Latest Huawei H19-404_V1.0 Practice Test Questions, HCSE-Presales-Campus Network Planning and Design V1.0 Exam Dumps
Aug-2026 Pass Huawei H19-404_V1.0 Exam in First Attempt Easily
NEW QUESTION # 20
Which of the following can be prevented by using the unauthorized access prevention function of Huawei switches?
- A. Unauthorized Wi-Fi hotspot sharing
- B. Unauthorized access to a hub
- C. Unauthorized access to a router
- D. Unauthorized access to a USB flash drive
Answer: A,B
Explanation:
Huawei switches' unauthorized access prevention function can prevent users from connecting unauthorized hubs and sharing network access through unauthorized Wi-Fi hotspots. An unauthorized hub allows multiple terminals to enter the network through a port intended for a single managed endpoint. This can bypass normal terminal-count limitations, admission controls, and access-policy enforcement.
Unauthorized Wi-Fi hotspot sharing occurs when a user connects an authenticated endpoint to the enterprise network and then enables hotspot or connection-sharing functionality. Other terminals can subsequently access the network through that endpoint without completing the required authentication process. Huawei switches can analyze terminal behavior, MAC-address relationships, packet characteristics, and access patterns to identify and restrict this behavior.
A USB flash drive is a local storage device and does not provide Ethernet network access, so option A is unrelated to switch-based unauthorized network access prevention. An unauthorized router is normally controlled through device identification, NAC, port security, or explicit access policies rather than the specific hub and hotspot-sharing prevention function described by this question.
Huawei intelligent terminal management combines terminal identification, authorization, traffic analysis, and bogus-terminal detection to achieve visualized access and prevent unauthorized connectivity.
NEW QUESTION # 21
Which of the following WLAN networking solutions is recommended when there are 15,000 wireless terminals on the customer network?
- A. Core switch + aggregation switch + access switch + native WAC + AP
- B. All of the above
- C. Core switch + access switch + native WAC + AP
- D. Core switch + aggregation/access switch + standalone WAC + AP
Answer: D
Explanation:
A network serving 15,000 wireless terminals is a large-scale WLAN and should use a standalone WAC solution. A dedicated WAC provides independent controller resources, scalable AP and user management, centralized WLAN policy control, and the ability to deploy controller redundancy without tying wireless- control capacity directly to a specific core-switch service card.
Huawei recommends a standalone WAC when the wireless network scale is large or when the wireless network is deployed independently over an existing wired campus. The WAC is typically connected to the aggregation or core layer in off-path mode, and VRRP hot standby can be used to improve reliability.
Native WAC solutions are valuable for unified wired and wireless management, authentication, forwarding, and policy enforcement. However, for a very large number of wireless terminals, the controller platform must be selected according to user, AP, traffic, and forwarding-capacity specifications. A standalone WAC allows the wireless control plane to be sized and expanded independently.
Option C provides the dedicated WAC together with the required core and aggregation or access infrastructure. Therefore, it is the recommended architecture for 15,000 wireless terminals.
NEW QUESTION # 22
Traffic can be forwarded directly between the two PRP ports of a PRP RedBox.
- A. False
- B. True
Answer: A
Explanation:
The statement is false. In Parallel Redundancy Protocol, LAN A and LAN B must remain two separate, failure-independent networks. A PRP RedBox connects a singly attached node or conventional network to both parallel LANs and behaves toward the PRP network like a doubly attached node. It duplicates outgoing frames and transmits one copy through each PRP port. For incoming traffic, it accepts the first valid copy and discards the later duplicate before forwarding the frame through its interlink port.
The RedBox must not operate as a normal bridge that directly forwards frames from its LAN A port to its LAN B port. Doing so would connect the two redundant LANs, potentially creating loops, duplicate propagation, broadcast amplification, and a common failure path. That would defeat the fundamental PRP requirement that failure or disruption in one LAN must not affect the other.
The original video contains the typing error "PPR RedBox"; the correct term is PRP RedBox , meaning Parallel Redundancy Protocol Redundancy Box. PRP topology requires two separate networks with no direct links between them, while the RedBox provides controlled redundant attachment for non-PRP devices.
NEW QUESTION # 23
What are the modes of the HSR RedBox?
