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Quiz 300-420 - Perfect Designing Cisco Enterprise Networks Test Voucher

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Cisco Designing Cisco Enterprise Networks Sample Questions (Q52-Q57):

NEW QUESTION # 52
Refer to the exhibit.

Refer to the exhibit. An architect must design a solution to connect the two ASs. To optimize bandwidth, the design will implement load sharing between router R6 and router R4. Which solution should the design include?

A. Use maximum-paths to install multiple paths in the routing table.
B. Use next-hop-serf attributes only for routes that are learned from eBGP peers.
C. Configure the eBGP TTL to support eBGP multihop.
D. Use update-source to specify the Loopback interface.

Answer: A

NEW QUESTION # 53
Refer to the exhibit.

An architect must design an IGP solution for an enterprise customer. The design must support:
Physical link flaps should have minimal impact.
Access routers should converge quickly after a link failure.
Which two ISIS solutions should the architect include in the design? (Choose two.)

A. Configure access routers to establish a Level 1 adjacency and aggregate routers to establish a Level 1 /
B. Advertise the IS-IS interface and loopback IP address toward the Internet and data center.
C. Use BGP to IS-IS redistribution to advertise all Internet routes in the Level 1 area.
D. Reduce SPF and PRC intervals to improve convergence time.
E. Configure all access and aggregate routers to establish Level 1 / Level 2 adjacencies across the network.

Answer: D,E

Explanation:
Level 2 adjacency.

NEW QUESTION # 54

Refer to the exhibit. All routers currently reside in OSPF area 0. The network manager recently used R1 and R2 as aggregation routers for remote branch locations and R3 and R4 for aggregation routers for remote office locations. The network has since been suffering from outages, which are causing frequent SPF runs. To enhance stability and introduce areas to the OSPF network with the minimal number of ABRs possible, which two solutions should the network manager recommend? (Choose two.)

A. a new OSPF area for R1 and R2 connections, with R5 and R6 as ABRs
B. a new OSPF area for R3 and R4 connections, with R3 and R4 as ABRs
C. a new OSPF area for R1, R2, R3, and R4 connections, with R1, R2, R3, and R4 as ABRs
D. a new OSPF area for R3 and R4 connections, with R5 and R6 as ABRs
E. a new OSPF area for R1 and R2 connections, with R1 and R2 as ABRs

Answer: A,D

Explanation:
Section: Advanced Addressing and Routing Solutions
Explanation/Reference:

NEW QUESTION # 55
Refer to the exhibit. A network engineer must design a highly available OSPF solution based on these requirements:
- Traffic disruptions caused by link or node failures in Area-1 must be resolved in milliseconds.
- In the event of a failure, traffic must switch to another path
without waiting for the OSPF dead interval.
Which fault detection solution must the engineer choose?

A. Decrease SPF timers to 100 ms.
B. Tune the SPF delay and the OSPF LSA interval timers to 100 ms.
C. Enable IP SLA tracking for each OSPF peer.
D. Utilize BFD and tune the BFD timers to 100 ms.

Answer: D

NEW QUESTION # 56
Refer to the exhibit.

EIGRP has been configured on all links. The spoke nodes have been configured as EIGRP stubs, and the WAN links to R3 have higher bandwidth and lower delay than the links to R4. When a link failure occurs at the R1-R2 link, what happens to traffic on R1 that is destined for a subnet attached to R2?

A. R1 load-balances across the paths through R3 and R4 to reach R2
B. R1 has no route to R2 and drops the traffic
C. R1 forwards the traffic to R3 in order to reach R2
D. R1 forwards the traffic to R3, but R3 drops the traffic

Answer: B

Explanation:
The EIGRP stub routing feature will prevent the remote device from advertising core routes back to the distribution devices. Routes learned by the remote device from Distribution 1 will not be advertised to Distribution 2. Therefore, Distribution 2 will not use the remote device as a transit for traffic destined to the network core https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_eigrp/configuration/15-mt/ire-15-mt-book/ire-eigrp-stub-rtg.html

NEW QUESTION # 57
......

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