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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Huawei CloudCampus Solution Overview | 15% | - CloudCampus architecture and components - iMaster NCE-Campus management and control platform - WLAN solution and wireless service deployment - Security design and threat defense in campus |
| Topic 2: Campus Network Fundamentals | 15% | - Campus network architecture and design principles - Hierarchical network model and functional positioning - Basic concepts and development trends of campus networks |
| Topic 3: Campus Network Planning, Design and Deployment | 20% | - Migration and upgrade strategies - IP addressing and VLAN planning - Device deployment, configuration and commissioning - Requirement analysis and solution formulation - Network service design and isolation |
| Topic 4: Intelligent O&M and Troubleshooting | 10% | - Fault diagnosis and common troubleshooting methods - iMaster NCE-CampusInsight and monitoring system - Performance optimization and capacity planning |
| Topic 5: Campus Network Technology Details | 40% | - Free mobility and user group management - QoS deployment and service quality assurance - High availability technologies: VRRP, Eth-Trunk, stack - VXLAN and BGP EVPN technologies - Campus network virtualization and resource pooling - Network access control: 802.1X, MAC authentication, Portal |
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質問 # 224
In Huawei's WAN solution, for the scenario of "high packet loss rate in WAN links causing intermittent VoIP voice calls", which of the following technologies can "achieve packet loss recovery through redundant data transmission and ensure smooth voice calls"?
正解：A
質問 # 225
(Refer to the following figure.
Which of the following solutions can be used to prevent users from accessing the network using statically configured IP addresses?)
正解：B
解説：
Comprehensive and Detailed 200 to 250 words of Explanation From HCIP Datacom Campus Network documents knowledge without any URL or Links:
To prevent users from accessing the network using statically configured IP addresses, Huawei campus networks rely on a combination ofDHCP SnoopingandIP Source Guard (IPSG). DHCP Snooping works by monitoring DHCP message exchanges and building atrusted binding tablethat records legitimate IP-MAC- VLAN-interface mappings learned dynamically from a legal DHCP server. This binding table becomes the foundation for several Layer 2 security mechanisms.
IP Source Guard uses the DHCP Snooping binding table to strictly control traffic entering an interface. When IPSG is enabled, the switch permits only packets whose source IP address and MAC address match an entry in the DHCP Snooping binding table. If a user manually configures a static IP address, no valid DHCP binding exists for that host, so IPSG drops the traffic and denies network access. This directly prevents statically configured IP addresses from being used to access the network.
Dynamic ARP Inspection (DAI) focuses on preventing ARP spoofing and man-in-the-middle attacks, not static IP misuse. Port Security limits MAC addresses per interface but does not verify IP address legitimacy.
Therefore, neither DAI nor Port Security alone can prevent users from assigning static IP addresses.
According to HCIP Datacom Campus Network security design principles,only the combination of DHCP Snooping and IPSGeffectively enforces IP address legitimacy and blocks statically configured IP access, making optionCthe correct answer.
質問 # 226
In a wide area network (WAN) OSPF deployment, when a non-backbone area (such as Area 1) is not directly connected to the backbone area (Area 0), which of the following technologies needs to be deployed to solve the routing connectivity problem?
正解：B
質問 # 227
For the "branch multi-link access" scenario, which of the following functions of Huawei's SD-WAN solution can achieve load balancing and redundancy backup of the links? (Multiple choice)
正解：C、D、E
質問 # 228
(VXLAN identifies tenants using VNIs, which are 24 bits long. A tenant can have one or more VNIs, and VXLAN supports a maximum of 12 million tenants.)
正解：A
解説：
VXLAN uses theVXLAN Network Identifier (VNI)to identify and isolate virtual Layer 2 or Layer 3 networks in an overlay environment. The VNI field is24 bits long, which allows a theoretical maximum of2²# (approximately 16 million) VNIs. This is a significant improvement over traditional VLAN technology, which supports only 4094 VLAN IDs, and is one of the main reasons VXLAN is adopted in large-scale campus and data center networks.
It is correct thata tenant can be mapped to one or more VNIs. For example, a tenant may use multiple VNIs to represent different broadcast domains or service segments, such as separate VNIs for different subnets or application tiers. However, the statement becomes incorrect when it claims that VXLAN supports a maximum of12 million tenants.
VXLAN does not directly define a fixed maximum number of tenants. VNIs represent virtual networks, not tenants themselves. The actual number of tenants supported depends on how VNIs are allocated and how the network design maps tenants to VNIs. In theory, the upper limit of VNIs is close to 16 million, not 12 million, and the number of tenants is typically much lower and design-dependent.
Therefore, while the description of VNIs being 24 bits long is correct, the conclusion about supporting a maximum of 12 million tenants is incorrect, making the overall statement false.
質問 # 229
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