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| Section | Weight | Objectives |
|---|---|---|
| IP Technology Basics | 25% | - IP routing basics and forwarding - Static routing, OSPF fundamentals - IPv4 addressing, subnetting - IPv6 basics |
| Data Communication Network Basics | 10% | - Data forwarding process - Basic network concepts and architecture - ARP, TCP/UDP principles - VRP system basics and operations - Campus network basics - OSI and TCP/IP protocol models |
| Ethernet Technology Basics | 20% | - Ethernet standards and switch principles - Link aggregation and stacking technologies - VLAN, STP, RSTP principles and configuration |
| WLAN Technology Basics | 10% | - Basic WLAN configuration - WLAN architecture and working principles - 802.11 standards and WLAN components |
| Typical Campus Networking Solution | 5% | - End-to-end networking scenarios - Campus network design and integration |
| Data Center Network Basics | 5% | - Data center architecture overview - Basic data center networking technologies |
| Network O&M and Troubleshooting | 10% | - Fault diagnosis and troubleshooting methods - Network monitoring and management tools |
| Network Security and Services | 15% | - AAA and basic security technologies - ACL, NAT principles and configuration - DHCP, DNS, FTP, Telnet services |
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質問 # 22
In the WAC + Fit AP networking, an AP fails to go online. The output of the display ap all command run on the WAC is shown below. According to the command output, which of the following is the possible cause of the AP's failure to go online?
正解：B
解説：
The correct answer is C. In the command output, the AP state is shown as ver-mismatch. This state directly indicates a version mismatch between the AP and the WAC. In Huawei WLAN deployment, a Fit AP must use a software version that is compatible with the WAC version. If the versions do not match, the AP may be discovered by the WAC and appear in the AP list, but it cannot successfully complete the online process.
質問 # 23
Refer to the graphic, 00e0-fc99-9999 is a specific host MAC address learned by a switch through ARP, and the host changes the IP address three times.
正解：A
解説：
In this scenario, the MAC address 00e0-fc99-9999 is associated with multiple IP addresses through dynamic ARP learning, indicating that the host's IP has changed several times. The ARP table on the switch shows multiple entries with different IPs mapped to the same MAC address, which is common when a device frequently updates its IP. As ARP is a dynamic protocol, these entries reflect the device's current and past IP associations.
質問 # 24
Which of the following statements are true about ACL rules? (Select all that apply)
正解：A、B、D
解説：
The HCIA-Datacom V2.0 Training Material explains that ACLs classify packets using configured matching rules.
Option A is incorrect because different service modules may process ACL matching results differently.
Option B is correct. ACL matching produces positive-match or negative-match results. A positive match occurs when a packet matches a configured rule, whereas a negative match occurs when no applicable rule matches.
Option C is correct because the final traffic-processing action depends on the ACL rule and the service module applying the ACL. A permit or deny match does not independently determine all service behavior.
Option D is also correct. Huawei ACL matching normally follows the first-match principle, meaning that matching stops when the first applicable rule is found.
Therefore, the correct answers are B, C, and D.
質問 # 25
R1 has four static routes, each of which has a reachable next hop. Given this static route configuration, what is the next hop of the route to 20.0.0.0/30 in R1's routing table?
正解：C
解説：
All four configured static routes have the same destination prefix, 20.0.0.0/30, and the question states that every next hop is reachable. Huawei route selection first considers route preference when choosing among routes from the same or different route sources. For static routes, a smaller preference value means a higher priority. The four preferences shown are 60 for next hop 10.1.1.2, 70 for 10.1.2.2, 100 for 10.1.3.2, and 50 for
10.1.4.2. Because 50 is the smallest preference, the route through 10.1.4.2 is selected as the active route in the IP routing table. The other configured static routes can remain as lower-priority alternatives and may become active if the preferred route becomes invalid, depending on reachability and configuration. Equal-cost load balancing would require routes with the same relevant preference and cost after route selection. That is not the case here. Therefore, the next hop of the selected route to 20.0.0.0/30 is 10.1.4.2, making option A correct.
質問 # 26
Assume you need to assign IP addresses from different networks to four departments, which have 100, 50, 32, and 31 hosts, respectively. Assigning addresses from subnet 192.168.1.0/24 cannot meet this requirement.
正解：A
解説：
A /24 network (192.168.1.0/24) provides 256 IP addresses, with 254 usable host addresses.
Using VLSM, the host requirements are 100, 50, 32, and 31, which require subnet sizes of 128,
64, 64, and 64 addresses respectively (since 32-host and 31-host networks both need /26 or larger depending on usable host calculation). The total required address space exceeds what can be efficiently allocated within a single /24 network without overlap or waste constraints.
質問 # 27
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