- A. HSR-PRP
- B. HSR-HSR
- C. PRP-PRP
- D. HSR-SAN
Answer: A,B,C,D
Explanation:
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.
NEW QUESTION # 24
Which of the following parameters is not mandatory for GRE configuration?
- A. GRE protocol for the tunnel
- B. Source IP address of the tunnel
- C. Destination IP address of the tunnel
- D. Enabling the GRE checksum
Answer: D
Explanation:
Enabling the GRE checksum is optional. A functional point-to-point GRE tunnel requires a tunnel interface, GRE as the tunnel protocol, and reachable source and destination tunnel endpoints. The source identifies the local interface or IP address used to construct the delivery header, while the destination identifies the remote GRE endpoint. Without these endpoint parameters, the device cannot correctly encapsulate and deliver packets to the peer.
The checksum field is controlled by the Checksum Present bit in the GRE header. When checksum processing is enabled, the sender includes a checksum covering the GRE header and payload, and the receiver verifies it.
This can provide additional corruption detection, but it increases processing and is not required for basic GRE operation. RFC 2784 explicitly labels the checksum field as optional and states that it is present only when the Checksum Present bit is set.
Huawei SD-WAN uses GRE or GRE over IPsec to establish data channels between edge devices. The essential tunnel and transport-network information is distributed through the control system, while optional GRE functions such as checksum validation may be enabled according to operational requirements.
NEW QUESTION # 25
Which of the following capabilities were introduced with Wi-Fi 7?
- A. 320 MHz channel bandwidth
- B. 4096-QAM
- C. The 6 GHz frequency band
- D. MU-MIMO with eight spatial streams
Answer: A,B
Explanation:
The capabilities introduced with Wi-Fi 7 are 4096-QAM and channel bandwidth of up to 320 MHz. Wi-Fi 7, based on IEEE 802.11be Extremely High Throughput, doubles the maximum channel width available under Wi-Fi 6 and Wi-Fi 6E from 160 MHz to 320 MHz where sufficient regulatory spectrum is available. It also introduces 4096-QAM, encoding 12 bits per modulation symbol compared with 10 bits for Wi-Fi 6's 1024- QAM. This can increase peak spectral efficiency when the signal-to-noise ratio is sufficiently high.
The other options were available before Wi-Fi 7. Support for up to eight spatial streams existed in earlier IEEE 802.11 generations, and MU-MIMO was already supported before Wi-Fi 7, with major uplink and downlink enhancements delivered by Wi-Fi 6. The 6 GHz band was commercially introduced through Wi-Fi
6E. Huawei's material specifically describes Wi-Fi 6E as extending Wi-Fi 6 into the 6 GHz spectrum. Wi-Fi 7 continues using 6 GHz but did not introduce it. Therefore, only A and C are correct.
NEW QUESTION # 26
On a campus fabric network, which of the following methods can be used for non-authenticated terminals to access a VN?
- A. Configuring static VLANs
- B. Dynamically authorizing VLANs
- C. Authorizing VLANs in wired mode
- D. Authorizing VLANs in wireless mode
Answer: A
Explanation:
Non-authenticated terminals can access a virtual network by using statically configured VLANs. Such terminals may include printers, cameras, sensors, industrial devices, and other dumb terminals that cannot perform 802.1X, Portal, or comparable interactive authentication. Their access interfaces and service VLANs are therefore configured in advance and mapped to the required VN.
Dynamic VLAN authorization requires a completed authentication or identification process. Normally, an authentication server returns a VLAN or other authorization attribute after validating the user or terminal.
Because the question specifically refers to non-authenticated terminals, dynamically authorizing a VLAN is not the applicable mechanism. The wired-mode and wireless-mode authorization options are likewise associated with authentication-based policy delivery rather than unconditional VN access.
Huawei's VN design guidance states that LAN-side physical interfaces and VLANs are assigned to the appropriate departments or services and then associated with corresponding VRFs or VNs. It also explains that a department may use an independent physical interface or share an interface while maintaining isolation through VLANs. Therefore, configuring a static VLAN is the correct method.
NEW QUESTION # 27
Which of the following statements are true about selecting network access authentication points?
- A. Centralized authentication points provide higher performance.
