Thursday, August 31, 2017

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Share some CCIE 400-201 exam questions and answers below.
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 
Answer: ACF

ISP A provides L2VPN services to Company B through an MPLS network. Company B uses all available CoS values to classify and different traffic forwarding within all Company B sites. 
ISP A uses the following CoS values to differentiate service classes for the VPN customer traffic 
• MPLS EXP 0 for Bronze service class 
• MPLS EXP 1 for Silver service class 
• MPLS EXP 2 for Gold service class 
• Remaining MPLS EXP values for ISP A internal use 
ISP A¡¯s policy is to forward VPN customer traffic based only on their Bronze, silver and Gold service classes. 
Which QoS method must ISP A implement to achieve this? 
A. Short-pipe Mode 
B. Russian Doll Model 
C. Pipe Mode 
D. Uniform Mode 
E. Maximum Allocation Model 
Answer: D

In which three scenarios does multihoming in IS-IS work? (Choose three.) 
A.merging Level 1 areas 
B.splitting the Level 1 area 
C.renumbering NSAP addresses 
D.modifying the system ID 
E.merging Level 2 areas 
F.splitting the Level 2 area 
G.creating an alternative path to the exit point 
Answer: ABC

Why are thresholds defined based on baseline documents? 
A. To help identify current network problems and predict future bottlenecks 
B. To reduce polling traffic on the network 
C. To verify that interfaces are in the correct state 
D. To suppress duplicate alarms and for event correlation 
E. To ensure that QoS parameters are defined appropriately 
Answer: A

Which option is the benefit of per-link LFA over per-prefix LFA? 
A. It has a greater applicability 
B. It provides greater protection coverage 
C. It is simpler 
D. It enables better bandwidth utilization 
Answer: C

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