Cisco 300-420 Practice Test - Quick Tips To Pass (2026)

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Cisco 300-420 Exam Tests candidates on their knowledge and skills in designing and deploying advanced routing and switching technologies, including Cisco Enterprise Campus Architecture, Software-Defined Access (SDA) and Wireless, Network Services, and Network Security. These skills are crucial for network professionals who want to advance their careers and take on more challenging roles in designing and managing complex enterprise networks.

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New 300-420 Exam Duration & Visual 300-420 Cert Test

The Cisco 300-420 certification exam is an industrial-recognized Designing Cisco Enterprise Networks (300-420) certificate that is designed to validate candidates' skills, experience, and knowledge quickly. The Designing Cisco Enterprise Networks (300-420) certification exam has been inspiring Cisco professionals since its beginning. Now this 300-420 certification exam has become solid proof of certain skills set and knowledge.

Cisco 300-420 (Designing Cisco Enterprise Networks) Exam is a certification exam that focuses on designing complex enterprise networks. Enterprise networks are critical to the success of any organization, and 300-420 exam validates the knowledge and skills required to design and implement them. Passing 300-420 Exam will demonstrate your ability to design solutions that meet the needs of modern enterprise networks, including security, automation, and scalability.

Cisco Designing Cisco Enterprise Networks Sample Questions (Q278-Q283):

NEW QUESTION # 278
A network engineer is redesigning a company's QoS solution. The company is currently using IP Precedence, but the engineer plans to move to DiffServ. It is important that the new solution provide backward compatibility with the current solution. Which technology should the design include?

A. class selector code points
B. expedited forwarding
C. default per hop behavior
D. assured forwarding

Answer: A

Explanation:
FiffServ is backward compatible with IP Precedence (Ip-Precedence uses the 3 most signifcant bits of the ToS byte, whereas Diffserve uses the fost significant six bits - which includ the ones from IP precedence).

NEW QUESTION # 279
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 # 280
Exhibit:

Refer to the exhibit. An engineer is designing a Layer 2 campus network. The design must support fast convergence and leverage as much bandwidth as possible between layers. Distribution switches do support VSS; unfortunately, not all routing protocols are available for use due to license limitations. Which solution must the engineer choose?

A. MEC
B. EtherChannel
C. RSTP
D. ECMP

Answer: A

NEW QUESTION # 281
Which queuing structure is used on SD-WAN Edge routers?

A. LLQ+WFQ
B. 1P-4Q-2T
C. Priority
D. FIFO

Answer: A

Explanation:
Explanation
It uses a combination of low latency queuing (LLQ) and weighted fair queuing (WFQ) to prioritize critical traffic while still guaranteeing bandwidth for other traffic types. The LLQ portion of the queuing structure is used to prioritize certain types of traffic, while the WFQ portion is used to ensure that all traffic is serviced fairly. This queuing structure is used to make sure that critical traffic is not delayed or dropped, while still allowing for other traffic types to be serviced.

NEW QUESTION # 282
How are wireless endpoints registered in the HTDB in a Cisco SD-Access architecture?

A. Fabric WLCs update the HTDB as new clients connect to the wireless network
B. Fabric APs update the HTDB with the clients' ElD and RLOC
C. Fabric edge nodes update the HTDB based on CAPPWAP messaging from the AP
D. Border nodes first register endpoints and then update the HTDB

Answer: A

Explanation:

NEW QUESTION # 283
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P.S. Free 2026 Cisco 300-420 dumps are available on Google Drive shared by PrepAwayPDF: https://drive.google.com/open?id=195c6qZQ4zhOLLPNjxdwrKOdgz5KMaRoe