Designing Cisco Enterprise Networks Practice Tests 2026 | Pass 300-420 with confidence!
Practice CCNP Enterprise 300-420 exam. Online Exam Practice Tests with detailed explanations!
NEW QUESTION # 86
An engineer must design a routing solution for a company that is single-homed to an ISP. The company's goal is to run BGP between the CE and the PE devices. To support running BGP, the company obtained a public AS number and IP subnet from ARIN. Which solution must the engineer select?
- A. - The ISP announces the customer public IP subnet.
- The ISP announces the partial BGP table to the customer. - B. - The customer announces the public IP subnet to the ISP.
- The ISP announces the default route to the customer. - C. - The customer announces the public IP subnet to the ISP.
- The ISP announces the BGP table to the customer. - D. - The customer announces the default route to the ISP.
- The ISP announces the default route to the customer.
Answer: B
NEW QUESTION # 87
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 # 88
Drag and Drop Question
Drag and drop the descriptions from the left onto the corresponding VPN types on the rights.
Answer:
Explanation:
NEW QUESTION # 89
A company uses cloud-based applications for voice and video calls, file sharing, content sharing, and messaging. During business hours, these applications randomly become slow and unresponsive. However, other applications work smoothly with the current applied QoS polices. Which solution must the company choose to resolve the issue?
- A. Identify the application ports, create groupings, and rate-limit the required bandwidth.
- B. Identify the port used by each application and apply a minimum bandwidth guarantee.
- C. Identify the applications and reserve the required bandwidth on the perimeter routers.
- D. Identify the applications with NBAR2 and allocate the required bandwidth accordingly.
Answer: D
Explanation:
Explanation
using NBAR to identify application and bandwidth usage, then adjust existing QoS polices would be a more simple option. Of course, B is still ok if the network admin know all traffic and bandwidth consumption by other tools, say netflow.https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/qos_nbar/configuration/15-mt/qos-nbar-15-mt-book/n
https://www.cisco.com/c/en/us/products/ios-nx-os-software/network-based-application-recognition-nbar/index.h
NEW QUESTION # 90
How does a model-driven telemetry dial-out approach function?
- A. The device initiates a session to the collector based on the subscription.
- B. The collector initiates a session to the device and subscribes to data to be streamed.
- C. The collector initiates a session to the device and gets the data of a previously defined subscription.
- D. The device initiates a session to the collector and negotiates a subscription.
Answer: A
NEW QUESTION # 91
Prior to establishing full-mesh iPsec tunnels in a typical Cisco SD-WAN deployment, which mechanism do WAN Edge routers use to exchange Key information for data plane encryption?
- A. They use vSmart controllers as key exchange servers.
- B. They use IKEv2 when exchanging keys with each other.
- C. They use vManage as a key exchange server.
- D. They use vBond as a key exchange server.
Answer: A
NEW QUESTION # 92
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 Network Data Platform
- B. Cisco TrustSec
- C. Cisco Identity Services Engine
- D. Cisco Application Policy Infrastructure Controller Enterprise Module
Answer: B
Explanation:
Section: Advanced Enterprise Campus Networks
NEW QUESTION # 93
An engineer must use YANG with an XML representation to configure a Cisco IOS XE switch with these specifications:
* IP address 10.10.10.10/27 configured on the interface GigabitEthernet2/1/0
* connectivity from a directly connected host 10.10.10.1/27
Which YANG data model set must the engineer choose?
- A.
- B.
- C.
- D.
Answer: D
NEW QUESTION # 94
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 # 95
A network engineer prepares a script to configure a loopback interface with IP address
172.16.15.12/32. To comply with the company security policies, 'Content-type': 'application/yang- data+json' is added to the script. Connection to the network devices must be secured. Which code snippet must the network engineer use to meet this requirement?
- A.
- B.
- C.
- D.
Answer: D
NEW QUESTION # 96
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. down bit
- B. route tags
- C. split horizon
- D. summarization
Answer: B
Explanation:
https://www.ciscopress.com/articles/article.asp?p=1763921&seqNum=5
NEW QUESTION # 97
Refer to the exhibit.
Refer to the exhibit. An architect must design a solution to connect bank site A with bank site B and support:
network operation center monitoring end-to-end L3VPN and L2VPN traffic
company adding thousands of routes in the next two years
Which two BGP solutions must the design include? (Choose two.)
- A. Apply BGP policies on all routers to filter out ABR and PE loopback IP addresses.
- B. Transport site routes using a BGP VPNv4 address family on the PE routers.
- C. Establish full mesh IBGP peering with ail routers in different IGP domains.
