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| Section | Objectives |
|---|---|
| Topic 1: Campus Network Fundamentals | - Typical campus network deployment models - Enterprise campus network architecture principles |
| Topic 2: Presales Solution Design | - Customer requirement analysis - Solution proposal and design methodology |
| Topic 3: Huawei Campus Network Solutions | - iMaster NCE-Campus management platform - CloudCampus solution architecture |
| Topic 4: WLAN Planning and Design | - Wireless coverage planning - Capacity and performance design considerations |
| Topic 5: Switching and Routing in Campus Networks | - VLAN and segmentation design - Layer 2 and Layer 3 design principles |
| Topic 6: Network Security Design | - Access control strategies - Campus security architecture considerations |
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28. Frage
Which of the following can be prevented by using the unauthorized access prevention function of Huawei switches?
Antwort: B,D
Begründung:
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.
29. Frage
Which of the following statements is false about GRE over IPsec?
Antwort: A
Begründung:
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.
30. Frage
Which of the following SM-series cryptographic algorithms is supported?
Antwort: D
Begründung:
SM4 is the supported SM-series cryptographic algorithm intended by this question. SM4 is a standardized symmetric block cipher that uses a 128-bit block size and a 128-bit key. It is suitable for high-volume data encryption because symmetric cryptography can process service traffic efficiently compared with public-key algorithms.
Within an SD-WAN or IPsec context, the bulk traffic carried through secure data channels requires a symmetric encryption algorithm. SM4 can therefore be used as the encryption component of an approved cryptographic suite where compliance with Chinese commercial cryptography requirements is necessary.
SM2 is an asymmetric public-key cryptographic suite used for functions such as digital signatures, key exchange, and public-key encryption. It is not the bulk data-encryption algorithm requested in this item. SM1 is a restricted proprietary algorithm whose implementation details are not publicly standardized in the same manner, while SM5 is not the supported option represented by the Huawei course question.
Huawei's SD-WAN architecture uses IPsec to protect site-to-site services and supports secure GRE-over- IPsec data channels between edge devices. In the SM-series selection presented here, the correct supported traffic-encryption algorithm is SM4.
31. Frage
On a campus fabric network, which of the following methods can be used for non-authenticated terminals to access a VN?
Antwort: C
Begründung:
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.
32. Frage
Which of the following statements is false about the energy-saving function of the digital map?
Antwort: D
Begründung:
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.
33. Frage
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