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Cisco 300-420 Exam “Designing Cisco Enterprise Networks (ENSLD)” https://www.leads4pass.com/300-420.html (Total Questions: 141 Q&A)
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Cisco 300-420 exam questions online practice test
QUESTION 1
Which two routing protocols allow for unequal cost load balancing? (Choose two.)
A. EIGRP
B. IS-IS
C. BGP
D. OSPF
E. RIPng
Correct Answer: AC
QUESTION 2
An infrastructure team is concerned about the shared memory utilization of a device, and for this reason, they need to
monitor the device state. Which solution limits the impact on the device and provides the required data?
A. IPFIX
B. static telemetry
C. on-change subscription
D. periodic subscription
Correct Answer: A
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
When designing interdomain multicast, which two protocols are deployed to achieve communication between multicast
sources and receivers? (Choose two.)
A. IGMPv2
B. BIDIR-PIM
C. MP-BGP
D. MSDP
E. MLD
Correct Answer: CD
QUESTION 5
What are two valid scaling techniques when an EIGRP network is designed that consists of more than 1000 routers?
(Choose two.)
A. Use structured hierarchical topology with route summarization
B. Used sub-second timers
C. Use the distribute-list command to filter routes
D. Modify delay parameters on the links
E. Implement multiple EIGRP autonomous systems
Correct Answer: AE
QUESTION 6
DRAG-DROP
Drag and drop the characteristics from the left onto the Yang model they describe on the right.
Select and Place:
Correct Answer:
QUESTION 7
Which QoS feature responds to network congestion by dropping lower priority packets?
A. CBWFQ
B. tail drop
C. WRED
D. strict priority
Correct Answer: C
QUESTION 8
An organization is designing a detailed QoS plan that limits bandwidth to specific rates. Which two parameters are
supported by the traffic policing feature? (Choose two.)
A. violating
B. marking
C. shaping
D. bursting
E. conforming
Correct Answer: BC
QUESTION 9
What is the advantage of designing an out-of-band network management solution?
A. In the event of a production network outage, network devices can still be managed.
B. There is no separation between the production network and the management network.
C. In the event of a production network outage, it can be used as a backup network path.
D. It is less expensive than an in-band management solution.
Correct Answer: A
QUESTION 10
An architect is designing a network that will utilize the spanning tree protocol to ensure a loop-free topology. The
network will support an engineering environment where it is necessary for end-users to connect their own network
switches for testing purposes. Which feature should the architect include in the design to ensure the spanning-tree
topology is not affected by these rogue switches?
A. BPDU Skew Detection
B. BPDU guard
C. loop guard
D. root guard
Correct Answer: D
QUESTION 11
DRAG-DROP
Drag and drop the model-driven telemetry characteristics from the left onto the mode they belong to on the right.
Select and Place:
Correct Answer:
QUESTION 12
An engineer is designing an enterprise campus network. The LAN infrastructure consists of switches from multiple
vendors, and Spanning Tree must be used as a Layer 2 loop prevention mechanism. All configured VLANs must be
grouped in two STP instances. Which standards-based Spanning Tree technology supports this design solution?
A. MSTP
B. RSTP
C. Rapid PVST
D. STP
Correct Answer: A
QUESTION 13
A customer with an IPv4-only network topology wants to enable IPv6 connectivity while preserving the IPv4 topology
services. The customer plans to migrate IPv4 services to the IPv6 topology, then decommission the IPv4 topology.
Which topology supports these requirements?
A. dual-stack
B. 6VPE
C. 6to4
D. NAT64
Correct Answer: A
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