Online Questions - Valid Practice To your 300-420 Exam (Updated 148 Questions)
Practice To 300-420 - Remarkable Practice On your Designing Cisco Enterprise Networks Exam
Cisco ENSDL 300-420 Practice Test Questions, Cisco ENSDL 300-420 Exam Practice Test Questions
Passing the Cisco 300-420: Designing Cisco Enterprise Networks exam together with the core test, known as Cisco 350-401: Implementing Cisco Enterprise Network Core Technologies, is the major requirement for earning the CCNP Enterprise certification. Acing this exam also grants you another certificate that is Cisco Certified Specialist – Enterprise Design.
NEW QUESTION 64
Refer to the exhibit. An architect reviews the low-level design of a company's enterprise network and advises optimizing the STP convergence time. Which functionality must be to Gi1/0/1-10 to follow the architect's recommendation?
- A. UplinkFast
- B. root guard
- C. PortFast
Answer: C
NEW QUESTION 65
Which QoS feature responds to network congestion by dropping lower priority packets?
- A. strict priority
- B. CBWFQ
- C. WRED
- D. tail drop
Answer: C
NEW QUESTION 66
How is internet access provided to a WAN edge router that is connected to a MPLS transport link?
- A. An extranet must be provided in the MPLS transport network to allow private traffic to reach the public internet
- B. OMP advertises a default route from a WAN Edge router that is connected to the MPLS and internet transport networks
- C. Internet access must be provided at the WAN Edge router through either a 4G/5G link or local Internet circuit
- D. TLOC extensions are used to route traffic to a WAN Edge router that is connected to the Internet transport network
Answer: D
NEW QUESTION 67
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 R1 and R2 connections, with R5 and R6 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 R3 and R4 connections, with R3 and R4 as ABRs
Answer: B,D
NEW QUESTION 68
When vEdge router redundancy is designed, which FHRP is supported?
- A. VRRP
- B. HSRP
- C. GLBP
- D. OMP
Answer: A
NEW QUESTION 69
An engineer is designing an EIGRP network for a small branch site where there is only one Layer 3 router.
The engineer wants the router to advertise the local LAN network to remote EIGRP neighbors without sending any unnecessary multicast messages on the local LAN. Which action should the engineer take?
- A. Use a static default route for this site instead of EIGRP
- B. Advertise the local LAN subnet as a stub network
- C. Redistribute the local LAN network using the redistribute connected command
- D. Advertise the local LAN using the network command and the passive-interface feature
Answer: D
NEW QUESTION 70
Which two statements describe source trees in a multicast environment? (Choose two.)
- A. Source trees can create suboptimal paths between the source and the receivers
- B. Source trees guarantee the minimum amount of network latency for forwarding multicast traffic
- C. Source trees can introduce latency in packet delivery
- D. Source trees use a single common root placed at some chosen point in the network
- E. Source trees create an optimal path between the source and the receivers
Answer: B,E
NEW QUESTION 71 
Refer to the exhibit. An engineer is designing a BGP solution for a client that peers with ISP1 for full Internet connectivity and with ISP2 for direct exchange of routes for several third parties. Which action, when implemented on the edge routers, enables the client network to reach the Internet through ISP1?
- A. Apply the AS-path prepend feature for ISP2.
- B. Advertise a default route for downstream routers within the client network.
- C. Apply route filtering such that the client advertises only routes originated from its own AS.
- D. Run an eBGP session within different VRFs for each ISP.
Answer: B
NEW QUESTION 72
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. NAT64
- C. 6to4
- D. 6VPE
Answer: A
Explanation:
Section: Advanced Addressing and Routing Solutions
NEW QUESTION 73 
Refer to the exhibit. An architect must design a solution to connect the network behind R3 with the EIGRP network. Which mechanism should be included to avoid routing loops?
- A. summarization
- B. down bit
- C. split horizon
- D. route tags
Answer: D
Explanation:
Section: Advanced Addressing and Routing Solutions
NEW QUESTION 74
Which two steps can be taken to improve convergence in an OSPF network? (Choose two.)
- A. Tune OSPF parameters
- B. Use Bidirectional Forwarding Detection
- C. Merge all the areas into one backbone area
- D. Make all non-backbone areas stub areas
- E. Span the same IP network across multiple areas.
Answer: A,B
NEW QUESTION 75
When IPsec VPNs are designed, what is a unique requirement if support for IP Multicast is required?
- A. IPsec forwarding using tunnel mode
- B. encapsulation of traffic with GRE or VTI
- C. additional bandwidth for headend
- D. IPsec forwarding using transport mode
Answer: B
Explanation:
Section: WAN for Enterprise Networks
Explanation/Reference:
NEW QUESTION 76
Drag and drop the descriptions from the left onto the Cisco SD-WAN component they describe on the right.
Answer:
Explanation:
Explanation
Answer Area
is responsible for traffic forwarding, security, encryption, QoS,and routing protocols distributes routes and policy information via OMP enables centralized provisioning and simplifies network changes enables the communication of devices that sit behind NAT
NEW QUESTION 77
An engineer is looking for a standards-driven YANG model to manage a multivendor network environment.
Which model must the engineer choose?
- A. OpenConfig
- B. Native
- C. IETF
- D. IEEE NETCONF
Answer: C
NEW QUESTION 78
How do endpoints inside an SD-Access network reach resources outside the fabric?
- A. Fabric borders use VRFs to map VNs to VRFs
- B. A fabric edge is used to de-encapsulate VXLAN traffic to normal IP traffic then transported over the outside network
- C. a VRF fusion router is used to map resources in one VN to another VN
- D. SD-Access transit links are used to transport encapsulated traffic from one fabric to another
Answer: B
Explanation:
Section: Advanced Enterprise Campus Networks
NEW QUESTION 79
An engineer is upgrading a company's main site to include a connection to a second ISP. The company will receive full Internet routing tables from both ISPs via BGP. The engineer must ensure that the company does not become a transit autonomous system. Which solution should be included in this design?
- A. Use a route-map to prevent all prefixes from being advertised to either ISP.
- B. Tag incoming routes from both ISPs with BGP community no-export.
- C. Lower the MED for updates sent to the secondary ISP.
- D. Modify the local-preference for routes incoming from the primary ISP.
Answer: B
NEW QUESTION 80
An engineer uses Postman and YANG to configure a router with:
Which get-config replay verifies that the model set was designed correctly?
- A. Option A
- B. Option C
- C. Option B
- D. Option D
Answer: D
NEW QUESTION 81
A client is moving to Model-Driven Telemetry and requires periodic updates. What must the network architect consider with this design?
- A. Empty data subscriptions do not generate empty update notifications.
- B. The primary push update is sent immediately and cannot be delayed.
- C. Updates that contain changes within the data are sent only when changes occur.
- D. Periodic updates include a full copy of the data that is subscribed to.
Answer: D
Explanation:
Section: Automation
NEW QUESTION 82
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