[Sep 09, 2026] Free HCSP Presales H19-404_V1.0 Official Cert Guide PDF Download
Huawei H19-404_V1.0 Official Cert Guide PDF
NEW QUESTION # 11
On which public cloud can the AR6700V-L running R024C10 not be deployed?
- A. Microsoft Azure
- B. Oracle Cloud
- C. AWS
- D. GCP
Answer: D
Explanation:
For the R024C10 software release specified in the question, the AR6700V-L cannot be deployed on Google Cloud Platform. The supported environments represented by this release and question are Amazon Web Services, Oracle Cloud, and Microsoft Azure.
Public-cloud support for a virtual CPE is release-specific. A virtual router requires more than generic virtual- machine compatibility. Huawei must provide or validate the appropriate cloud image, virtual network- interface drivers, deployment template, bootstrap mechanism, licensing integration, resource specifications, and controller-registration process for each cloud platform. Therefore, support for one KVM- or VMware- based environment does not automatically mean that every public-cloud provider is supported.
A cloud-hosted virtual CPE enables branches to establish overlay connectivity directly with cloud workloads and allows the controller to provide unified management and policy orchestration for physical and virtual edge devices. Huawei describes this model as deploying a virtual SD-WAN router on a public cloud to implement branch-to-cloud interconnection and unified policy orchestration. Under the R024C10 compatibility matrix tested by this question, GCP is excluded. Therefore, option B is correct.
NEW QUESTION # 12
Which of the following statements is true about an AP's transmit power?
- A. The higher the AP's transmit power, the better.
- B. The AP's transmit power must be within a proper range to avoid interference between APs.
- C. The transmit power of an AP does not matter.
- D. The lower the AP's transmit power, the better.
Answer: B
Explanation:
An AP's transmit power must be maintained within an appropriate range. Excessive power does not automatically improve service quality. A high-power AP can enlarge its interference domain, create co- channel or adjacent-channel interference, produce asymmetric uplink and downlink coverage, and cause sticky-client behavior because a station continues hearing an AP even when its weaker transmission cannot reliably reach that AP. Huawei states that high-power APs can interfere with adjacent APs and that radio calibration dynamically adjusts AP channels, power, and frequency bands to ensure coverage while minimizing interference.
Conversely, power that is too low creates coverage holes, weak received signal strength, low modulation rates, retransmissions, and roaming instability. When a new AP is added, neighboring APs may reduce their transmit power to limit interference. When an AP goes offline, neighboring APs may increase power to compensate for the missing coverage. The engineering objective is therefore neither maximum nor minimum power, but sufficient coverage with controlled overlap and minimum interference. Accordingly, option B is correct.
NEW QUESTION # 13
Which of the following deployment modes are supported by APs?
- A. Registration query center-based deployment
- B. Email-based deployment
- C. DHCP Option 148-based deployment
- D. Barcode scanning-based deployment with CloudCampus APP
Answer: A,C,D
Explanation:
APs support barcode scanning through the CloudCampus APP, DHCP Option 148-based deployment, and deployment through Huawei's registration query center. With barcode scanning, the installer scans the AP's label using the CloudCampus APP. The application obtains information such as the electronic serial number and MAC address, associates the AP with the correct tenant and site, and allows the AP to register with iMaster NCE.
With DHCP Option 148, the DHCP server supplies the AP with its IP configuration and the IP address and port number of iMaster NCE. The AP changes to cloud-management mode and automatically initiates registration. Huawei lists AR routers, switches, and APs as supported devices for this mode.
The registration query center can also provide the controller address after the AP contacts Huawei's query service. It supports APs together with ARs, firewalls, and switches. Email-based deployment is primarily an SD-WAN CPE or AR-router ZTP method, not an AP deployment mode. Therefore, A, C, and D are correct.
NEW QUESTION # 14
What are the modes of the HSR RedBox?
- A. HSR-SAN
- B. HSR-PRP
- C. PRP-PRP
- D. HSR-HSR
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 # 15
Which of the following statements are true about wireless traffic forwarding modes on a fabric wireless network?
- A. Tunnel forwarding has the disadvantage of traffic detour, which increases the forwarding-performance pressure on the WAC.
- B. Direct forwarding is not suitable for scenarios that have high requirements for roaming performance.
This is because roaming performance deteriorates slightly when a STA roams across edge nodes. - C. Tunnel forwarding facilitates centralized management and control of wireless traffic.
- D. Direct forwarding is more efficient.
