Updated Jul-2025 Exam 300-420 Dumps - Pass Your Certification Exam
Latest Real Cisco 300-420 Exam Dumps Questions
NEW QUESTION # 46
Refer to the exhibit.
An engineer must design a WAN solution so that ISP-1 is always preferred over ISP-2. The path via ISP-2 is considered as a backup and must be used only when the path to ISP-1 is down. Which solution must the engineer choose?
- A. R1:
- Routes advertised to ISP-1: 0x AS-path prepend
- Routes received from ISP-1: HIGH local-preference
- Routes advertised to R2: no action
- Routes received from R2: community NO-EXPORT
R2:
- Routes advertised to ISP-2:5x AS-path prepend
- Routes received from ISP-2: LOW local-preference
- Routes advertised to R1: community NO-ADVERTISE
- Routes received from R1: no action - B. R1:
- Routes advertised to ISP-1: 0x AS-path prepend
- Routes received from ISP-1: LOW local-preference
- Routes advertised to R2: community NO-ADVERTISE
- Routes received from R2: no action
R2:
- Routes advertised to ISP-2: 5x AS-path prepend
- Routes received from ISP-2: HIGH local-preference
- Routes advertised to R1: no action
- Routes received from R1: community NO-ADVERTISE - C. R1:
- Routes advertised to ISP-1: 5x AS-path prepend
- Routes received from ISP-1: LOW local-preference
- Routes advertised to R2: community NO-ADVERTISE
- Routes received from R2: no action
R2:
- Routes advertised to ISP-2: 0x AS-path prepend
- Routes received from ISP-2: HIGH local-preference
- Routes advertised to R1: community NO-EXPORT
- Routes received from R1: no action - D. R1:
- Routes advertised to ISP-1: 0x AS-path prepend
- Routes received from ISP-1: HIGH local-preference
- Routes advertised to R2: community NO-EXPORT
- Routes received from R2: no action
R2:
- Routes advertised to ISP-2: 5x AS-path prepend
- Routes received from ISP-2: LOW local-preference
- Routes advertised to R1: no action
- Routes received from R1: no action
Answer: D
NEW QUESTION # 47
Refer to the exhibit.
An architect is designing an EIGRP solution based on these requirements:
* Traffic forwarding should use the best two paths while all links are available
* Single path failure must not impact traffic between branch and HQ
Which solution must the architect select?
- A. Variance 2
- B. Maximum-paths 2
- C. Add-paths 2
- D. Metric weights 010100
Answer: A
Explanation:
ENSLD cert guide page 113. shortest path = 900, next 1700 and finally 3300 for the worst path. Witch variance 2, all routes under 1800 (900x2) become active.
NEW QUESTION # 48
Which option will help build your customers platform during the discovery phase?
- A. business case
- B. detailed design
- C. PO
- D. high-level design
- E. POV report
Answer: A
NEW QUESTION # 49
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 forwards the traffic to R3, but R3 drops the traffic
- 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 load-balances across the paths through R3 and R4 to reach R2
Answer: C
NEW QUESTION # 50
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:
* reduce the impact of topology changes
* reduce the time spent on network administration
* reduce manual configuration errors
Which two solutions should the architect include in the new design? (Choose two.)
- A. Configure dynamic trunking protocol to propagate VLAN information.
- B. Use VTP to propagate VLAN information and to prune unused VLANs.
- C. Implement Rapid PVST+ instead of STP.
- D. Implement MST instead of STP.
- E. Configure broadcast and multicast storm control on all switches.
Answer: B,E
NEW QUESTION # 51
Which feature of Cisco SD-WAN Secure Direct Cloud Access divides user traffic into different zones and VPNs or VRFs?
- A. perimeter control
- B. secure segmentation
- C. application-awareness routing
- D. centralized data policy
Answer: B
NEW QUESTION # 52
Refer to the exhibit.
An engineer must design a WAN solution so that ISP-1 is always preferred over ISP-2. The path via ISP-2 is considered as a backup and must be used only when the path to ISP-1 is down. Which solution must the engineer choose?
