Cisco 300-420 Designing Cisco Enterprise Networks (ENSLD) Online Training
Cisco 300-420 Online Training
The questions for 300-420 were last updated at Oct 24,2025.
- Exam Code: 300-420
- Exam Name: Designing Cisco Enterprise Networks (ENSLD)
- Certification Provider: Cisco
- Latest update: Oct 24,2025
An engineer uses Postman and YANG to configure a router with:
Which get-config replay verifies that the model set was designed correctly?
- A . Option A
- B . Option B
- C . Option C
- D . Option D
An architect is creating a migration strategy for a large organization in which the choice made by the application between IPv6 and IPv4 is based on the DNS request.
Which migration strategy does the architect choose?
- A . AFT for public web presence
- B . host-initiated tunnels
- C . dual stack
- D . site-to-site IPv6 over IPv4 tunnels
Refer to the exhibit.
Area 10 is a regular OSPF area and networks 10.1.1.0/24 and 172.16.1.0/24 are internal.
Which design provides optimal routing between both networks when the link between routers C and E fails?
- A . Move the link between routers C and D to area 10.
- B . Create an OSPF virtual link between routers E and F.
- C . Create a tunnel between routers E and F in area 10.
- D . Make area 10 a not-so-stubby area.
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 Network Data Platform
- C . Cisco Identity Services Engine
- D . Cisco TrustSec
A company is planning to open two new branches and allocate the 2a01:c30:16:7009::3800/118 IPv6 network for the region. Each branch should have the capacity to accommodate maximum of 200 hosts.
Which two networks should the company use? (Choose two.)
- A . 2a01:0c30:0016:7009::3a00/120
- B . 2a01:0c30:0016:7009::3b00/121
- C . 2a01:0c30:0016:7009::3a80/121
- D . 2a01:0c30:0016:7009::3b00/120
- E . 2a01:0c30:0016:7009::3c00/120
A branch office has a primary L3VPN MPLS connection back to the main office and an IPSEC VPN tunnel that serves as backup.
Which design ensures that data is sent over the backup connection only if the primary MPLS circuit is down?
- A . Use EIGRP to establish a neighbor relationship with the main office via
- B . L3VPN MPLS and the IPSEC VPN tunnel.
- C . Use BGP with the multipath feature enabled to force traffic via the primary path when available.
- D . Use static routes tied to an IP SLA to prefer the primary path while a floating static route points to the backup connection.
- E . Use OSPF with a passive-interface command on the backup connection.
DRAG DROP
Drag and drop the descriptions from the left onto the categories they apply to on the right.
An engineer is looking for a standards-driven YANG model to manage a multivendor network environment.
Which model must the engineer choose?
- A . Native
- B . OpenConfig
- C . IETF
- D . IEEE NETCONF
A customer reports that each time a networking component fails, OSPF recalculates the backup path, with causes a short outage.
Which solution must the customer implement to improve this situation?
- A . Aggressive OSPF timers
- B . LFA FRR
- C . Incremental SPF
- D . BFD
DRAG DROP
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.
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