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Share some CCIE 400-201 exam questions and answers below.
A service provider is using point-to-multipoint TE to forward MPLS traffic from one source to multiple destinations, what is a restriction of using this method?
A. Destinations must be manually added and removed on the TE tail-end router
B. Multicast traffic must be implemented using PIM sparse mode
C. Point-to-multipoint TE does not support policy-based routing
D. Only node protection is supported on point-to-multipoint TE LSPs
Answer: C

What is MPLS VPN component used by Multi-VRF solution?
A. Route target community
B. Route distinguisher
C. Default MDT
D. VPN forwarding
Answer: B

Refer to the exhibit. Why is router 1 unable to ping 10.10.100.2 from vrf cust1?
A. Because Multi-VRF support is not enabled
B. Because address-family ipv4 is missing from the VRF statement
C. Because of an incorrect interface configuration
D. Because of a missing BGP configuration
Answer: B

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
Answer: B

A service provider is using multicast flows to provide streaming video content to its customers. Video streams are sometimes interrupted, and network instability is determined to be the cause.
Which action should the service provider take to decrease the burden on the router resources in an unstable unicast routing environment?
A. increase the PIM hello hold timers
B. reduce the volume of query messages
C. filter unnecessary SA messages
D. tune the RPF backoff
Answer: D

A service provider has deployed new PEs using nV Edge technology based on Cisco ASR 9000 routers.
How does the system mitigate against a split-brain state if all control plane and data plane links are lost?
A. The chassis located in the second rack automatically shuts down and only the first rack chassis stays operational
B. Both chassis stay online operating as two different PEs
C. The two chassis send keepalive packets over any layer 2 cloud. The non-DSC chassis shuts down itself after it has received these additional keepalive packets
D. Both chassis stop receiving and forwarding data traffic until the control plane and data plane links are brought back up
Answer: B

In the MVPN profile 3 (Rosen GRE with BGP-AS), which information is included inside of the opaque value?
A. Type 2- Root Address: VPN-ID; 0-n
B. Type 1-source-PE: Global-ID
C. RD:S,G
D. Not applicable for this profile
Answer: D

An operator engineer notices that even through the BGP next-hop tracking feature is enabled in case of a PE failure, the network convergence is still slow.
Which configuration provides a faster convergence time in case a PE fails in this MPLS network?
A.



B.



C.



D.



Answer: D

Which mechanism protects the control and management planes of a cisco IOS device to maintain routing stability, network reachability, and packet delivery?
A. RTBH
B. BGP Flow Spec
C. MQC CLI
D. CPPr
E. NetFlow
Answer: D

SNMPv3 provides which three security features? (Choose three)
A. DES 56-bit encryption
B. Encrypted user password
C. Private community information that is exchanged out-of-band
D. Device hostname that is authenticated via AES algorithm
E. Message integrity
F. Authentication that is based on MD5 or SHA algorithms
Answer: A, E, F

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