ActualCollection 300-420 Real Exam Question Answers Updated [Oct 28, 2025]
Easily To Pass New Cisco 300-420 Dumps with 341 Questions
Exam Policies for 300-420
There are some policies that one should know before going for the Cisco 300-420 exam. They will give you a clear idea as to the official requirements for those who can earn the certificates:
- Secondly, candidates between the ages of 13 and 17 are minors and must have prior consent from their parents or guardians to earn this certification.
- Finally, adults of age 18 and above can appear for the exams with no need for any permissions.
- Children under the age of 13 cannot apply for Cisco certifications even if they manage to get their parents' approval.
Cisco 300-420: Why?
For anyone who is trying to use Cisco products and solutions to build his/her career in the IT industry, becoming Cisco certified is the most appropriate thing to do. A lot of companies around the world, both big and small, are using the Cisco software and network equipment. No one can deny that Cisco products tend to be superior to the options of other competing organizations. What puts this provider at the top is the fact that it is consistently enhancing technology and adding improvements. The Cisco 300-420 is the perfect choice for those who are looking to pave their career towards enterprise design. Plus, passing this exam will give you an advantage over other applicants when looking for a job.
To prepare for the Cisco 300-420 exam, candidates can take advantage of the various resources provided by Cisco, such as online training courses, study guides, and practice exams. Hands-on experience with Cisco products is also an essential part of the preparation process. Passing the exam requires a score of at least 750 out of 1000, and the certification is valid for three years. Overall, the Cisco 300-420 certification is an excellent way for network engineers to demonstrate their expertise in designing complex enterprise networks and enhance their career prospects in the industry.
NEW QUESTION # 139
Drag and drop the characteristics from the left onto the YANG models they describe on the right. Not all options are used.
Answer:
Explanation:
Explanation
Diagram Description automatically generated
NEW QUESTION # 140
What is the purpose of service routes in OMP updates?
- A. indicate services that are enabled for service insertion
- B. describe underlay transport information
- C. specify routes toward a centralized orchestration plane
- D. define the remote management information
Answer: A
NEW QUESTION # 141
Which two activities should occur during an SE's discovery process? (Choose two.)
- A. Establishing credibility with the customer
- B. Gathering information about the current state of the customer s network environment
- C. Mapping Cisco innovation to customer s needs
- D. Working with the customer to develop a reference architecture
- E. Referencing the PPDIOO model to effectively facilitate the discussion
Answer: A,B
NEW QUESTION # 142
Refer to the exhibit. An architect must design a solution that uses the direct link between R1 and R2 for traffic from 10.10.10.0/24 toward network 10.10.20.0/24. Which solution should the architect include in the design?
- A. Place the link into area 2 and install a new link between R1 and R2 in area 0.
- B. Configure the link to provide multiarea adjacency.
- C. Lower the Administrative Distance for OSPF area 0.
- D. Configure the OSPF cost of the link to a value lower than 30.
Answer: B
Explanation:
OSPF first look at the prefered path list as below and secondly compare path metric:
Intra-Area (O)
Inter-Area (O IA)
External Type 1 (E1)
NSSA Type 1 (N1)
External Type 2 (E2)
NSSA Type 2 (N2)
So most appropriate answer is to configure R1-R2 link as multiarea adjacency.
under the interface configuration mode:
ip ospf network point-to-point
ip ospf multi-area 1
https://www.cisco.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/118879-configure- ospf-00.html
NEW QUESTION # 143
An engineer is designing a networking solution to allow two hosts to communicate-one host located within the company A network and the other within the company B network. The two companies have no other plans for future additional connections. Both companies want to use a single secure and encrypted internet connection, and the configuration must be as simple as possible. Which network solution must the engineer choose?
- A. policy-based IPsec tunnel with static routing
- B. single DMVPN with EIGRP routing
- C. routed IPsec tunnel with OSPF routing
- D. MPLS VPN provided service with BGP routing
Answer: A
NEW QUESTION # 144
Drag and Drop Question
Drag and drop the characteristics from the left onto the configuration protocols they describe on the right.
Answer:
Explanation:
NEW QUESTION # 145
Which control-plane technology allows the same subnet to exist across multiple network locations?
- A. VXLAN
- B. LISP
- C. ISE mobility services
- D. FabricPath
Answer: B
Explanation:
VXLAN is a data plane technology - LISP is control plane related.
https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Campus/cisco-sda-design-guide.html
NEW QUESTION # 146
Which nonproprietary mechanism can be used to automate rendezvous point distribution in a large PIM domain?
- A. Embedded RP
- B. Static RP
- C. BSR
- D. Auto-RP
Answer: C
NEW QUESTION # 147 
Refer to the exhibit. The distribution switches serve as the layer 3 boundary. HSRP preemption is enabled.
When the primary switch comes back after a failure, traffic is initially dropped. Which solution must be implemented to improve the design?