- A. R1:
- Routes advertised to ISP-1: 0x AS-path prepend
- Routes received from ISP-1: HIGH local-preference
- Routes advertised to R2: no action
- Routes received from R2: community NO-EXPORT
R2:
- Routes advertised to ISP-2:5x AS-path prepend
- Routes received from ISP-2: LOW local-preference
- Routes advertised to R1: community NO-ADVERTISE
- Routes received from R1: no action - B. R1:
- Routes advertised to ISP-1: 0x AS-path prepend
- Routes received from ISP-1: LOW local-preference
- Routes advertised to R2: community NO-ADVERTISE
- Routes received from R2: no action
R2:
- Routes advertised to ISP-2: 5x AS-path prepend
- Routes received from ISP-2: HIGH local-preference
- Routes advertised to R1: no action
- Routes received from R1: community NO-ADVERTISE - C. R1:
- Routes advertised to ISP-1: 5x AS-path prepend
- Routes received from ISP-1: LOW local-preference
- Routes advertised to R2: community NO-ADVERTISE
- Routes received from R2: no action
R2:
- Routes advertised to ISP-2: 0x AS-path prepend
- Routes received from ISP-2: HIGH local-preference
- Routes advertised to R1: community NO-EXPORT
- Routes received from R1: no action - D. R1:
- Routes advertised to ISP-1: 0x AS-path prepend
- Routes received from ISP-1: HIGH local-preference
- Routes advertised to R2: community NO-EXPORT
- Routes received from R2: no action
R2:
- Routes advertised to ISP-2: 5x AS-path prepend
- Routes received from ISP-2: LOW local-preference
- Routes advertised to R1: no action
- Routes received from R1: no action
Answer: D
NEW QUESTION # 53
Drag and drop the description from the left onto the corresponding WAN connectivity types and categories on the right.
Answer:
Explanation:
NEW QUESTION # 54
Drag and drop the characteristics from the left onto the correct telemetry mode on the right.
Answer:
Explanation:
In a dial-in mode, the destination initiates a session to the router and subscribes to data to be streamed. Dialin mode is supported over gRPC in only 64-bit platforms In a dial-out mode, the router initiates a session to the destinations based on the subscription. All 64-bit IOS XR platforms (except for NCS 6000 series routers) support gRPC and TCP protocols. All 32-bit IOS XR platforms support only TCP.
Reference:
https://www.cisco.com/c/en/us/td/docs/iosxr/asr9000/telemetry/b-telemetry-cg-asr9000-61x/b-telemetry-cgasr9000-
61x_chapter_010.html#id_36445
NEW QUESTION # 55
Which three key differentiators that DNA Assurance provides that our competitors are unable to match? (Choose three.)
- A. Proactive approach to guided remediation
- B. VXLAN support
- C. On-premise and cloud-base analytics
- D. Network time travel
- E. Support for Overlay Virtual Transport
- F. Apple Insights
Answer: A,D,F
NEW QUESTION # 56
Refer to the exhibit.
Which statement about the INTERNET ACL is true?
- A. A packet with a source address of 2001:DB80:AD59:BA21:101:CAB:64:38 destined to port 80 will be permitted.
- B. A packet with a source address of 2001:DB8:AD59:ACC0:2020:882:DB8:1125 will be denied.
- C. The denied entries will be logged because of the explicit deny ipv6 any any log line.
- D. HTTPS traffic from the 2001:DB8:AD59:BA21::/64 subnet will automatically be permitted along with HTTP traffic.
Answer: A
Explanation:
Explanation/Reference:
NEW QUESTION # 57
Which design element should an engineer consider when multicast is included in a Cisco SD-Access architecture?
- A. PIM SSM must run in the underlay.
- B. Multicast clients reside in the underlay, and the multicast source is outside the fabric or in the overlay.
- C. Rendezvous points must be used in a PIM SSM deployment.
- D. Multicast traffic is transported in the overlay and the EID space for wired and wireless clients.
Answer: D
Explanation:
Explanation
Multicast traffic is transported in the overlay, in the EID space, for both wired and wireless clientshttps://www.ciscolive.com/c/dam/r/ciscolive/us/docs/2018/pdf/BRKEWN-2020.pdf
https://www.cisco.com/c/dam/en/us/td/docs/cloud-systems-management/network-automation-and-management/d
NEW QUESTION # 58
Refer to the exhibit. Which two solutions maximize the use of the links between the core and distribution layers? (Choose two.)
- A. use an IGP
- B. use multiple equal-cost links
- C. use R-PVSTP+
- D. use multiple unequal-cost links
- E. use HSRP
Answer: A,B
NEW QUESTION # 59
Drag and drop the description from the left onto the corresponding WAN connectivity types and categories on the right.
Answer:
Explanation:
NEW QUESTION # 60
Refer to the exhibit. Which two solutions maximize the use of the links between the core and distribution layers? (Choose two.)
- A. use RPVSTP+
- B. use an IGP
- C. use multiple equal-cost links
- D. use multiple unequal-cost links
- E. use HSRP
Answer: B,C
NEW QUESTION # 61
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. Run an eBGP session within different VRFs for each ISP.
