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| Section | Weight | Objectives |
|---|---|---|
| Solution Promotion and Project Implementation | 15% | - Deployment guidance and acceptance criteria - Solution value analysis and competitive differentiation |
| Campus Network Technology Design | 25% | - WLAN planning, coverage and roaming design - QoS, security and high availability design - VLAN, IP addressing and routing design |
| Campus Network Planning and Design Fundamentals | 15% | - Network design principles and methodologies - Service requirements and demand analysis - Campus network architecture and evolution |
| Scenario-based Campus Network Design | 25% | - Small and medium-sized campus network design - Cloud-managed and virtualized campus network design - Large campus and multi-branch interconnection design |
| Huawei Campus Network Solutions and Products | 20% | - Xinghe Intelligent Campus Solution overview - iMaster NCE-Campus management platform - Switches, WLAN products and AR routers |
Huawei H19-404_V1.0認證考試是個機會難得的考試，它是一個在IT領域中非常有價值並且有很多IT專業人士參加的考試。通過Huawei H19-404_V1.0的認證考試可以提高你的IT職業技能。我們的Fast2test可以為你提供關於Huawei H19-404_V1.0認證考試的訓練題目，Fast2test的專業IT團隊會為你提供最新的培訓工具，幫你提早實現夢想。Fast2test有最好品質最新的Huawei H19-404_V1.0認證考試相關培訓資料，能幫你順利通過Huawei H19-404_V1.0認證考試。
問題 #16
What are the two IPsec data encapsulation modes?
答案：C,D
解題說明：
The two IPsec encapsulation modes are transport mode and tunnel mode. In transport mode, IPsec protects the upper-layer payload of the original IP packet while retaining the original IP header as the packet's outer header. It is commonly associated with end-to-end host communication, although it can also protect a GRE packet between tunnel endpoints.
In tunnel mode, IPsec protects the complete original IP packet and adds a new outer IP header containing the addresses of the IPsec peers. This mode is commonly used between security gateways, routers, or site-to-site VPN endpoints because the original source and destination information can be protected within the encrypted inner packet. RFC 4301 formally defines transport and tunnel as the two IPsec security-association modes.
AH and ESP are not encapsulation modes. They are IPsec security protocols. Authentication Header provides integrity and source authentication but not encryption. Encapsulating Security Payload can provide encryption, integrity, authentication, and anti-replay protection. Either protocol can conceptually operate in transport or tunnel mode, although ESP is overwhelmingly used for encrypted enterprise VPN and SD-WAN data channels.
問題 #17
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?
答案：A
解題說明：
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.
問題 #18
Which of the following WLAN networking solutions is recommended when there are 15,000 wireless terminals on the customer network?
答案：D
問題 #19
If multiple Internet links are available, these links cannot be prioritized and can only be load-balanced.
答案：B
解題說明：
The statement is false because Huawei SD-WAN supports both priority-based link selection and load balancing. Multiple Internet or WAN links do not have to be treated equally. An administrator can define a preferred or primary link and designate another link as secondary or backup according to application requirements, link quality, cost, bandwidth, or operational policy.
For delay- and packet-loss-sensitive services such as voice and video, a higher-quality link can be configured as the primary path and another link as the backup. If the primary link no longer satisfies the configured SLA thresholds, traffic can be dynamically switched to a better path. Huawei's material explicitly describes primary and secondary link selection based on SLA and also presents load-balancing-based steering as a separate option.
Load balancing is useful when an enterprise wants to utilize the bandwidth of multiple links concurrently.
Priority-based active/standby forwarding is preferable when one provider offers better quality or when one circuit should be reserved for critical services. Intelligent traffic steering can additionally consider application priority and current bandwidth utilization. Therefore, multiple links can be prioritized, load-balanced, or used in a policy-controlled combination, making option B correct.
問題 #20
Which of the following functions is supported by the AR6177?
答案：B
解題說明：
The distinguishing function supported by the AR6177 is VDSL. VDSL, or Very-high-bit-rate Digital Subscriber Line, enables a branch router to obtain WAN connectivity over existing copper telephone infrastructure. It is appropriate for small branches and distributed sites where Ethernet private lines, fiber, or mobile connections are unavailable or commercially impractical.
The AR6177 can terminate the VDSL access circuit and provide routing, NAT, DHCP, VPN, and other branch-gateway functions for the connected LAN. In this single-answer question, Wi-Fi and PoE are not the defining integrated capabilities of the AR6177 model. Similarly, the complete combination of IPS, antivirus, and URL filtering belongs to a security-enhanced product profile rather than the function used to distinguish the AR6177.
Huawei's campus design material recognizes DSL links as a specific WAN-access category and notes that deployments involving complex or low-speed links, including DSL, may require an appropriate branch-device deployment method. The model is therefore selected when direct VDSL-based WAN access is required.
Consequently, VDSL is the supported capability intended by this question, and option C is correct.
問題 #21
......
你的夢想是什麼？難道你不想在你的職業生涯中做出一番閃耀的成就嗎？肯定是想的吧。那麼，你就需要不斷提升自己，鍛煉自己。在IT行業中工作的你，通過什麼方法來實現自己的夢想呢？其中，參加IT認定考試並獲得認證資格，就是你提升自己水準的一種方式。現在，Huawei的H19-404_V1.0考試就是一個非常受歡迎的考試。那麼，你也想拿到這個考試的認證資格嗎？那麼趕緊報名參加吧，Fast2test可以幫助你，所以不用擔心。
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