services

B. RDM matches simple bandwidth control policies setting individual bandwidth constraint for a given class type and simultaneously limit the aggregate of reserved bandwidth across all class types

C. RDM can be used simultaneously to ensure bandwidth efficiency and to protect against QoS degradation of all class types, whether preemption is used or not

D. RDM guarantees a predefined amount of bandwidth for each type and at the same time allows the bandwidth sharing by defining two pools for every class type: private pool (guaranteed bandwidth) and common pool (bandwidth shared between all class types)

Correct Answer: C


Latest 400-201 Dumps400-201 Practice Test400-201 Exam Questions

Question 6:

What is the main different between an SNMP trap and a syslog message?

A. SNMP traps are formally defined in a MIB, and syslog body contents are not formally defined

B. SNMP traps are forwarded to EMS systems and syslog messages are forwarded to any NMS system

C. SNMP traps are user-definable and vary based on vendor and syslog messages are standards-based

D. SNMP traps are secure, and syslog message are not

E. SNMP traps are triggered during network outages, and syslog messages are informational only

Correct Answer: A


Question 7:

Which three IS-IS TLVs floods the MPLS TE resource allocation information through the network?

(Choose three)

A. Traffic engineering router ID

B. Extended IP reachability

C. IS TE reachability

D. RSVP

E. Extended IS reachability

F. Opaque

Correct Answer: ABE


Question 8:

Refer to the exhibit. A network engineer from ISP 2 is designing the BGP architecture with a requirement of preventing their customer AS 65001 from becoming a transit AS, using the following configuration.

Router BGP 65000

Neighbor 10.0.0.1 remote-as 65001

Neighbor 10.0.0.1 route-map BGP-ROUTE-policy in

Which Cisco IOS command should be used within the route-map to achieve the goal on ISP 2 from AS 65000?

A. route-map BGP-ROUTE-POLICY permit 10 set community no-advertise additive

B. ip as-path access-lists 1 permit^65001$ ! route-map BGP-ROUTE-POLICY deny 10 match as-path 1 ! route-map BGP-ROUTE-POLICY permit 10

C. ip as-path access-list 1 permit^65001$ ! route-map BGP-ROUTE-POLICY permit 10 match as-path 1

D. route-map BGP-ROUTE-POLICY permit 10 set community no-export additive

Correct Answer: C


Question 9:

What type of IPv6 address is the address FF05::2:260:8F908?

A. Multicast temporary site local

B. Multicast permanent node link local

C. Multicast permanent site local

D. Multicast permanent link local

Correct Answer: C


Question 10:

A network operation engineer has these requirement:

*prevent multicast transit when it is enforced by unicast stub routing.

*Reduce the overall processing of PIM control traffic. Especially when the number of stub links increases on the stub device. *protect against multicast spoofing of PM designated router messages and PIM assert messages.

Which solution meets these requirements?

A. explicit tracking of receivers.

B. multicast stub routing.

C. Source Specific Multicast.

D. PIM allow RP.

Correct Answer: B


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