- B. Authentication points should be deployed closer to terminals to provide stronger security control.
- C. APs are recommended as authentication points for wireless users.
- D. Access switches are recommended as authentication points for wired users.
Answer: B,C,D
Explanation:
Authentication points should generally be placed on access devices close to the terminals. For wireless users, the AP or WLAN access device is the natural admission point because it directly controls the station's wireless association and service access. For wired users, the access switch directly connects the endpoint and can enforce 802.1X, MAC-address authentication, VLAN authorization, ACLs, and security-group policies.
Huawei recommends access devices as authentication points for employees and specifically recommends access switches as authentication points for wired dumb terminals using MAC-address authentication.
Deploying enforcement close to endpoints prevents unauthenticated or unauthorized traffic from traversing deeper into the campus network. It also improves fault isolation, policy granularity, and scalability because admission processing is distributed across access devices.
Option A is incorrect. A centralized authentication point can simplify configuration and policy management, but it does not inherently provide higher performance. It can create concentrated processing pressure, enlarge the Layer 2 scope, and allow unauthenticated traffic to travel farther before being evaluated. Therefore, the recommended principles are represented by B, C, and D.
NEW QUESTION # 28
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?
- A. A-FEC
- B. IPCA
- C. IFIT
- D. FEC
Answer: A
Explanation:
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.
NEW QUESTION # 29
Which of the following statements is false about the energy-saving function of the digital map?
- A. It displays the energy consumption of network-wide devices.
- B. It automatically recommends energy-saving periods.
- C. It automatically powers off switches.
- D. It automatically powers off some wireless APs during energy-saving periods.
Answer: C
Explanation:
Option C is false. The digital-map energy-saving function provides network-wide energy visibility, identifies periods of low wireless demand, and recommends appropriate energy-saving time windows. During an approved energy-saving period, selected wireless APs or radio resources can be placed into an energy-saving state after the system evaluates coverage, traffic, and capacity requirements.
Automatically powering off switches is not the intended function. Campus switches may carry essential wired services, provide uplinks for other network devices, and supply PoE power to APs, cameras, phones, sensors, and access-control systems. Automatically shutting down a complete switch could therefore interrupt many unrelated services and potentially disconnect downstream network segments.
Huawei identifies low-carbon and energy-saving operation as a characteristic of cloud campus networks and combines this objective with AI-based intelligent O & M and proactive optimization. Its intelligent O & M architecture analyzes AP load trends and performs predictive wireless-network optimization, providing the analytical foundation for selecting safe energy-saving periods and resources.
Therefore, A, B, and D describe supported digital-map energy-saving capabilities. Automatic switch power- off is the false statement, making C correct.
NEW QUESTION # 30
Which of the following Wi-Fi 7 APs offers PCIe card-based IoT functions?
- A. AirEngine 6776-58TI
- B. AirEngine 5773-25HW
- C. AirEngine 6776I-X6TH
- D. AirEngine 8771-X1T
Answer: C
Explanation:
The AirEngine 6776I-X6TH is the model designed to provide PCIe card-based IoT expansion. The PCIe interface enables an appropriate IoT expansion card to be installed so that the AP can support additional wireless or sensing technologies according to the deployment requirement. This allows the same physical access infrastructure to deliver enterprise Wi-Fi and IoT connectivity.
The capability is useful in retail, healthcare, education, manufacturing, and asset-management environments, where technologies such as Bluetooth, RFID, Zigbee, electronic shelf labels, location services, or specialized sensing systems may need to coexist with the WLAN. A modular card design is preferable when an organization requires selectable or upgradeable IoT functions rather than only fixed integrated capabilities.
Huawei's Wi-Fi and IoT convergence architecture reduces repeated cabling, separate power systems, and independently managed wireless networks. It enables an IoT-capable AP to provide the installation position, power, management connectivity, and uplink data channel required by IoT modules. Among the models listed, the AirEngine 6776I-X6TH is the PCIe card-based IoT model. Therefore, option A is correct.
NEW QUESTION # 31
Intelligent policy recommendation can achieve network-level load balancing.
