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Exam 300-420 is suitable for system administrators, network engineers, and networking design engineers. All in all, there are several knowledge areas that you need to have a deep understanding of in order to pass such a test successfully. Thus, you should be familiar with the following:
The most important information to look for after knowing that you qualify for such an exam is the skills measured. Generally, it is usually stated clearly through the topics covered. For this test, the main objectives are network services, advanced enterprise networks, automation, advanced addressing and routing solutions, network services, as well as WAN for enterprise networks. The exam format is another detail that you need to know about. Overall, there will be 60 multiple-choice questions, which you should complete within 90 minutes. You will certainly be able to answer all of them and get more than 825 points if you prepare wisely. Therefore, consider going for the official training and other prep resources, such as study guides, videos, and sample questions. To sit for this test, you need to pay $300 for the voucher. Also, please note that you can take it in English or Japanese. After you pass 300-420, you will get one of the Specialist certificates and the CCNP Enterprise if you take the Cisco 350-401 as well. However, you should understand that these are not lifetime certificates. They will be valid for only 3 years. After this period, you will be required to recertify to gain the desired benefits. There are a number of ways to follow this process. You can do so by taking the necessary exams or completing education activities. What is more, you can also do a combination of both.
To prepare for the Cisco 300-420 Certification Exam, candidates can take various training courses offered by Cisco, such as the Designing Cisco Enterprise Networks (ENSLD) training course. Candidates can also use study materials such as practice exams, study guides, and online resources to prepare for the exam.
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This section makes up 10% of the whole content and requires that the students possess an understanding of the following processes:
NEW QUESTION # 368
Which AES mode should be used in a Cisco SD-WAN environment that includes multicast applications?
Answer: C
Explanation:
AES Galois/Counter Mode is the appropriate AES mode for Cisco SD-WAN environments that include multicast applications. In SD-WAN data-plane security, encryption must protect traffic efficiently while supporting high-throughput forwarding and modern integrity protection. AES-GCM is an authenticated encryption mode, which means it provides confidentiality and integrity in a single efficient operation. It is well suited to modern IPsec designs and avoids the older requirement to combine a confidentiality mode with a separate authentication algorithm. Cipher Block Chaining and Cipher Feedback are older modes and are not preferred for this design requirement. Electronic Code Book is unsuitable because it exposes patterns in plaintext and is not considered secure for network transport encryption. Multicast support also requires a data- plane security model that can scale without per-flow negotiation overhead. AES-GCM is therefore the correct selection for a secure, efficient Cisco SD-WAN deployment that must carry multicast traffic. Reference topics: Cisco SD-WAN encryption, AES-GCM, IPsec data-plane security, multicast transport, authenticated encryption.
NEW QUESTION # 369
Which is a function of the Proactive Insights feature of Cisco DNA Center Assurance?
Answer: A
NEW QUESTION # 370
An engineer is designing a PIM Anycast RP solution between two data centers. The design must ensure that RP1 in DC1 and RP2 in DC2 inform each other about specific sources that have joined locally. Which solution must the engineer choose?
Answer: B
Explanation:
Explanation
In Anycast RP, two or more RPs are configured with the same IP address on loopback interfaces. The Anycast RP loopback address should be configured with a 32-bit mask, making it a host address. All the downstream routers should be configured to "know" that the Anycast RP loopback address is the IP address of their local RP. IP routing automatically will select the topologically closest RP for each source and receiver.
MSDP used for Anycast RP is an intradomain feature that provides redundancy and load-sharing capabilities.
Enterprise customers typically use Anycast RP for configuring a Protocol Independent Multicast sparse mode (PIM-SM) network to meet fault tolerance requirements within a single multicast domain.
https://www.cisco.com/c/en/us/td/docs/ios/solutions_docs/ip_multicast/White_papers/anycast.html#wp1029118
https://www.cisco.com/c/en/us/support/docs/ip/ip-multicast/115011-anycast-pim.html
" You need to have a loopback on each prospective RP router, which is different than the loopback that is being used as the RP address."
NEW QUESTION # 371
How is end-to-end microsegmentation enforced in a Cisco SD-Access architecture?
Answer: C
Explanation:
End-to-end microsegmentation in Cisco SD-Access is enforced with Security Group Tags and Security Group ACLs. Virtual networks provide macrosegmentation by separating routing tables and address spaces, but SGTs provide more granular group-based policy inside or across those virtual networks. Cisco SD-Access segmentation guidance explains that users or endpoints are assigned to security groups through SGTs and that SGACLs control communication between those groups. This avoids building large numbers of VLANs or IP ACLs tied to topology. VLANs alone provide Layer 2 separation but do not deliver identity-based end-to-end microsegmentation. Five-tuple ACLs can filter traffic, but they are more operationally complex and less policy-oriented than group-based access control. VRFs are useful for macrosegmentation, not microsegmentation within a virtual network. Therefore, SGTs and SGACLs are the correct enforcement method. In a professional design, the architect should define scalable groups according to business roles and application access needs, then use Cisco DNA Center and ISE integration to automate consistent policy deployment across the fabric.
NEW QUESTION # 372
Drag and Drop Question
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.
Reference:
https://www.cisco.com/c/en/us/td/docs/iosxr/asr9000/telemetry/b-telemetry-cg-asr9000-61x/b- telemetry-cgasr9000-61x_chapter_010.html#id_36445
NEW QUESTION # 373
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