Answer: A,B,C,D
Explanation:
All four statements correctly describe the trade-offs between direct and tunnel forwarding. With direct forwarding, an AP sends service traffic directly to the upstream network rather than encapsulating it in a CAPWAP data tunnel to the WAC. This eliminates unnecessary detours, avoids creating a WAC bandwidth bottleneck, reduces WAC load, and generally provides higher forwarding efficiency.
However, on a fabric network, Layer 3 roaming across different edge nodes may require the original edge or another designated device to remain the home agent. The resulting forwarding path and state synchronization can slightly affect roaming performance, making direct forwarding less suitable for extremely roaming- sensitive deployments. Huawei's material explains that after Layer 3 roaming in direct-forwarding mode, traffic may continue to be forwarded through the home agent.
Tunnel forwarding sends AP service traffic through CAPWAP tunnels to the WAC. This simplifies centralized policy enforcement, security control, and traffic management. Its disadvantage is that all wireless traffic may detour through the WAC, increasing forwarding pressure and potentially creating a performance bottleneck.
NEW QUESTION # 16
Which of the following BGP NLRI address-family combinations is used to transmit SD-WAN tunnel encapsulation information?
- A. AFI: 1, SAFI: 1
- B. AFI: 25, SAFI: 70
- C. AFI: 1, SAFI: 74
- D. AFI: 1, SAFI: 2
Answer: C
Explanation:
AFI 1 with SAFI 74 is the correct combination. In Multiprotocol BGP, the Address Family Identifier defines the basic network-layer address family, while the Subsequent Address Family Identifier specifies how the associated NLRI is interpreted. AFI 1 represents IPv4. SAFI 74 is assigned for SD-WAN capabilities and is used to distribute information required for SD-WAN edge discovery and tunnel establishment, including transport and encapsulation-related attributes.
The other combinations represent different forms of reachability information. AFI 1/SAFI 1 is ordinary IPv4 unicast NLRI. AFI 1/SAFI 2 represents IPv4 multicast reachability. AFI 25 represents Layer 2 VPN information, while SAFI 70 represents Ethernet VPN routes; that combination is associated with EVPN rather than the specific SD-WAN capability NLRI requested.
Huawei's architecture uses BGP-based control channels to exchange transport network port information, IPsec security-association information, and service routes. These parameters allow edge devices to determine peer endpoints and create GRE or GRE-over-IPsec data channels after the relevant service routes trigger tunnel establishment.
NEW QUESTION # 17
Which of the following can be prevented by using the unauthorized access prevention function of Huawei switches?
- A. Unauthorized access to a hub
- B. Unauthorized access to a USB flash drive
- C. Unauthorized Wi-Fi hotspot sharing
- D. Unauthorized access to a router
Answer: A,C
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 # 18
A label stack is an ordered set of labels. MPLS supports a maximum of three layers of nested labels.
- A. False
- B. True
Answer: A
Explanation:
The statement is false. An MPLS label stack is an ordered sequence of label-stack entries, with the top label processed first and the bottom identified by the Bottom-of-Stack bit. However, the MPLS architecture does not define a universal maximum of three nested labels. An MPLS forwarding operation may replace the top label, remove it, or push one or more additional labels onto the stack.
Practical label depth is constrained by device implementation, forwarding ASIC capabilities, packet size, and the number of network functions being encoded. A conventional MPLS VPN may use two labels: a transport label and a VPN label. More advanced deployments can add labels for traffic engineering, segment routing, entropy, service chaining, or hierarchical transport. This can produce stacks deeper than three entries.
Therefore, "three layers" may describe a limitation of a particular platform, software version, or deployment design, but it is not an MPLS protocol maximum. RFC 3032 defines the stack as a sequence of four-byte entries and explicitly allows one or more entries to be pushed without specifying a three-label ceiling.
NEW QUESTION # 19
Which of the following statements is false about GRE over IPsec?
- A. Compared with tunnel mode, transport mode adds an additional outer IP header. As a result, the packet is longer and more likely to be fragmented. Therefore, GRE over IPsec in tunnel mode is recommended.
- B. IPsec protects data flows between the GRE tunnel source and GRE tunnel destination.
- C. IPsec supports encapsulation in both tunnel and transport modes.
- D. GRE over IPsec first encapsulates packets using GRE and then protects the GRE packets using IPsec.
Answer: A
Explanation:
Option B is false because it reverses the encapsulation behavior. In IPsec transport mode, the IPsec security header is inserted after the existing IP header; a new outer IP header is not normally added. In tunnel mode, the complete original IP packet is encapsulated and a new outer IP header is added. Tunnel mode therefore generally introduces greater overhead and produces a longer packet than transport mode, not the reverse.