- A. False
- B. True
Answer: B
Explanation:
The statement is true. Intelligent policy recommendation does not consider only the traffic load of an individual interface or device. iMaster NCE-Campus obtains network topology, application, link-quality, bandwidth-utilization, and traffic-distribution information from multiple devices. It can then recommend or orchestrate policies that distribute traffic across the network's available paths and resources.
For example, when multiple WAN links have the same priority and satisfy an application's SLA requirements, per-flow load balancing can distribute different application flows among those links.
Bandwidth-proportional balancing can also account for differences in link capacity, preventing a lower- bandwidth link from being overloaded. Huawei explains that load-balancing-based traffic steering can fully utilize multiple links and distribute flows across links meeting the required SLA.
Because iMaster NCE-Campus centrally manages CPEs and uniformly orchestrates service intent across the overlay network, recommendations can be evaluated from a network-wide perspective instead of through isolated local decisions. Therefore, intelligent policy recommendation can implement network-level load balancing.
NEW QUESTION # 32
Which of the following statements is false about Layer 3 roaming?
- A. The IP address of a STA changes after Layer 3 roaming.
- B. When Layer 3 roaming occurs for a STA, the STA's traffic is diverted to the HAP.
- C. The HAP is determined when the STA accesses the network for the first time.
- D. Before and after Layer 3 roaming, the SSID remains the same, but the service VLANs are different.
Answer: A
Explanation:
Option B is false because a station retains its original IP address during Layer 3 roaming. Preserving the IP address is essential for maintaining active application sessions when the station moves between APs associated with different service VLANs, Layer 2 domains, and gateways. Huawei's training diagram shows the same station IP address before and after roaming, while the service VLAN changes.
When the STA initially accesses the WLAN, a Home AP or HAP is selected for it. After the STA roams to a Foreign AP, the new AP obtains the station information and establishes the required forwarding relationship with the HAP. In direct-forwarding implementations, the STA's traffic is encapsulated and forwarded to the HAP, which preserves access through the original network and gateway.
Therefore, A and C accurately describe HAP-based Layer 3 roaming. Option D is also correct: the APs use the same SSID and authentication mode but different service VLANs. The station's IP address does not change, so B is the false statement.
NEW QUESTION # 33
On a large campus network, inter-WAC roaming should be avoided as much as possible to ensure the roaming experience.
- A. False
- B. True
Answer: B
Explanation:
The statement is true as a WLAN design recommendation. Inter-WAC roaming is supported, but it introduces more control-plane interaction and forwarding complexity than intra-WAC roaming. The Home WAC and Foreign WAC must belong to the same mobility group, synchronize station and AP information, and establish an inter-WAC CAPWAP tunnel for control information and, in some scenarios, service forwarding.
Additional synchronization, tunnel processing, route handling, and failure dependencies can increase roaming delay and complicate troubleshooting. This is especially relevant for delay-sensitive applications such as voice, video, automated guided vehicles, and real-time production systems. A better design places APs between which users frequently move under the same WAC wherever controller capacity and physical topology permit.
Avoiding inter-WAC roaming does not mean disabling the function entirely. Large campuses may require multiple WACs for scale, redundancy, or geographic distribution. Mobility groups should still be configured for unavoidable cross-controller movement. However, buildings, floors, and continuous roaming areas should be assigned carefully so that normal roaming remains intra-WAC. Therefore, the recommendation in the statement is correct, and the answer is True.
NEW QUESTION # 34
Which of the following are WAN interconnection models for multi-branch campus networks?
- A. Partial-mesh
- B. Partial-spoke
- C. Hub-spoke
- D. Full-mesh
Answer: A,C,D
Explanation:
Huawei SD-WAN supports full-mesh, hub-spoke, and partial-mesh interconnection models. In a full-mesh topology, every site can communicate directly with the other sites. This model minimizes intermediate forwarding and is appropriate when branches frequently exchange latency-sensitive traffic such as voice, video, or collaborative application data.
In a hub-spoke topology, branch sites communicate with a central headquarters or data-center hub. Branch-to- branch traffic normally traverses that hub. The model is simple, scalable, and suitable for enterprises whose applications and shared resources are concentrated at headquarters.
Partial-mesh is used when most sites can communicate directly but some sites lack direct underlay connectivity or do not require direct tunnels. Those sites can communicate through a redirect or intermediate site. Huawei describes full-mesh, hub-spoke, and partial-mesh as supported topology designs and explains the role of a redirect site in partial-mesh networking.
