[Aug-2025] 100% Actual 300-420 dumps Q&As with Explanations Verified & Correct Answers
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Cisco 300-420 exam is an essential certification for network professionals who are responsible for designing and implementing enterprise networks using Cisco technologies. 300-420 exam covers a wide range of topics related to network design, including advanced routing and switching, network automation, security, and wireless networking. Passing the exam demonstrates a candidate's ability to design and implement complex enterprise networks using Cisco technologies.
Cisco 300-420 exam focuses on designing and implementing advanced enterprise network architectures using Cisco technologies. It covers topics such as network automation, virtualization, security, and network assurance. 300-420 exam consists of 60-70 questions and has a duration of 90 minutes. The questions are in various formats, including multiple-choice, drag-and-drop, and simulation.
NEW QUESTION # 66
An engineer must design a large Layer 2 domain that contains hundreds of switches and VLANs. The engineer's primary goals are to:
* Efficiently utilize the bandwidth of all links
* Avoid Layer 2 loops
* Cause minimal impact on switch CPU and memory
Which technology should the engineer include in the design?
- A. Rapid PVST+
- B. PVST+
- C. MST
- D. RSTP
Answer: C
NEW QUESTION # 67
What is the purpose of a control plane node in a Cisco SD-Access network fabric?
- A. to identify and authenticate endpoints within the network fabric
- B. to act as the network gateway between the network fabric and outside networks
- C. to detect endpoints in the fabric and inform the host tracking database of EID-to-fabric-edge node bindings
- D. to maintain the endpoint database and mapping between endpoints and edge nodes
Answer: C
Explanation:
https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Campus/cisco-sda-design-guide.html
NEW QUESTION # 68
Which two statements about VRRP object tracking are true? (Choose two)
- A. VRRP can track the status of interfaces and routes
- B. VRRP supports only interce tracking
- C. A VRRP group can track only one object at a time
- D. The VRRP interface priority must be manually configured by the administrator
- E. The priority of a VRRP device can change in accordance with the up or down status of a VRRP object
Answer: A,E
NEW QUESTION # 69
A company is running BGP on a single router, which has two connections to the same ISP. Which BGP feature ensures traffic is load balanced across the two links to the ISP?
- A. Multihop
- B. AS-Path Prepending
- C. Next-Hop Address Tracking
- D. Multipath Load Sharing
Answer: D
NEW QUESTION # 70
Refer to the exhibit.
A customer is running HSRP on the core routers. Over time the company has grown and requires more network capacity. In the current environment, some of the downstream interfaces are almost fully utilized, but others are not. Which solution improves the situation?
- A. Add more interfaces to R1 and R2.
- B. Configure port channel toward downstream switches.
- C. Enable RSTP on the downstream switches.
- D. Make router R2 active for half of the VLANs.
Answer: D
NEW QUESTION # 71
Drag and Drop Question
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 # 72
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 TrustSec
- C. Cisco Network Data Platform
- D. Cisco Identity Services Engine
Answer: B
Explanation:
Section: Advanced Enterprise Campus Networks
NEW QUESTION # 73
Refer to the exhibit.
Refer to the exhibit. A customer has two eBGP peerings from a single CE router toward two service providers. The customer has hired an architect to design a solution to ensure certain traffic enters the customer's network through interface gig0/0. Which solution must the architect include in the design?
- A. Advertise a lower MED value toward the less preferred service provider.
- B. Break aggregated routes into longer prefixes and advertise to the preferred service provider.
- C. Set a higher local preference to the preferred service provider path.
- D. Prepend additional AS on the AS path toward the preferred service provider.
Answer: A
NEW QUESTION # 74
When vEdge router redundancy is designed, which FHRP is supported?
- A. VRRP
- B. GLBP
- C. HSRP
- D. OMP
Answer: A
Explanation:
Section: Advanced Enterprise Campus Networks
NEW QUESTION # 75
In an SD-WAN architecture, which methods are used to bootstrap a vEdge router?
- A. DHCP options or manual configuration
- B. DNS records or DHCP options
- C. ZTP or manual configuration
- D. vManage or DNS records
Answer: C
Explanation:
https://www.cisco.com/c/dam/en/us/td/docs/solutions/CVD/SDWAN/sd-wan-wan-edge- onboarding-deploy-guide-2020jan.pdf
NEW QUESTION # 76
Drag and drop the characteristics from the left onto the configuration protocols they describe on the right.
Answer:
Explanation:
NEW QUESTION # 77
An engineer must propose a QoS architecture model that allows an application to inform the network of its traffic profile and to request a particular type of service to support its bandwidth and delay requirements. The application requires consistent and dedicated bandwidth end to end. Which QoS architecture model meets these requirements?
- A. WRED
- B. DiffServ
- C. LLQ
- D. IntServ
Answer: D
Explanation:
Explanation/Reference:
NEW QUESTION # 78
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 TrustSec
- C. Cisco Network Data Platform
- D. Cisco Identity Services Engine
Answer: B
NEW QUESTION # 79
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: 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 - B. 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 - C. 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 - D. 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
Answer: A
NEW QUESTION # 80
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 load-balances across the paths through R3 and R4 to reach R2
- C. R1 forwards the traffic to R3 in order to reach R2
- D. R1 has no route to R2 and drops the traffic
Answer: D
Explanation:
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-s
NEW QUESTION # 81
What is an advantage of using model-driven telemetry in the network?
- A. Telemetry obtains data by parsing the CLI output from show commands.
- B. It uses interrupt-driven polling to pull data at regular intervals.
- C. It uses MIB models to structure the data that are well known in the industry.
- D. It uses JSON encoding and is compatible with a wide variety of tools on the market.
Answer: D
NEW QUESTION # 82
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Cisco 300-420 exam, also known as Designing Cisco Enterprise Networks, is a certification exam designed for network professionals who want to prove their expertise in designing and implementing enterprise-level networks. 300-420 exam is one of the six concentration exams that candidates can choose to earn the Cisco Certified Network Professional (CCNP) Enterprise certification. The 300-420 exam focuses on the design and implementation of Cisco enterprise network architectures, including advanced routing and switching solutions, WAN technologies, network services, and security.
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