The remaining statements are correct. IPsec supports both transport and tunnel modes. GRE over IPsec performs GRE encapsulation first, allowing GRE to transport the original payload, and then applies IPsec protection to the resulting GRE packet. The IPsec security association is established between the GRE tunnel endpoints, protecting the GRE-encapsulated traffic as it traverses an untrusted transport network.
Huawei SD-WAN data channels can use either GRE or GRE over IPsec. GRE provides flexible overlay encapsulation, while IPsec adds confidentiality, integrity, origin authentication, and anti-replay protection for site-to-site traffic. Huawei specifically identifies IPsec encryption as the mechanism securing site-to-site SD- WAN services.
NEW QUESTION # 20
What are the objectives of the next-generation advanced industrial network with an open architecture?
- A. IP-based connections
- B. Networked devices
- C. Network intelligence
- D. Network-security integration
Answer: A,B,C,D
Explanation:
All four options represent objectives of a next-generation advanced industrial network. IP-based connections establish a standardized communications foundation, allowing production systems, controllers, sensors, machines, and management platforms to communicate through scalable Ethernet and IP technologies instead of isolated proprietary field networks.
Networked devices extend connectivity across operational technology assets so that equipment status, production data, and control information can be shared across production lines, plants, data centers, and cloud platforms. Network intelligence introduces automated provisioning, telemetry, analytics, fault prediction, policy optimization, and closed-loop operations. These capabilities reduce manual configuration and improve production availability.
Network-security integration is equally essential because greater openness and interconnection increase the potential attack surface. Security must therefore be integrated into access control, segmentation, device identification, encrypted communication, anomaly detection, and policy enforcement rather than added as an isolated external system. Huawei's broader CloudCampus architecture similarly emphasizes automated provisioning, intelligent O & M, secure interconnection, integrated wired and wireless management, and open network capabilities. The four objectives collectively create an open, connected, intelligent, and secure industrial communications architecture.
NEW QUESTION # 21
Which solution can be used when users need to centrally control and manage Internet access traffic but do not have the required security-processing capability?
- A. There is no solution.
- B. Connect to third-party security services to centrally control and manage services.
- C. Deploy advanced security capabilities on CPEs.
- D. Deploy professional security devices at the headquarters.
Answer: D
Explanation:
Professional security devices should be deployed at the headquarters or another centralized Internet-access site. Under centralized Internet access, branch Internet traffic is first carried through the SD-WAN overlay to the centralized gateway. The headquarters security infrastructure then performs access control and security inspection before forwarding the traffic to the Internet.
This approach is appropriate when branch CPEs lack sufficient processing capacity or advanced security functions. A centralized firewall or dedicated security platform can provide intrusion prevention, antivirus inspection, URL filtering, application control, content security, and unified logging. It also allows the enterprise to enforce one consistent security policy instead of maintaining separate advanced configurations at every branch.
Deploying advanced security capabilities on each CPE, as proposed in option C, is a distributed local- breakout design and does not satisfy the stated limitation concerning security-processing capability. Third- party cloud security services can be used in some site-to-cloud or secure Internet-access architectures, but they are not the intended headquarters-based centralized solution in this question.
Huawei explicitly states that centralized Internet traffic is diverted to the centralized access site and that the firewall function is deployed there to secure Internet services. Therefore, option D is correct.
NEW QUESTION # 22
Which of the following is not part of an IFIT measurement model?
- A. Measurement flow
- B. Measurement direction
- C. Measurement point
- D. NMS
Answer: D
Explanation:
The Network Management System is not an element of the IFIT measurement model. An IFIT measurement definition identifies the traffic to be measured, the locations where measurement actions occur, and the direction in which the flow is evaluated. The measurement flow specifies the target packets, usually through flow-identification fields. Measurement points define where packets are marked, counted, timestamped, or reported, such as ingress, transit, and egress nodes. Measurement direction distinguishes forward and reverse monitoring so that packet loss, delay, and path behavior can be analyzed correctly for each direction.
An NMS or controller remains operationally important because it creates measurement tasks, distributes configurations, receives telemetry data, correlates the results, and presents fault-location information.
However, it is the management and analysis system surrounding the measurement model, not one of the model's constituent measurement parameters.
Huawei positions IFIT as a high-precision telemetry mechanism used to delimit and locate application-quality faults. The training material highlights IFIT's capability to locate faults rapidly and detect packet loss with extremely high reliability. Therefore, the component that is not part of the measurement model is the NMS.