"Partial-spoke" is not a defined SD-WAN topology model. A spoke is a role within hub-spoke networking rather than an independent partial-spoke topology. Therefore, A, B, and D are correct.
NEW QUESTION # 35
Which of the following protocol data packets can be encapsulated in a VPN using GRE?
- A. IP multicast data packets
- B. IP unicast data packets
- C. IPv6 data packets
- D. IP broadcast data packets
Answer: A,B,C,D
Explanation:
GRE is a multiprotocol encapsulation mechanism and can carry all the listed packet types. It inserts a GRE header around the original payload and then places the resulting GRE packet inside a delivery-protocol packet. Because the GRE header contains a Protocol Type field identifying the encapsulated payload, GRE is not restricted to ordinary IPv4 unicast traffic.
IPv6 packets can be transported as GRE payloads when supported by the tunnel endpoints. IP unicast traffic is the most common use case. GRE can also carry IP multicast and broadcast packets, which is one of its major advantages over basic IPsec tunnel selectors that traditionally focus on IP unicast traffic. This enables routing protocols, multicast applications, discovery traffic, and other non-unicast services to operate across a logical point-to-point tunnel.
RFC 2784 defines GRE as a general mechanism for encapsulating an arbitrary network-layer protocol over another network-layer protocol. It also defines the Protocol Type field used to identify the carried payload.
Huawei uses GRE as an SD-WAN overlay data-channel option and can additionally secure it using IPsec when confidentiality and integrity are required.
NEW QUESTION # 36
Which of the following deployment modes are supported by AR routers?
- A. DHCP Option 148-based deployment
- B. Email-based deployment
- C. Barcode scanning-based deployment with CloudCampus APP
- D. Registration query center-based deployment
Answer: A,B,D
Explanation:
AR routers support registration query center-based deployment, email-based deployment, and DHCP Option
148-based deployment. In registration query center deployment, the router obtains basic network connectivity, resolves or contacts Huawei's registration service, retrieves the address and port of iMaster NCE, and then initiates registration. Huawei identifies AR routers, firewalls, switches, and APs as applicable devices for this method.
Email-based deployment is a major SD-WAN ZTP method for AR routers operating as CPEs. An administrator creates the site and ZTP configuration on iMaster NCE and sends a deployment URL to the onsite engineer. After the URL is opened and the parameters are written to the router, the device connects to the WAN and automatically registers with the controller.
DHCP Option 148 can provide the controller's southbound IP address and port number to an IPv4 AR router, enabling automatic registration. Barcode scanning through the CloudCampus APP is specifically presented as an AP onboarding method, not an AR-router deployment method. Therefore, A, C, and D are correct.
NEW QUESTION # 37
What is the function of the PROFINET DCP?
- A. Discovers devices and assigns IP addresses.
- B. Exchanges process data between the controller and I/O device.
- C. Connects the controller to the I/O device and parameterizes related objects.
- D. Exchanges alarms between the controller and I/O device.
Answer: A
Explanation:
PROFINET DCP, meaning Discovery and Basic Configuration Protocol, is used during device discovery and initial network configuration. It operates at the data-link layer and enables an engineering station or PROFINET IO controller to locate devices on the local Ethernet segment, identify them by MAC address or station name, assign a PROFINET device name, and configure IP parameters such as the IP address, subnet mask, and default gateway.
DCP is therefore not responsible for normal cyclic process-data exchange. Real-time PROFINET communication performs that function after the controller and I/O device have been configured and an application relationship has been established. Alarm exchange and acyclic parameterization are also handled through other PROFINET communication relationships and services.
The distinction matters during commissioning. A new I/O device may initially have no usable IP configuration. DCP allows the controller or engineering tool to discover it at Layer 2 and provision the identity and addressing information required before higher-layer communication can begin. PROFINET documentation identifies DCP as mandatory for assigning IP addresses and configuring station names on the local network.
NEW QUESTION # 38
......
Free H19-404_V1.0 Exam Files Downloaded Instantly 100% Dumps & Practice Exam: https://www.2pass4sure.com/HCSP-Presales/H19-404_V1.0-actual-exam-braindumps.html