2026年Xhs1991の最新300-420 PDFダンプおよび300-420試験エンジンの無料共有：https://drive.google.com/open?id=17cXTxH8tQUYlb10McqgWTTdvXhcKW_pm
「成功っていうのはどちらですか。」このように質問した人がいます。私は答えてあげますよ。Xhs1991を選んだら成功を選ぶということです。Xhs1991のCiscoの300-420試験トレーニング資料はIT認証試験を受ける全ての受験生が試験に合格することを助けるものです。この資料はCiscoの300-420試験のために特別に研究されたもので、受験生からの良い評価をたくさんもらいました。Xhs1991のCiscoの300-420試験トレーニング資料を選んだらぜひ成功するということを証明しました。
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Advanced Addressing and Routing Solutions | 25% | - IPv4 and IPv6 addressing design
|
| Topic 2: WAN for Enterprise Networks | 20% | - WAN connectivity options
|
| Topic 3: Advanced Enterprise Campus Networks | 25% | - Layer 2 campus design
|
| Topic 4: Security Services | 10% | - Security architecture design
|
| Topic 5: Network Services | 15% | - Multicast design - Quality of Service (QoS)
|
| Topic 6: Software-Defined Access (SDA) | 5% | - SD-Access architecture - Control plane and data plane design - Fabric design and deployment |
もし300-420認定試験を受験したいなら、300-420試験参考書が必要でしょう。ターゲットがなくてあちこち参考資料を探すのをやめてください。どんな資料を利用すべきなのかがわからないとしたら、Xhs1991の300-420問題集を利用してみましょう。この問題集は的中率が高くて、あなたの一発成功を保証できますから。ほかの試験参考書より、この問題集はもっと正確に実際問題の範囲を絞ることができます。こうすれば、この問題集を利用して、あなたは勉強の効率を向上させ、十分に300-420試験に準備することができます。
質問 # 173
An engineer is creating a design to enable IPv6 to run on an existing IPv4 IS-IS network. The IPv4 and IPv6 topologies will match exactly, and the engineer plans to use the same router levels for each protocol per interface. Which IS-IS design is required?
正解：B
解説：
Explanation
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_isis/configuration/15-mt/irs-15-mt-book/ip6-route-mu
質問 # 174
An engineer must design a solution to connect a customer to the Internet. The solution will include a Layer 3 circuit with a CIR of 50 Mbps from the service provider. The hand-off from the provider ' s switch to the customer ' s router is 1Gbps. Which solution should the engineer include to prevent potential issues with choppy voice traffic?
正解：C
解説：
Hierarchical QoS with a parent shaping policy is the correct solution for a 1 Gbps physical handoff where the contracted provider rate is only 50 Mbps. The customer router can transmit at the physical interface speed, but the provider policer or service edge expects traffic to remain within the committed information rate. Without shaping, bursts leave the customer router at 1 Gbps and can be dropped by the provider, which is especially damaging to voice traffic because drops and jitter create choppy audio. Cisco QoS design commonly uses a parent shaper set to the provider CIR and then applies child queuing policies under that shaped rate. This allows voice and other critical classes to be prioritized before packets are transmitted into the constrained service. A parent policing policy would drop or mark excess traffic locally rather than smoothing bursts.
Reducing physical bandwidth is not normally possible on a provider Ethernet handoff, and the interface bandwidth statement changes routing/QoS reference values but does not enforce the CIR. Therefore, parent shaping is required. Reference topics: hierarchical QoS, traffic shaping, CIR, LLQ, WAN edge QoS.
質問 # 175 
Refer to the exhibit. An architect is designing an IPv4 plan using the 172.16.0.0/16. The design must maximize the number of subnets while meeting these requirements:
* 500 hosts within the server room
* 100 hosts at the remote site
* 25 hosts at the access site
Which plan must the architect choose?
正解：B
解説：
The selected IPv4 plan is correct because the design must maximize the number of subnets while still meeting the host requirements for each location. With VLSM, the largest subnet must be allocated first. A segment requiring 500 hosts needs at least 9 host bits, because 2
ちなみに、Xhs1991 300-420の一部をクラウドストレージからダウンロードできます：https://drive.google.com/open?id=17cXTxH8tQUYlb10McqgWTTdvXhcKW_pm