NEW QUESTION # 23
What are the two IPsec data encapsulation modes?
- A. ESP mode
- B. Tunnel mode
- C. AH mode
- D. Transport mode
Answer: B,D
Explanation:
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.
NEW QUESTION # 24
iMaster NCE-Campus can implement refined policy control over user permissions. Which of the following can be used as policy conditions?
- A. User identity
- B. Terminal type
- C. Access mode
- D. Access location
Answer: A,B,C,D
Explanation:
All four options can be used as conditions by the iMaster NCE-Campus intelligent policy engine. Huawei describes this capability through a 5W1H-based policy model. "Who" represents the user identity, user group, or role. "Where" represents the access location, including the site, region, device group, device, SSID, or IP address. "How" represents the access mode, such as wired or wireless access and the authentication method used. "What" represents the terminal type or device attributes, including PCs and mobile operating systems.
The platform can combine these conditions rather than evaluating them independently. For example, a finance employee using a corporate laptop through wired 802.1X access at headquarters can receive different permissions from the same employee connecting through a personal mobile device at a branch. The authorization result can include a VLAN, ACL, security group, bandwidth limit, DSCP value, application policy, or URL-filtering rule.
This multidimensional evaluation enables context-aware, fine-grained access control. Therefore, A, B, C, and D are all correct.
NEW QUESTION # 25
Intelligent policy recommendation can achieve network-level load balancing.
- A. True
- B. False
Answer: A
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 # 26
Which of the following can be determined through a survey of the terminal types on a customer's network?
- A. Network admission control solution
- B. Network access solution
- C. Network O & M solution
- D. Network architecture
Answer: A
Explanation:
A terminal-type survey primarily determines the appropriate network admission control solution. Different terminal categories have different authentication capabilities and security requirements. Corporate laptops may support 802.1X authentication, guests may require Portal authentication, and printers, cameras, sensors, and other dumb terminals commonly require MAC-address authentication or automatic terminal identification.
Huawei recommends selecting authentication technologies according to the terminal type and usage scenario.
For example, access switches can serve as authentication points for wired dumb terminals, while APs or other access devices can perform authentication for wireless users. After terminal identification is enabled, iMaster NCE-Campus can automatically assign VLANs, ACLs, security groups, QoS parameters, and other authorization policies according to terminal category.
The survey therefore establishes which endpoints support interactive authentication, which require non- interactive admission, and which must receive special isolation or compliance policies. It does not independently determine the complete physical network architecture or the overall O & M platform.
Consequently, the terminal survey is used to formulate the network admission control solution, making option C correct.
NEW QUESTION # 27
Which role supports MRM election?
- A. MRA
- B. MIM
- C. MRC
- D. MRM
Answer: A
Explanation:
MRA, or Media Redundancy Auto-Manager, supports the automatic election of the Media Redundancy Manager in an MRP ring. When several devices are configured with the MRA role, they exchange control information and elect one device to perform the MRM function. The elected MRM supervises the ring, blocks one ring port during normal operation to prevent a Layer 2 loop, detects failures, and changes the forwarding state when the ring becomes open.
An MRC is a Media Redundancy Client. It participates in the MRP ring and forwards MRP control packets, but it does not initiate the automatic manager-election process. MRM represents the operational manager role after election or manual configuration, rather than the role specifically designed to support election. MIM refers to a Media Redundancy Interconnection Manager, which is associated with interconnecting and protecting multiple MRP rings rather than electing the manager within one ring. MRP itself distinguishes the ring manager from ring clients and uses the manager to control ring forwarding and recovery.
NEW QUESTION # 28
Which of the following deployment modes are supported by AR routers?
- A. Registration query center-based deployment
- B. Email-based deployment
- C. DHCP Option 148-based deployment
- D. Barcode scanning-based deployment with CloudCampus APP
Answer: A,B,C
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 # 29
Which 5G-Advanced capabilities does the AR5710-S8T1XWE-NRGL support?
- A. Carrier aggregation: downlink 3CC and uplink 2CC
- B. NR 3GPP Release 16
- C. Eight APNs
- D. Global frequency bands
Answer: A,B,C,D
Explanation:
The AR5710-S8T1XWE-NRGL supports all four listed 5G-Advanced capabilities. Support for 3GPP Release
16 enables enhanced 5G New Radio functions and provides the standards foundation for improved mobile- WAN capacity, reliability, and service performance.
