Verified 300-420 dumps Q&As - Pass Guarantee Exam Dumps Test Engine [2025]
300-420 dumps and 341 unique questions
Cisco 300-420 exam, also known as Designing Cisco Enterprise Networks, is a certification exam that validates the knowledge and skills of IT professionals in designing enterprise networks using Cisco technologies. 300-420 exam is intended for network designers, architects, and engineers who are responsible for designing and implementing complex enterprise networks.
Cisco 300-420 exam is an essential certification for network professionals who are responsible for designing and implementing enterprise networks. 300-420 exam is a part of the Cisco Certified Design Professional (CCDP) certification, which is a globally recognized certification for network designers. The CCDP certification validates the skills required to design and implement complex network solutions in an enterprise environment.
NEW QUESTION # 80
An architect is designing how the company will manage the infrastructure of a large data center.
The company wants to group device types for security reasons and mitigate DoS attacks. The company also wants to ensure that access to the rest of the production network is not possible if one device is compromised on the management plane. Which solution must the architect choose?
- A. in-band Ethernet
- B. in-band dial-up circuit
- C. out-of-band dial-up circuit
- D. out-of-band Ethernet
Answer: D
NEW QUESTION # 81
A packet sent to a multicast address reaches what destinations?
- A. Reserved global destinations
- B. All hosts
- C. The nearest destination in a set of hosts
- D. All destinations in a set of hosts
Answer: D
NEW QUESTION # 82
A company's branch location uses redundant routers and links for connectivity to the headquarters. Also, to use the entire available bandwidth, the branch uses a dynamic routing protocol. An architect must design a multicast streaming solution to avoid RPF check failures because of the current network design. Which deployment model must the architect choose?
- A. BIDIR-PIM
- B. PIM-SM
- C. PIM-SSM
- D. PIM-BSR
Answer: A
NEW QUESTION # 83 
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. Diffserv with RSVP
- B. IntServ with RSVP
- C. Diffserv with DSCP
- D. IntServ with DSCP
Answer: B
NEW QUESTION # 84
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 traffic is transported in the overlay and the EID space for wired and wireless clients.
- C. Multicast clients reside in the underlay, and the multicast source is outside the fabric or in the overlay.
- D. Rendezvous points must be used in a PIM SSM deployment.
Answer: C
NEW QUESTION # 85
A customer requires QoS to support multimedia conferencing over MPLS. The network architect chooses to use per-hop behavior. Which solution must the architect use to classify and mark traffic traveling between branch sites?
- A. BW Queue and DSCP WRED with DSCP AF4
- B. BW Queue with DSCP AF4
- C. BW Queue with DSCP AF3
- D. BW Queue and DSCP WRED with DSCP AF3
Answer: B
NEW QUESTION # 86
A client is moving to Model-Driven Telemetry and requires periodic updates. What must the network architect consider with this design?
- A. Periodic updates include a full copy of the data that is subscribed to.
- B. Updates that contain changes within the data are sent only when changes occur.
- C. Empty data subscriptions do not generate empty update notifications.
- D. The primary push update is sent immediately and cannot be delayed.
Answer: A
Explanation:
Explanation
Periodic updates contain a full copy of the subscribed data element or table for all supported transport protocolshttps://www.cisco.com/c/en/us/td/docs/ios-xml/ios/prog/configuration/166/b_166_programmability_cg/
NEW QUESTION # 87
Which two routing protocols allow for unequal cost load balancing? (Choose two.)
- A. BGP
- B. EIGRP
- C. OSPF
- D. RIPng
- E. IS-IS
Answer: A,B
Explanation:
Section: Advanced Addressing and Routing Solutions
NEW QUESTION # 88
What are two characteristics of a migration from an IP-VPN service to a Cisco SD-WAN architecture? (Choose two.)
- A. centralized application policies
- B. increased security
- C. increased scalability
- D. increased solution complexity
- E. distributed control plane
Answer: A,C
NEW QUESTION # 89
Refer to the exhibit. The full EIGRP routing table is advertised throughout the network. Currently, users experience data loss when any one link in the network fails. An architect optimizes the network to reduce the impact when a link fails. Which solution should the architect include in the design?
