まだどうのようにHuawei H19-404_V1.0資格認定試験にパースすると煩悩していますか。現時点で我々サイトTopexamを通して、ようやくこの問題を心配することがありませんよ。Topexamは数年にわたりHuawei H19-404_V1.0資格認定試験の研究に取り組んで、量豊かな問題庫があるし、豊富な経験を持ってあなたが認定試験に効率的に合格するのを助けます。H19-404_V1.0資格認定試験に合格できるかどうかには、重要なのは正確の方法で、復習教材の量ではありません。だから、TopexamはあなたがHuawei H19-404_V1.0資格認定試験にパースする正確の方法です。
| Section | Objectives |
|---|---|
| Huawei Campus Network Products and Solutions | - Campus Network Product Portfolio
|
| Campus SD-WAN Planning and Design | - SD-WAN Solutions
|
| Campus Network Security Design | - Security Planning
|
| CloudCampus and Intelligent Campus Solutions | - CloudCampus Architecture
|
| Industry Scenario Solution Design | - Industry-Oriented Campus Solutions
|
| Pre-sales Methodology and Solution Presentation | - Pre-sales Skills
|
| Campus Network Solution Architecture and Design | - Enterprise Campus Network Architecture
|
| Campus WLAN Planning and Design | - WLAN Technologies
|
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質問 # 32
On which public clouds can vCPEs be deployed in SD-WAN scenarios?
正解：A、B、D
解説：
In the product and course version covered by this examination, SD-WAN virtual CPEs can be deployed on AWS, Alibaba Cloud, and Microsoft Azure. A vCPE such as Huawei AR1000V provides SD-WAN routing functions as a virtual machine within a supported public-cloud infrastructure. It can connect enterprise branches to workloads hosted in the cloud and bring the cloud environment under the same controller-based management and policy-orchestration framework as physical CPEs.
This deployment provides one-hop cloud access, avoids unnecessarily routing cloud-bound traffic through a remote headquarters, and enables unified overlay networking between branches, data centers, and cloud virtual networks. Huawei states that the AR1000V virtual SD-WAN router can be deployed in public clouds to implement branch-to-cloud interconnection and unified policy orchestration. Huawei also describes flexible deployment of physical CPEs and vCPEs for cloud-access and PoP-based acceleration scenarios.
Huawei Cloud is not included in the supported public-cloud list represented by this specific H19-404 question. Product compatibility is version-dependent, so the correct examination answer is A, B, and C.
質問 # 33
What are the modes of the HSR RedBox?
正解：A、B、C、D
解説：
An industrial RedBox can provide all four listed interconnection modes. In HSR-SAN mode, it connects a singly attached node that does not natively support High-availability Seamless Redundancy to an HSR network. The RedBox duplicates frames entering the HSR domain and removes duplicate frames before delivering traffic to the SAN.
HSR-PRP mode interconnects an HSR ring with a Parallel Redundancy Protocol network while preserving seamless redundancy. PRP-PRP mode couples two PRP network domains, while HSR-HSR mode connects separate HSR rings. Depending on the implementation, the HSR-HSR interconnection function may also be described as a QuadBox function because four HSR-facing ports can be involved.
The essential RedBox responsibilities are frame conversion, duplication, duplicate elimination, sequence- number handling, and prevention of unintended forwarding loops between redundancy domains. HSR and PRP use compatible duplicate-identification principles, enabling controlled interconnection between these network types without introducing a single point of failure. RedBoxes also provide redundant connectivity for devices that have only one ordinary Ethernet interface.
質問 # 34
Huawei provides an innovative technology that can maintain smooth video when traffic packet loss between enterprise branches reaches up to 20%. Which technology provides this capability?
正解：B
解説：
A-FEC, or Adaptive Forward Error Correction, is the correct technology. It protects delay-sensitive traffic by adding calculated redundant packets to the original packet stream. If some original packets are lost during WAN transmission, the receiving edge device can reconstruct them using the surviving original and redundant packets rather than waiting for end-to-end retransmission.
The key distinction between ordinary FEC and A-FEC is adaptation. With A-FEC, the receiving device reports real-time packet-loss and continuous-loss information to the transmitting device through FEC acknowledgement messages. The transmitting edge then dynamically increases or decreases the redundancy ratio according to actual network conditions. This provides stronger recovery during severe loss while avoiding unnecessary bandwidth overhead when link quality improves. Huawei describes this feedback- controlled adjustment as a mechanism that can alleviate or eliminate the impact of packet loss.
IFIT and IPCA are primarily measurement and service-quality analysis technologies; they do not reconstruct lost video packets. Fixed FEC does not adapt its redundancy level as effectively to changing loss conditions.
Therefore, the technology intended for smooth video under packet loss of up to 20% is A-FEC.
質問 # 35
Which of the following statements is true about MACsec?
正解：D
解説：
Hardware-based encryption is the unambiguously correct statement. MACsec protects Ethernet frames at Layer 2 using AES-GCM-based authenticated encryption. On enterprise switches and routers, the encryption and integrity operations are commonly implemented in forwarding ASICs or dedicated hardware so that frames can be protected at high throughput with low latency.
Option A is incorrect because complex manual configuration is not an inherent requirement. MACsec can use manually configured connectivity-association keys, but IEEE 802.1X MACsec Key Agreement can automate peer authentication, secure-channel establishment, key distribution, and rekeying. The operational complexity therefore depends on the deployment model and management platform.
Option C is also inaccurate. MACsec is media-independent, meaning it can operate over supported copper or fiber Ethernet; however, it does not eliminate the requirement for appropriate Layer 2 connectivity between participating MACsec entities. Standard hop-by-hop MACsec protects Ethernet links or LAN connectivity between peers and is not a general Layer 3 tunneling mechanism.
MACsec supplies Layer 2 confidentiality, integrity, origin authentication, and replay protection. Its encryption can be performed directly in network-device hardware, enabling substantially better forwarding performance than software-only encryption implementations.
質問 # 36
It is recommended that policy association be deployed between the access and aggregation layers when distributed VXLAN gateways are used and VXLAN is deployed across the core and aggregation layers.
正解：A
解説：
The statement is true. In this three-layer campus design, aggregation switches function as VXLAN edge nodes and distributed gateways, while access switches provide terminal connectivity. Policy association allows the access switches to participate in user admission and policy enforcement without requiring them to support full VXLAN functions.
The access switch collects terminal access information and associates user traffic with the appropriate service or policy. The aggregation switch, acting as the fabric edge and VXLAN tunnel endpoint, performs VXLAN encapsulation, distributed gateway forwarding, and policy-related operations. Huawei specifically states that when aggregation switches operate as edge nodes, access switches do not need to support VXLAN and can cooperate with aggregation switches through policy association. This also permits legacy access switches to be reused.
The design reduces upgrade costs and avoids extending complex overlay configurations to every access device. Huawei's automated virtual-network deployment model also explicitly includes policy association between the aggregation and access layers, allowing access switches without VXLAN capability to operate as transparent or associated access nodes. Therefore, option A is correct.
質問 # 37
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H19-404_V1.0合格内容: https://www.topexam.jp/H19-404_V1.0_shiken.html