- B. Apply the AS-path prepend feature for ISP2.
- C. Advertise a default route for downstream routers within the client network.
- D. Apply route filtering such that the client advertises only routes originated from its own AS.
Answer: C
NEW QUESTION # 62 
Refer to the exhibit. An engineer is designing an OSPF network for a client. Requirements dictate that the routers in Area 1 should receive all routes belonging to the network, including EIGRP, except the ones originated in the RIP domain. Which action should the engineer take?
- A. Make area 1 a standard OSPF area.
- B. Make area 1 a NSSA.
- C. Make area 1 a stub.
- D. Make the area 1 routers part of area 0.
Answer: B
Explanation:
NEW QUESTION # 63
Drag and drop the elements from the left onto the functions they perform in the Cisco SD-WAN architecture on the right.
Answer:
Explanation:
NEW QUESTION # 64
An engineer is designing a QoS policy that queues excess packets for later transmission. Which mechanism must be included in the design?
- A. policing
- B. WRED
- C. RED
- D. shaping
Answer: D
NEW QUESTION # 65
A customer plans to deploy WoL in the enterprise with these high-level design requirements:
Which two solutions must the customer select to have a successful deployment? (Choose two.)
- A. IP helper-addresses for the WoL server must be enabled on the SVI or routed interface where the client subnets reside
- B. IP directed broadcast and forward-protocol must be enabled on all the SVI or routed interlaces where the client subnets reside.
- C. IP helper-addresses for the client ranges must be enabled on the SVI or routed interface where the WoL server subnet resides.
- D. IP directed broadcast and forward-protocol must be disabled on all the SVI or routed interfaces where the client subnets reside.
- E. IP helper-addresses for the client ranges must be disabled on the SVI or routed interface where the WoL server subnet resides
Answer: A,B
NEW QUESTION # 66
Refer to the exhibit. An engineer must ensure that the QoS design guarantees bandwidth for the applications, and an application can request a particular type of service to support its delay requirements. Which solution must the engineer select?
- A. IntServ with DSCP
- B. IntServ with RSVP
- C. Diffserv with RSVP
- D. Diffserv with DSCP
Answer: B
NEW QUESTION # 67
Drag and drop the model driven telemetry characteristics from the left onto the mode they belong to on the right.
Answer:
Explanation:
NEW QUESTION # 68
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 EF and map into Class1 with a minimum bandwidth assigned by reducing the bandwidth available to Class2.
- B. Mark the traffic with DSCP CS1 and map into Class2 with a minimum bandwidth assigned by reducing the bandwidth available to CIass3.
- C. Mark the traffic with DSCP CS6 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
Answer: A
NEW QUESTION # 69
Drag and Drop Question
Drag and drop the steps WAN Edge performs when on-boarded into the Cisco SD-WAN overlay from the left into the order they are completed on the right.
Answer:
Explanation:
NEW QUESTION # 70
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Cisco 300-420 Exam Topics:
| Section | Weight | Objectives |
|---|---|---|
| WAN for Enterprise Networks | 20% | -Compare WAN connectivity options
-Design site-to-site VPN
-Design high availability for enterprise WAN
-Describe Cisco SD-WAN Architecture (orchestration plane, management plane, control plane, data plane, on-boarding and provisioning, security) |
| Automation | 10% | - Choose the correct YANG data model set based on requirements -Differentiate between IETF, Openconfig, and Cisco native YANG models -Differentiate between NETCONF and RESTCONF -Describe the impact of model-driven telemetry on the network
-Compare dial-in and dial-out approaches to model-driven telemetry |
| Network Services | 20% | -Select appropriate QoS strategies to meet customer requirements (DiffServ, IntServ) -Design end-to-end QoS policies
-Design network management techniques
-Describe multicast routing concepts (source trees, shared trees, RPF, rendezvous points) |
Cisco 300-420 exam is designed to assess the candidate’s knowledge of enterprise network design principles, theories, and best practices. 300-420 exam covers a wide range of topics such as advanced routing protocols, WAN technologies, virtualization, network automation, security, and network services. 300-420 exam is designed to test the candidate’s skills in designing, implementing, and troubleshooting complex enterprise networks.
Cisco 300-420 exam is a vendor-neutral certification that is recognized globally. Designing Cisco Enterprise Networks certification is an excellent way for IT professionals to demonstrate their expertise in network design and implementation using Cisco technologies. 300-420 exam is also an excellent way for IT professionals to advance their careers and increase their earning potential.
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