- A. Summarize the access layer networks from the aggregation layer toward the core layer.
- B. Reduce the default EIGRP hello interval and hold time.
- C. Summarize the access layer networks from each access layer switch toward the aggregation layer.
- D. Run BFD on the inter links between EIGRP neighbors.
Answer: D
NEW QUESTION # 90
In a cisco SD-Access brownfield deployment scenario, which configuration deployment must be taken with Cisco DNA center?
- A. LAN automation
- B. Automated UNDERLAY
- C. Subnet stretching
- D. Manual underlay
Answer: A
NEW QUESTION # 91
Which design consideration must be made when using IPv6 overlay tunnels?
- A. Overlay tunnels can be configured only between border devices and require only the IPv6 protocol stack.
- B. Overlay tunnels that connect isolated IPv6 networks can be considered a final IPv6 network architecture.
- C. Overlay tunneling encapsulates IPv4 packets in IPv6 packets for delivery across an IPv6 infrastructure.
- D. Overlay tunnels should only be considered as a transition technique toward a permanent solution.
Answer: D
Explanation:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/interface/configuration/xe-3s/ir-xe-3s-book/ip6-ip4-gre-tunls-xe.pdf
NEW QUESTION # 92
An engineer must design an addressing plan for a small business using a single /24 network. Each department must have its own subnet. Drag and drop the subnets from the left onto the departments requirements that they fulfill on the right. Not all options are used.
Answer:
Explanation:
NEW QUESTION # 93
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 guard
- B. BPDU Skew Detection
- C. loop guard
- D. root guard
Answer: D
NEW QUESTION # 94
Which control-plane technology allows the same subnet to exist across multiple network locations?
- A. FabricPath
- B. LISP
- C. VXLAN
- D. ISE mobility services
Answer: B
Explanation:
Explanation
https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Campus/cisco-sda-design-guide.html
NEW QUESTION # 95
Drag and drop the Cisco Catalyst SD-WAN components from the left to their definitions on the nght
Answer:
Explanation:
NEW QUESTION # 96
Drag and Drop Question
Drag and drop the characteristics from the left onto the YANG modules they describe on the right.
Not all options are used.
Answer:
Explanation:
NEW QUESTION # 97
A large chain of stores currently uses MPLS-based T1 lines to connect their stores to their data center. An architect must design a new solution to improve availability and reduce costs while keeping these considerations in mind:
- The company uses multicast to deliver training to the stores.
- The company uses dynamic routing protocols and has implemented QoS.
- To simplify deployments, tunnels should be created dynamically on the hub when additional stores open.
Which solution should be included in this design?
- A. VPLS
- B. DMVPN
- C. IPsec
- D. GET VPN
Answer: B
Explanation:
DMVPN can be run over MPLS, with all the benefits of QoS. Under the hood, DMVPN is GRE with IPSEC, and GRE will deliver multicast.
NEW QUESTION # 98
Which consideration must be taken into account when using the DHCP relay feature in a Cisco SD-Access Architecture?
- A. DHCP Option-82 must be enabled to map the circuit IP option to the access fabric node where the DHCP discover originated.
- B. DHCP-relay must be enabled on fabric edge nodes to provide the correct mapping of DHCP scope to the local anycast gateway.
- C. A DHCP server must be enabled on the border nodes to allow subnets to span multiple fabric edges.
- D. DHCP servers must support Cisco SD-Access extensions to correctly assign IPs to endpoints in an SD-Access fabric with anycast gateway.
Answer: A
Explanation:
https://www.cisco.com/c/en/us/td/docs/cloud-systems-management/network-automation-and-management
/dna-center/tech_notes/sda_dhcp/b_cisco_sda_dhcp.html
NEW QUESTION # 99
Drag and drop the characteristics from the left onto the correct telemetry mode on the right.
Answer:
Explanation:
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.
NEW QUESTION # 100
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Cisco 300-420 (Designing Cisco Enterprise Networks) certification exam is a comprehensive exam that tests the knowledge and skills of network design engineers. 300-420 exam covers a wide range of topics related to enterprise network design and is intended for network architects, network designers, and network engineers. 300-420 exam is challenging and requires extensive preparation, but it is an important certification that can help candidates to advance their careers and increase their earning potential.
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