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Huawei H19-402_V1.0 certification exam is a 90-minute exam that consists of 60 multiple-choice questions. H19-402_V1.0 exam is available in both English and Chinese, and candidates must score at least 60% to pass the exam. HCSP-Presales-Data Center Network Planning and Design V1.0 certification is valid for three years, after which candidates must recertify to maintain their certification status. Overall, the Huawei H19-402_V1.0 Certification Exam is a valuable credential for IT professionals who are looking to advance their career in data center network planning and design.
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The Huawei H19-402_V1.0 exam consists of multiple-choice questions that cover various topics related to data center network planning and design. Candidates are required to have a good understanding of network design principles, network architecture, virtualization, storage networking, and security. They must also be familiar with industry best practices and standards related to data center network planning and design. With the Huawei H19-402_V1.0 Certification, you can demonstrate your expertise in these areas and take your career to the next level.
NEW QUESTION # 58
Which of the following statements is false about M-LAG and stacking?
Answer: B
Explanation:
The key difference between M-LAG and stacking in Huawei data center design lies in their control plane architecture and fault domains .
Option A is false because M-LAG does NOT have a centralized control plane . Instead, each device in an M- LAG pair maintains its own independent control plane , while synchronizing state information (such as MAC and ARP tables) over the peer-link. This distributed control design improves reliability and avoids a single point of failure.
Option B is correct : M-LAG involves two independent switches , both of which must be managed (though automation tools like iMaster NCE-Fabric simplify this).
Option C is correct : M-LAG provides fault domain isolation . A failure on one device does not impact the control plane of the other, enhancing network resilience.
Option D is correct : In contrast, stacking uses a single control plane , so upgrades can be more complex and potentially disruptive, affecting the entire stack.
Huawei best practices favor M-LAG over stacking in modern data centers due to its distributed control, higher reliability, and better fault isolation .
Therefore, the correct answer is A .
NEW QUESTION # 59
UPS5000-A can significantly reduce harmonic pollution to the power grid. Under linear full load conditions, what is the input current waveform distortion THDi?
Answer: B
NEW QUESTION # 60
Which of the following technologies can be used together with VXLAN to implement active-active access?
Answer: A,D
Explanation:
In Huawei CloudFabric VXLAN-based data center networks, active-active access is a key design goal to ensure high availability, load balancing, and optimal resource utilization.
M-LAG (C) is one of the primary technologies used to achieve active-active access at the access layer. It allows a server or downstream device to connect to two leaf switches simultaneously, both of which actively forward traffic. This eliminates single points of failure and ensures link redundancy with load sharing.
EVPN (D) , when used with VXLAN, provides the control plane for MAC/IP route distribution. It enables multi-homing and supports all-active forwarding , ensuring consistent forwarding decisions across the fabric.
EVPN also prevents loops and optimizes traffic forwarding using mechanisms like aliasing and mass withdrawal.
Smart Link (A) is typically used for primary/backup (active-standby) scenarios, not active-active. BFD (B) is a fast fault detection protocol and does not provide active-active forwarding capability.
Huawei best practices recommend combining VXLAN + EVPN + M-LAG to achieve highly reliable, scalable, and active-active data center access architectures .
Therefore, the correct answers are C and D .
NEW QUESTION # 61
How many power modules does the FusionModule2000 integrated UPS50K model support at most?
Answer: C
NEW QUESTION # 62
The national public security department will establish three levels of cloud computing centers at the ministry, provincial and municipal levels.
Answer: A
NEW QUESTION # 63
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