Cisco Cisco Certifications 352-001 Questions & Answers

• Question 171:

  .which two options are benefits of using Topology Independent Loop-Free Alternate in WAN design? (Choose two)

  A. It provides backup convergence for all topologies by avoiding the post-convergence path

  B. It maximizes the network utilization by load-sharing across low bandwidth and edge links while IGP convergence is in progress

  C. No additional protocols are required in the MPLS network because it uses LDP labels to signal the backup path

  D. Although it requires enabling segment routing, SR does not have to be activated as the preferred forwarding method

  E. It can provide backup paths for IPv4, IPv6 and LDP traffic

  Correct Answer: AE

• Question 172:

  A large ISP is analysing which IGP meets these following requirements

  Network must be resilient against unstable MTU in one side of newly released transmission pieces of equipment

  Network must support MPLS traffic engineering solution for future use

  Which IGP must be selected and why?

  A. ISIS : in case MTU changes your TE tunnels keep the LSP stable

  B. OSPF: adjacency remains up even if MTU changes

  C. OSPF: in case MTU changes your TE tunnels keep the LSP stable

  D. ISIS: adjacency remains up even if MTU changes

  Correct Answer: D

• Question 173:

  Refer to the exhibit.

  

  A customer currently has a large EIGRP-based network with several remote sites attached. All remote sites connect to the two corporate data centers, depicted as 10.1.1.0 and 10.1.2.0. The customer has experienced several network-wide failures where neighbors were stuck-in-active and had other network stability issues due to some links flapping. Which two redesign options increase stability and reduce the load on the remote site routers, still maintaining optimal routing between remote sites and the two data centers? (Choose two)

  A. Set the data center routers as stub-routers

  B. Perform summarization at the data centers, selectively leaking routes sent to the remote sites

  C. Perform summarization at the remote sites, selectively leaking routes sent to the data centers

  D. Set the hello interval timer to be larger than the hold interval

  E. Increase the hold interval to accommodate lost hello packets on error-prone links

  Correct Answer: AB

• Question 174:

  Which DCI technology utilizes a "flood and learn" technique to populate the Layer 2 forwarding table?

  A. OTV

  B. E-VPN

  C. VPLS

  D. LISP

  Correct Answer: A

• Question 175:

  Which two conditions must be met for EIGRP to maintain an alternate loop-free path to a remote network? (Choose two)

  A. The Reported Distance from a successor is lower than the local Feasible Distance

  B. The Reported Distance from a successor is higher than the local Feasible Distance

  C. A feasible successor must be present

  D. The feasible Distance from a successor is lower than the local Reported Distance

  E. The feasibility condition do not need to be met

  Correct Answer: AC

• Question 176:

  You are presented with requirements to design a development, testing and production environments. These environment should communicate with each other, yet they should be kept as separate failure domains. Which routing protocol should be configured on the links between the networks to support the design requirements?

  A. OSPF

  B. EIGRP

  C. IS-IS

  D. BGP

  Correct Answer: D

• Question 177:

  A BGP route reflector in the network is talking longer than expected to converge during network changes. Troubleshooting has shown that the router cannot handle all the TCP acknowledgements during route updates. Which action can be performed to tune device performance?

  A. Increase the size of the large buffers

  B. Decrease the size of the small buffers

  C. Increase the keepalive timers for each BGP neighbor

  D. Increase the size of the hold queue

  Correct Answer: D

• Question 178:

  Which mechanism does OSPF use to prevent loops in an MPLS Layer 3 VPNS environment?

  A. Sham link

  B. Down bit

  C. P-Bit

  D. Domain ID

  E. Routing bit

  Correct Answer: B

• Question 179:

  What are two possible drawbacks of ending Loop-Free Alternate to support fast convergence for most destination IGP prefixes? (Choose two)

  A. The IGP topology might need to be adjust

  B. Loop-free alternate's convergence in less than 100 milliseconds is not possible

  C. Loop-free alternate's are supported only for prefixes that are considered external tot the IGP

  D. Loop-free alternates are not supported in global VPN VRF OSPF instances

  E. Additional path computations are needed

  Correct Answer: AE

• Question 180:

  A regional ISP is running MPLS TE. These tunnels are configured manually using paths.

  Which technology centralizes the traffic engineering decisions to reduce operational complexity?

  A. BGP Link State

  B. DiffServ-TE

  C. TE autobandwidth

  D. Shared Risk link Group

  Correct Answer: C