Cisco 300-420 Practice Exams
Last updated on Apr 01,2025- Exam Code: 300-420
- Exam Name: Designing Cisco Enterprise Networks (ENSLD)
- Certification Provider: Cisco
- Latest update: Apr 01,2025
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.
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 . Increase the hello timers on both HSRP devices
- B . Use the preempt delay feature on the primary HSRP device.
- C . Use the preempt delay feature on the backup HSRP device
- D . Configure a higher mac-refresh interval on both HSRP devices
Since installing a cisco TelePresence system, the company is experiencing other application having response issues when the system in use. As a result, the company asked an architect to recommend a QoS solution. The customer is currently using a CBWFQ policy to manage traffic on an internet connection with a speed of 100 Mbps.
Which link-capacity limit must the architect choose for strict-priority for the real-time traffic?
- A . 25 Mbps
- B . 50 Mbps
- C . 33 Mbps
- D . 75 Mbps
Refer to the exhibit.
An architect reviews the low-level design of a company’s enterprise network and advises optimizing the STP convergence time.
Which functionality must be to Gi1/0/1-10 to follow the architect’s recommendation?
- A . PortFast
- B . root guard
- C . UplinkFast
- D . BPDU guard
Refer to the exhibit.
The failover time of ISP-2 is significantly shorter than ISP-1 when an interface on the ISP router toward the campus network fails.
Which solution minimizes the downtime to the sub-second?
- A . Aggressive timers
- B . Next-hop address tracking
- C . Graceful-restart
- D . BFD
How are wireless endpoints registered in the HTDB in a Cisco SD-Access architecture?
- A . Fabric edge nodes update the HTDB based on CAPPWAP messaging from the AP
- B . Fabric WLCs update the HTDB as new clients connect to the wireless network
- C . Border nodes first register endpoints and then update the HTDB
- D . Fabric APs update the HTDB with the clients’ ElD and RLOC
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
A global organization with several branches hired a network architect to design an overlay VPN solution. The branches communicate with each other frequently. The customer expects to add more branches in the future. To meet the customer’s security requirements, the architect plans to provide traffic protection using dynamic IPsec tunnels.
Which solution should the architect choose?
- A . DMVPN
- B . EasyVPN
- C . GETVPN
- D . L2TP
Which feature must be incorporated into the campus LAN design to enable Wake on LAN?
- A . dynamic ARP Inspection Snooping on layer 2 devices
- B . directed broadcasts on layer 3 devices
- C . proxy ARP on layer 3 devices
- D . DHCP Snooping on layer 2 devices
An engineer is designing a campus network with Cisco Catalyst 95CO switches in the aggression layer. The design requires running nonblocking Layer 2 MEC from the aggregation layer to the access layer. The Catalyst switches are located on different campus floors for availability reasons, and each access switch veil contam a single VLAN.
Which technology must the engineer choose for the aggregation switches in the design?
- A . VPC
- B . VSS
- C . StackWise Virtual
- D . StackWise-180