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“Designing Cisco Enterprise Networks (ENSLD)” https://www.leads4pass.com/300-420.html (total questions: 141 questions and answers)

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QUESTION 1
An engineer must design an in-band management solution for a customer with branch sites. The solution must allow
remote management of the branch sites using management protocols over an MPLS WAN. Queueing is implemented at the remote sites using these classes:

How must the solution prioritize the management traffic over the WAN?
A. Mark the traffic with DSCP CS1 and map into Class2 with a minimum bandwidth assigned by reducing the bandwidth
available to CIass3.
B. Mark the traffic with DSCP CS6 and map into Class1 with a minimum bandwidth assigned by reducing the bandwidth
available to Class2
C. Mark the traffic with DSCP EF and map into Class1 with a minimum bandwidth assigned by reducing the bandwidth
available to Class2.
D. Mark the traffic with DSCP CS2 and map into Class2 with a minimum bandwidth assigned by reducing the bandwidth
available to Class3
Correct Answer: C

 

QUESTION 2
A router running ISIS is showing high CPU and bandwidth utilization. An engineer discovers that the router is configured
as L1/L2 and has L1 and L2 neighbors. Which step optimizes the design to address the issue?
A. Make this router a DIS for each of the interfaces
B. Disable the default behavior of advertising the default route on the L1/L2 router
C. Configure the router to be either L1 or L2
D. Configure each interface as either L1 or L2 circuit type
Correct Answer: D

 

QUESTION 3

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

 

QUESTION 4
Which component of Cisco SD-Access integrates with Cisco DNA Center to perform policy segmentation and
enforcement through the use of security group access control lists and security group tags?
A. Cisco Application Policy Infrastructure Controller Enterprise Module
B. Cisco Network Data Platform
C. Cisco Identity Services Engine
D. Cisco TrustSec
Correct Answer: D

 

QUESTION 5
An architect must address sustained congestion on the access and distribution uplink of network. QoS has already been
implemented and optimized, but it is no longer effective in ensuring optimal network performance. Which two solutions
should the architect use to improver network performance. (Choose two)
A. Reconfigure QoS based on the IntServ model
B. Utilize random early detection to manage queues
C. Implement higher-speed uplink interfaces
D. Bundle additional uplinks into logical EtherChannels
E. Configure selective packet discard to drop noncritical network traffic.
Correct Answer: BE

 

QUESTION 6
An engineer is working for a large cable TV provider that requires multiple sources streaming video on different
channels using multicast with no rendezvous point. Which multicast protocol meets these requirements?
A. PIM-SM
B. PIM-SSM
C. any-source multicast
D. BIDIR-PIM
Correct Answer: B

QUESTION 7
A customer\\’s current Layer 2 infrastructure is running Spanning Tree 802.1d, and all configuration changes are
manually implemented on each switch. An architect must redesign the Layer 2 domain to achieve these goals:
1.
reduce the impact of topology changes
2.
reduce the time spent on network administration
3.
reduce manual configuration errors
Which two solutions should the architect include in the new design? (Choose two.)
A. Implement Rapid PVST+ instead of STP.
B. Implement MST instead of STP.
C. Use VTP to propagate VLAN information and to prune unused VLANs.
D. Configure broadcast and multicast storm control on all switches.
E. Configure dynamic trunking protocol to propagate VLAN information.
Correct Answer: CD

 

QUESTION 8
A company with multiple service providers wants to speed up BGP convergence time in the event a failure occurs with
their primary link. Which approach achieves this goal and does not impact router CPU utilization?
A. Utilize BFD and tune the multiplier to 50
B. Lower the BGP hello interval
C. Decrease the BGP keepalive timer
D. Utilize BFD and keep the default BGP timers
Correct Answer: D

 

QUESTION 9
Refer to the exhibit.

Which solution decreases the EIGRP convergence time?
A. Enable subsecond timers
B. Increase the hold time value
C. Increase the dead timer value
D. Enable stub routing on the spokes
Correct Answer: D

 

QUESTION 10
An engineer must design a VPN solution for a company that has multiple branches connecting to a main office. What
are two advantages of using DMVPN instead of IPsec tunnels to accomplish this task? (Choose two.)
A. support for AES 256-bit encryption
B. greater scalability
C. support for anycast gateway
D. lower traffic overhead
E. dynamic spoke-to-spoke tunnels
Correct Answer: BE

 

QUESTION 11
How are wireless endpoints registered in the HTDB in a Cisco SD-Access architecture?
A. Fabric edge nodes update the HTDB based on CAPPWAP messaging from the AP
B. Fabric WLCs update the HTDB as new clients connect to the wireless network
C. Border nodes first register endpoints and then update the HTDB
D. Fabric APs update the HTDB with the clients\\’ ElD and RLOC
Correct Answer: B

 

QUESTION 12
What is the role of a control-plane node in a Cisco SD-Access architecture?
A. fabric device that connects wired endpoints to the SD-Access fabric
B. map system that manages endpoint to device relationships
C. fabric device that connects APs and wireless endpoints to the SD-Access fabric
D. map system that manages External Layer 3 networks
Correct Answer: B

 

QUESTION 13
A company must automate a set of complex changes aligned with DR testing in the network. These changes are
specific, and the DR playbook will be adjusted in the future. The playbook has diverse routing and switching assets in
scope as well as multiple vendor and hardware platforms. A developer will create a thin, web front-end microservice and
integrate with an Open daylight controller to push changes to the network. Which YANG model should be used?
A. Use a single native vendor YANG model to minimize development time
B. Use an open YANG model to allow the reuse of code and standardize the implementation across platforms
C. Use multiple native vendor YANG models to provide code consistency.
D. Develop an individualized YANG model to minimize development resources and time to market.
Correct Answer: B

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