- D. Redistribute different IGP domain routes in a BGP IPv4 routing instance.
- E. Connect multiple IGP'LDP domains using a BGP IPv4 unicast family on the ABR.
Answer: B,C
NEW QUESTION # 98
An engineer is working for a large cable TV provider that requires multiple sources streaming video on different channels using multicast with no rendezvous point. Which multicast protocol meets these requirements?
- A. PIM-SM
- B. PIM-SSM
- C. any-source multicast
- D. BIDIR-PIM
Answer: D
Explanation:
Section: Network Services
NEW QUESTION # 99 
Refer to the exhibit. A customer experienced an unexpected network outage when the link between R1 and R2 went down. An architect must design a solution to ensure network continuity in the event the link fails again.
Which solution should the design include?
- A. Make R11 an L2 router.
- B. Make Area 0 L2-only
- C. Make R31 an L1 router.
- D. Make R3 an L1L2 router
Answer: D
NEW QUESTION # 100
Refer to the exhibit.
A network engineer must design a multicast solution based on:
* Many-to-many communications between the users and sources
* Support of up to 50 multicast sources
* Users that must register for steams
Which multicast solution must the engineer select?
- A. Source-Specific Multicast
- B. Any Source Multicast
- C. Bidirectional PIM
- D. Multicast VPN
Answer: C
NEW QUESTION # 101
A company requested that an architect propose a new IPv4 and IPv6 deployment strategy. The company wants a solution that is straightforward, with no information hiding or forwarding overhead. Which solution meets these requirements?
- A. dual-stack
- B. NAT64
- C. GRE tunnels
- D. LISP
Answer: A
NEW QUESTION # 102
Refer to the exhibit. A network engineer must design a BGP solution based on:
- The route reflector must have one or more direct physical connections to the core routers (R3 and R4).
- The route reflector must have full redundancy and avoid a single
point of failure.
- R2 to R1 link utilization is 90%, and the remaining links are less
than 50% utilized.
Which two solutions must the design include? (Choose two.)
- A. Configure R2 to be a client of R1 and R4.
- B. Configure R3 to be a client of R2 and R4.
- C. Configure R5 to be a client of R3 and R4
- D. Configure R4 to be a client of R1 and R3.
- E. Configure R1 to be a client of R2 and R4.
Answer: B,D
Explanation:
We want to try and centralize our Route Reflector, in this example all routers qualify to be Route Reflectors because they have at least 1 link connected to R3/R4 the core Routers.
- We want to try avoid link between R1 and R2 because it's caping at 90%.
- Answer A uses the link that's 90%
- Answer B is not a centralize location, R5 is way down there.
- Answer C utilize the link that's at 90%
- D & E both have redundancy and do not use the link that has 90% and it's centralized.
NEW QUESTION # 103
You need to connect sites that are 8 kilometers apart by using fiber. Which media do you recommend?
- A. 10GBASE-T
- B. 10GBASE-LR
- C. 10GBASE-SR
- D. 10GBASE-ER
Answer: B
NEW QUESTION # 104
Drag and drop the elements from the left onto the functions they perform in the Cisco SD-WAN architecture on the right.
Answer:
Explanation:
Explanation
Table Description automatically generated
NEW QUESTION # 105
A company uses cloud-based applications for voice and video calls, file sharing, content sharing, and messaging. During business hours, these applications randomly become slow and unresponsive. However, other applications work smoothly with the current applied QoS polices. Which solution must the company choose to resolve the issue?
- A. Identify the application ports, create groupings, and rate-limit the required bandwidth.
- B. Identify the port used by each application and apply a minimum bandwidth guarantee.
- C. Identify the applications and reserve the required bandwidth on the perimeter routers.
- D. Identify the applications with NBAR2 and allocate the required bandwidth accordingly.
Answer: D
Explanation:
using NBAR to identify application and bandwidth usage, then adjust existing QoS polices would be a more simple option. Of course, B is still ok if the network admin know all traffic and bandwidth consumption by other tools, say netflow. https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/qos_nbar/configuration/15-mt/qos- nbar-15-mt-book/nbar-protocl-discvry.html#GUID-ED1AEDA1-AE69-45C3-A77E-2AF881CA9C36
https://www.cisco.com/c/en/us/products/ios-nx-os-software/network-based-application-recognition-nbar
/index.html
NEW QUESTION # 106 
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 access layer switches to summarize routes to the distribution layer.
- B. Configure core layer switches as stub routers.
- C. Configure access layer switches as stub routers.
- D. Configure distribution layer switches to summarize routes to the core layer.
- E. Configure access layer and core layer switches as stub routers.
Answer: C,D
NEW QUESTION # 107
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