What Practical 400-201 braindumps Is?

Q1. Two Service Providers are beginning a merger between AS boundaries to provide MPLS-enabled services between their networks. Customers are using both Service Providers for services and, under certain circumstances; there are requirements to extend Layer 2 VPN circuits between each provider. The providers are in the process of completing the technical merger. However, the MPLS is not supported between the providers. Which action allows MPLS Layer 2 VPN circuits to be built over the inter-AS link? 

A. Create a GRE tunnel with the mpls ip command between ASBRs. 

B. Create Layer 2 VPN peerings between PE routers from each provider. 

C. Create a VPNv4 peering between ASBRs to advertise labels between each provider. 

D. Create a sham link between ASBR routers to enable a superbackbone peering for Layer 2 VPN signaling. 

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Q2. What are three main characteristics of mLDP that differ from RSVP-TE? (Choose three.) 

A. The LSPs are built from tailend to headend. 

B. The LSPs are built from headend to tailend. 

C. It supports only P2MP LSPs. 

D. It supports both P2MP and MP2MP LSPs. 

E. Signaling is periodic. 

F. No periodic signaling is performed. 

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Q3. Which BGP feature improves the convergence and response time to adjacency changes with BGP neighbors? 

A. Fast Peering Session Deactivation 

B. BGP Multihop 

C. reducing BGP scanner timing to the minimum that is supported 

D. TTL Security Check 

E. Next-Hop Address Tracking 

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Q4. An engineer has just configured IOS-XR with out-of-band MPP. Which are the three results that will occur? (Choose three.) 

A. Management traffic to RP from all non-MPP interfaces is dropped 

B. RP/DRP Ethernet Interfaces are not default out-of-band interfaces. 

C. MPP configuration changes doesn’t affect active sessions established before the changes 

D. Interfaces configured for out-of-band MPP are still part of global routing/forwarding 

E. If MPP is disabled and a protocol is activated, all interfaces cannot pass traffic 

F. LPTS will provide rate limiting 

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Q5. Refer to the exhibit. OSPFv3 is already running, and R1 has added a new subnet (loopback 11). What is the reason code on R4 when executing the command show ipv6 ospf statistics? 

A. P (partial) 

B. N (network) 

C. R (router) 

D. L (link) 

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Q6. Refer to the exhibit. 

Why does R1 not receive a label for 10.0.0.3/32 prefix? 

A. R1 does not have an established LDP neighborship with the router announcing the 10.0.0.3/32 prefix. 

B. The 10.0.0.3/32 prefix is being null-routed in the downstream neighbor 

C. LDP peer is not configured to advertise a label for the 10.0.0.3/32 prefix 

D. BGP is not configured to exchange labels with the BGP peer advertising 10.0.0 3/32 prefix 

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Q7. Which is one difference between H-VPLS and VPLS? 

A. VPLS is a point-to-point Layer-2 services and H-VPLS is a multipoint Layer-2 services. 

B. H-VPLS reduces signaling overhead and packet replication requirements for the provider edge. 

C. VPLS improve scalability concerns identified on H-VPLS implementation. 

D. H-VPLS connects using also other Layer-2 encapsulation such as PPP and VPLS connects using Ethernet encapsulation only 

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Q8. 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. Reduce the volume of query messages. 

B. Tune the RPF backoff. 

C. i Increase the PIM hello hold timers. 

D. Filter unnecessary SA messages. 

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Q9. Refer to the exhibit: 

Which Cisco IOS XE configuration method allocates a label for prefixes with a /32 subnet mask only? 

A. Option 1 

B. Option 2 

C. Option 3 

D. Option 4 

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Q10. An engineer wants to configure Fast Reroute in the network. Which methodology eliminates RSVP configuration in the network? 

A. Enable LDP Fast Synch. 

B. Enable IP Fast Reroute. 

C. Enable the auto tunnel primary feature. 

D. Enable Cisco MPLS TE Fast Reroute. 

E. Enable the auto tunnel backup feature. 

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