- A. Configure a higher mac-refresh interval on both HSRP devices
- B. Increase the hello timers on both HSRP devices
- C. Use the preempt delay feature on the backup HSRP device
- D. Use the preempt delay feature on the primary HSRP device.
Answer: D
NEW QUESTION # 148 
Refer to the exhibit. An engineer Is designing a multicampus Layer 3 Infrastructure using EIGRP as the routing protocol. The design must provide quick replies to queries In the event of a downlink, prevent unnecessary queries, and ensure that traffic does not unnecessarily transit the access layer. Which two actions must the engineer take for the network design? (Choose two.)
- A. Configure distribution layer switches to summarize routes to the core layer.
- B. Configure access layer switches as stub routers.
- C. Configure core layer switches as stub routers.
- D. Configure access layer and core layer switches as stub routers.
- E. Configure access layer switches to summarize routes to the distribution layer.
Answer: A,B
NEW QUESTION # 149
A network engineer must optimize a campus OSPF deployment Currently each time a type 1 or type 2 LSA is generated within an area, the OSPF process must recompute the entire SPT Which solution improves the recomputation process?
- A. PRC
- B. iSPF
- C. BFD
- D. SPF
Answer: C
NEW QUESTION # 150
An organization is designing a detailed QoS plan that limits bandwidth to specific rates. Which two parameters are supported be the traffic policing feature? (Choose two.)
- A. violating
- B. bursting
- C. shaping
- D. marking
- E. conforming
Answer: C,D
Explanation:
Section: Network Services
NEW QUESTION # 151
Drag and drop the Cisco Catalyst SD-WAN components from the left to their definitions on the nght
Answer:
Explanation:
NEW QUESTION # 152
A customer requested that a guaranteed service line be enabled for a manufacturing business in different countries. On the customer side, the QoS-aware application is used to process large data chunks. The application cannot tolerate drops and latency should be as low as possible. Which QoS model must an engineer employ to use the minimum required resources on the ISP network nodes?
- A. Enable a flow-based QoS strategy with queuing elements.
- B. Configure a domain-based QoS strategy with PHB behavior.
- C. Implement a group-based QoS strategy with FECs enabled
- D. Implement an end-to-end QoS strategy with SLA.
Answer: D
NEW QUESTION # 153
Which feature minimizes TLOC connections and reduces strain on the vSmart controller in an SD-WAN architecture?
- A. affinity
- B. control-connections
- C. color
- D. control-direction
Answer: A
NEW QUESTION # 154
Exhibit:
- A. Make R3 an L1L2 router.
- B. Make R11 an L2 router.
- C. Make Area 0 L2-only.
- D. Make R31 an L1 router.
Answer: A
Explanation:
Explanation
ENSLD 300-420 cert guide page 117. When creating a backbone there should never be L1 routers between (L2 only, or) L1/L2 routers.
NEW QUESTION # 155
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.
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 # 156
Drag and Drop Question
Drag and drop the characteristics from the left onto the telemetry mode they apply to on the right.
Answer:
Explanation:
NEW QUESTION # 157
Which two overlay network design considerations must be made for a Cisco SD-Access network? (Choose two.)
- A. Avoid overlapping IP subnets
- B. Dedicated IGP process for the fabric
- C. Layer 3 to the access design
- D. Reduce subnets and simplify DHCP management
- E. LAN automation for deployment
Answer: A,D
Explanation:
https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Campus/cisco-sda-design-guide.
html#Overlay_Network_Design
NEW QUESTION # 158
How many host addresses are available with a Class B network with the default mask?
- A. 65,534
- B. 64,QQQ
- C. 63,998
- D. 65,536
Answer: A
NEW QUESTION # 159
A customer plans to adopt distributed QoS in their enterprise WAN. The policy must allow for individual packet marking according to the type of treatment required and for forwarding based on hop-by-hop treatment locally defined on each device. Which technology must the customer select?
- A. Diffserv
- B. CBWFQ
- C. IntServ
- D. LLQ
Answer: A
NEW QUESTION # 160
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: B
Explanation:
Multicast traffic is transported in the overlay, in the EID space, for both wired and wireless clients.
https://www.ciscolive.com/c/dam/r/ciscolive/us/docs/2018/pdf/BRKEWN-2020.pdf
NEW QUESTION # 161
Which two overlay network design considerations must be made for a Cisco SD-Access network? (Choose two.)
- A. Avoid overlapping IP subnets
- B. Dedicated IGP process for the fabric
- C. Layer 3 to the access design
- D. Reduce subnets and simplify DHCP management
- E. LAN automation for deployment
Answer: A,D
Explanation:
Explanation
https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Campus/cisco-sda-design-guide.html#Overlay_Network_
NEW QUESTION # 162
Drag and drop the descriptions from the left onto the categories they apply to on the right.
Answer:
Explanation:
NEW QUESTION # 163
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