Carrier aggregation combines multiple component carriers to increase available throughput. Downlink 3CC allows three component carriers to be aggregated for received traffic, while uplink 2CC combines two carriers for transmitted traffic. This is valuable for high-bandwidth branch access, video backhaul, and mobile private- network scenarios.
Support for eight APNs permits multiple logically separated mobile services or provider profiles to be configured. Different APNs can represent enterprise services, management traffic, production systems, backup connectivity, or isolated customer networks. Global-frequency-band support improves deployment flexibility across countries and carrier networks, subject to local spectrum regulation and the supported modem variant.
Huawei SD-WAN can use 5G as a primary, secondary, or bypass link and supports combinations such as dual
5G and 5G plus wired connectivity for service assurance. Therefore, NR Release 16, carrier aggregation, eight APNs, and global frequency bands are all supported.
NEW QUESTION # 30
Which of the following are Target Wake Time (TWT) technologies?
- A. Implicit TWT
- B. Individual TWT
- C. Multicast TWT
- D. Broadcast TWT
Answer: A,B,D
Explanation:
Broadcast TWT, Individual TWT, and Implicit TWT are valid Target Wake Time concepts. Individual TWT establishes a wake schedule between an AP and a specific station. Broadcast TWT advertises scheduling information that multiple stations can use, reducing individual negotiation overhead and coordinating groups of devices. An implicit TWT agreement defines a repeating schedule in which subsequent wake times are calculated from the agreed wake interval instead of being renegotiated for every service period.
These mechanisms allow stations, particularly battery-powered IoT devices, to sleep for predictable periods and wake only when transmission or reception is scheduled. TWT consequently reduces power consumption, channel contention, collisions, and unnecessary medium access in dense WLAN environments. Research describing IEEE 802.11ax TWT confirms that the mechanism schedules station transmission periods and allows stations to remain asleep outside their negotiated service periods.
"Multicast TWT" is not one of the standard TWT concepts represented by this question. Broadcast scheduling can cover multiple stations, but that does not create a separate mechanism formally identified here as Multicast TWT. Therefore, the correct answers are A, B, and C.
NEW QUESTION # 31
Which of the following are WAN interconnection models for multi-branch campus networks?
- A. Partial-mesh
- B. Hub-spoke
- C. Partial-spoke
- D. Full-mesh
Answer: A,B,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 # 32
Which of the following encryption algorithms is used by WPA3?
- A. AES-128
- B. AES-512
- C. AES-256
- D. RC4
Answer: C
Explanation:
The intended answer is AES-256. In certification material, this question normally refers to the enhanced WPA3-Enterprise 192-bit security suite, which uses the GCMP-256 data-protection algorithm based on AES-
256, together with stronger integrity and key-management components. AES-512 is not a standardized AES variant, and RC4 is the obsolete stream cipher associated with legacy WEP and TKIP-era protection rather than WPA3.
There is an important technical qualification: WPA3 is a family of certification modes, not one universal cipher suite. WPA3-Personal commonly uses Simultaneous Authentication of Equals for password- authenticated key establishment and requires CCMP-128, which is based on AES-128. WPA3-Enterprise 192- bit mode, however, uses AES-256 in GCM mode. Therefore, the original wording is broader than it should be.
A technically precise version would ask which algorithm is associated with the WPA3-Enterprise 192-bit security suite. Under the intended Huawei examination scope and the supplied single-choice options, option B is correct. That distinction is crucial when interpreting this simplified examination item.
NEW QUESTION # 33
The AirEngine 8771-X1T has dynamic-zoom smart antennas that can switch between omnidirectional and high-density modes.
- A. True
- B. False
Answer: A
Explanation:
The statement is true. The AirEngine 8771-X1T uses dynamic-zoom smart-antenna technology that can adapt its radiation characteristics according to the deployment environment. In omnidirectional mode, the antenna pattern is optimized to provide broad and balanced coverage, making it appropriate for ordinary offices, corridors, classrooms, and other environments where users are distributed over a relatively large area.
In high-density mode, the antenna pattern is adjusted to concentrate radio energy more effectively within the intended service area. This reduces unnecessary signal leakage, limits interference between neighboring APs, and improves concurrent-user performance in lecture halls, conference rooms, auditoriums, and similar high- density environments.
The switching capability is more effective than using a permanently fixed antenna pattern because WLAN conditions can change as users move and traffic density increases or decreases. Huawei's training material states that dynamic-zoom smart antennas dynamically switch between omnidirectional and high-density modes, improving coverage in omnidirectional mode while strengthening the user experience in high-density scenarios. Therefore, option A is correct.
NEW QUESTION # 34
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