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| Section | Objectives |
|---|---|
| Topic 1: Campus Network Fundamentals | - Enterprise campus network architecture principles - Typical campus network deployment models |
| Topic 2: Network Security Design | - Access control strategies - Campus security architecture considerations |
| Topic 3: Huawei Campus Network Solutions | - CloudCampus solution architecture - iMaster NCE-Campus management platform |
| Topic 4: Presales Solution Design | - Customer requirement analysis - Solution proposal and design methodology |
| Topic 5: Switching and Routing in Campus Networks | - VLAN and segmentation design - Layer 2 and Layer 3 design principles |
| Topic 6: WLAN Planning and Design | - Wireless coverage planning - Capacity and performance design considerations |
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NEW QUESTION # 20
What are the modes of the HSR RedBox?
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 # 21
A label stack is an ordered set of labels. MPLS supports a maximum of three layers of nested labels.
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 # 22
Which of the following technologies is used for wireless attack detection?
Answer: C
Explanation:
WIPS is the correct technology because it provides wireless intrusion prevention capabilities, including detecting and containing rogue access points, rogue stations, ad hoc devices, spoofing attempts, flood attacks, and other malicious activity on the radio interface. Huawei's security-design material groups WIDS and WIPS with wireless attack detection and rogue-device containment. It recommends attack detection in public areas and primary or secondary education environments with high security requirements.
WIDS primarily detects and reports suspicious behavior, while WIPS adds active prevention or containment actions according to the configured policy. The other options serve different purposes. Mesh is a wireless networking architecture used to provide backhaul connectivity or extend coverage between APs; it is not an attack-detection mechanism. Spectrum analysis identifies non-Wi-Fi interference sources and evaluates radio- frequency utilization, but does not provide complete security attack detection and containment. Protected Management Frames protects selected 802.11 management frames against forgery, deauthentication, and disassociation attacks, but it is a protection mechanism rather than the comprehensive detection system requested. Therefore, WIPS is the correct answer.
NEW QUESTION # 23
Which of the following deployment modes are supported by AR routers?
Answer: B,C,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 # 24
What is the maximum number of access units supported by a central switch on a passive Ethernet network (PEN)?
Answer: A
Explanation:
A central switch in the relevant passive Ethernet network architecture supports a maximum of 48 access units.
The architecture replaces a conventional multi-layer access design with a centralized switch and distributed remote or access units. The access units function as extensions of the central switch's ports, simplifying device management, configuration, and topology maintenance.
Huawei's CloudEngine S5731-H fixed central-switch specification provides models with 24 or 48 hybrid optical-electrical downlink ports. The 48-port model can therefore directly manage up to 48 associated access or remote units under the design limits represented by this question. The same hybrid links can provide data transmission and remote PoE power, enabling access units to be installed closer to terminals without requiring conventional active aggregation equipment at every location.
The central switch automatically discovers the topology, while remote units behave as extended ports rather than independently managed switches. This reduces management nodes and simplifies a traditional three- layer network into a two-layer architecture. The larger values of 64, 72, and 96 exceed the supported maximum for the specified central-switch implementation. Therefore, option C is correct.
NEW QUESTION # 25
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