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Cisco 300-420 exam covers a wide range of topics related to network design, including advanced routing and switching technologies, security, virtualization, automation, and network assurance. Candidates are expected to have a deep understanding of network design principles and best practices, as well as the ability to apply this knowledge to real-world scenarios. Passing 300-420 exam demonstrates that the candidate has the skills and knowledge necessary to design and implement complex, scalable, and secure enterprise networks using Cisco technologies.
Cisco 300-420 Exam is a crucial certification exam for network engineers, architects, and designers who are responsible for designing and implementing complex enterprise networks. Designing Cisco Enterprise Networks certification validates your skills and knowledge in enterprise network design principles and best practices, as well as your expertise in advanced routing and switching technologies, network security, wireless technologies, and network automation.
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To successfully pass the Cisco 300-420 Certification Exam, candidates must have a solid understanding of Cisco enterprise network design principles, including network topology, routing protocols, and network security. Additionally, candidates must have hands-on experience with Cisco technologies, including Cisco DNA Center, virtualization technologies, and network automation tools. 300-420 exam consists of multiple-choice questions, simulations, and drag-and-drop exercises, and candidates are required to demonstrate their expertise in designing enterprise networks using Cisco technologies. Upon passing the exam, candidates will earn the Cisco Certified Design Professional (CCDP) certification, which is recognized globally as a symbol of expertise in enterprise network design.
NEW QUESTION # 263
The customer solution requires QoS to support streaming multimedia over a WAN. An architect chooses to use Per-Hop Behavior. Which solution should the engineer use to of mark traffic traveling between branch sites?
Answer: B
Explanation:
For streaming multimedia over a WAN using DiffServ per-hop behavior, the best answer is CBWFQ with DSCP AF3. Cisco QoS design separates real-time interactive voice from streaming multimedia. Voice bearer traffic commonly uses EF and a strict priority queue because it is extremely sensitive to delay and jitter.
Streaming multimedia, however, is usually buffered and bandwidth-intensive; it should receive assured bandwidth and controlled drop behavior rather than strict priority treatment. The Assured Forwarding classes are designed for this kind of preferential forwarding within DiffServ. AF3 is commonly associated with multimedia streaming in Cisco QoS baseline models, while CBWFQ provides bandwidth guarantees without allowing the class to starve other traffic. LLQ with EF is too aggressive for streaming multimedia and should be reserved for voice bearer traffic or similarly strict real-time flows. AF2 is more commonly used for transactional data or lower-priority assured service, depending on the model. The correct marking and queuing design is therefore CBWFQ with DSCP AF3. Reference topics: DiffServ, per-hop behavior, CBWFQ, DSCP AF classes, multimedia streaming QoS.
NEW QUESTION # 264
In a cisco SD-Access brownfield deployment scenario, which configuration deployment must be taken with Cisco DNA center?
Answer: A
NEW QUESTION # 265
Refer to the exhibit. Which route filtering technique is required within AS64514 to ensure that BGP prefixes originating locally are not accepted from AS64512 or AS64513?
Answer: B
Explanation:
Applying an inbound route-map with an as-path access-list that denies prefixes containing the local AS number ensures that routes originated by AS64514 are not accepted back from neighboring ASes, thus preventing routing loops and prefix duplication.
NEW QUESTION # 266
Which QoS feature responds to network congestion by dropping lower priority packets?
Answer: B
NEW QUESTION # 267 
Refer to the exhibit. An engineer is planning an IPv4 to IPv6 migration solution for a customer. The routers in the network can support IPv4 and IPv6, except for the DWDM routers. The DWDM routers provide a Layer 2 link in which the routers peer directly with each other across a DWDM circuit. The circuit also provides connectivity between the mail servers. Which IPv6 migration technique must the engineer deploy?
Answer: C
NEW QUESTION # 268
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