300-420資格受験料、300-420クラムメディア

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Cisco 300-420 Exam Syllabus Topics:

SectionWeightObjectives
Advanced Addressing and Routing Solutions25%- Routing protocol design
  • 1. EIGRP design
    • 2. IS-IS design
      • 3. OSPF design
        • 4. Route redistribution and filtering
          - IPv4 and IPv6 addressing design
          • 1. Route summarization and aggregation
            • 2. Structured addressing plans
              WAN for Enterprise Networks20%- WAN resiliency and high availability
              - VPN design
              • 1. Site-to-site VPN
                • 2. DMVPN, L2VPN, L3VPN
                  - WAN connectivity options
                  • 1. MPLS, Metro Ethernet, 4G/5G
                    • 2. SD-WAN architecture and design
                      Software-Defined Access (SDA)5%- SD-Access architecture
                      - Control plane and data plane design
                      - Fabric design and deployment
                      Advanced Enterprise Campus Networks25%- Layer 3 campus design
                      • 1. Virtualization and segmentation
                        • 2. Routing in campus infrastructure
                          - Layer 2 campus design
                          • 1. Spanning Tree Protocol optimization
                            • 2. Hierarchical architecture
                              • 3. VLAN and trunking design
                                - Wireless integration
                                Network Services15%- Quality of Service (QoS)
                                • 1. Classification and marking
                                  • 2. Policing, shaping, congestion management
                                    - IP services
                                    • 1. DHCP, DNS, NAT
                                      - Multicast design
                                      Security Services10%- Secure connectivity
                                      - Security architecture design
                                      • 1. Network segmentation
                                        • 2. Threat defense integration

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                                          Cisco Designing Cisco Enterprise Networks 認定 300-420 試験問題 (Q284-Q289):

                                          質問 # 284
                                          A customer is undergoing a WAN re-architecture and wants to design QoS policies for remote sites that have low bandwidth. What must be considered to have CBWFQ configured in the parent and child policies in an end-to-end QoS design?

                                          正解：C

                                          解説：
                                          Traffic shaping is required in the parent policy when hierarchical QoS uses CBWFQ in the child policy for low-bandwidth remote sites. In Cisco hierarchical QoS, the parent policy commonly shapes outbound traffic to the real available rate of the WAN service, especially when the physical interface speed is higher than the provider committed rate. The child policy then applies class-based queuing, such as CBWFQ and LLQ, inside the shaped rate. This structure creates an artificial congestion point on the router so the child queues can schedule packets predictably instead of allowing the provider to drop traffic after it exceeds the service rate.
                                          Policing in the child policy would drop excess packets and is not the normal prerequisite for nested CBWFQ.
                                          CBWFQ is supported in child policies within hierarchical designs, and parent shaping is the mechanism that makes the hierarchy effective. This is especially important on low-bandwidth WAN links where voice, video, and business-critical applications require deterministic treatment. Reference topics: hierarchical QoS, CBWFQ, parent shaping, child queuing, WAN QoS design.


                                          質問 # 285
                                          What is the purpose of a control plane node in a Cisco SD-Access network fabric?

                                          正解：B


                                          質問 # 286
                                          Which design consideration should be observed when EIGRP is configured on Data Center switches?

                                          正解：B

                                          解説：
                                          Section: Advanced Addressing and Routing Solutions


                                          質問 # 287

                                          Refer to the exhibit. An architect must design an IP addressing scheme for a multisite network connected via a WAN transit. The campus site must accommodate 12,000 devices and the branch sites must accommodate
                                          1,000 devices. Which address scheme optimizes network device resources, contains convergence events to the different blocks of the network, and ensures future growth of the network?
                                          * * Campus: 10.0.0.0/18
                                          * Branch1: 10.0.192.0/21
                                          * Branch2: 10.0.200.0/21
                                          * * Campus: 10.0.0.0/16
                                          * Branchi: 10.255.0.0/20
                                          * Branch2: 10.255.16.0/20
                                          * * Campus: 10.0.0.0/10
                                          * Branch1: 10.64.0.0/10
                                          * Branch2: 10.128.0.0/10
                                          * * Campus: 10.0.0.0/20

                                          正解：B


                                          質問 # 288
                                          Exhibit:

                                          正解：C

                                          解説：
                                          ENSLD 300-420 cert guide page 117. When creating a backbone there should never be L1 routers between (L2 only, or) L1/L2 routers.


                                          質問 # 289
                                          ......

                                          300-420「Designing Cisco Enterprise Networks」試験は簡単ではありません。専門的な知識が必要で、もしあなたはまだこの方面の知識を欠かれば、Pass4Testは君に向ける知識を提供いたします。Pass4Testの専門家チームは彼らの知識や経験を利用してあなたの知識を広めることを助けています。そしてあなたに300-420試験に関するテスト問題と解答が分析して差し上げるうちにあなたのIT専門知識を固めています。

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