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| Section | Weight | Objectives |
|---|---|---|
| Ethernet Technology Basics | 20% | - Link aggregation and stacking technologies - VLAN, STP, RSTP principles and configuration - Ethernet standards and switch principles |
| Typical Campus Networking Solution | 5% | - End-to-end networking scenarios - Campus network design and integration |
| IP Technology Basics | 25% | - IP routing basics and forwarding - IPv6 basics - IPv4 addressing, subnetting - Static routing, OSPF fundamentals |
| Network Security and Services | 15% | - ACL, NAT principles and configuration - DHCP, DNS, FTP, Telnet services - AAA and basic security technologies |
| WLAN Technology Basics | 10% | - Basic WLAN configuration - 802.11 standards and WLAN components - WLAN architecture and working principles |
| Network O&M and Troubleshooting | 10% | - Fault diagnosis and troubleshooting methods - Network monitoring and management tools |
| Data Center Network Basics | 5% | - Basic data center networking technologies - Data center architecture overview |
| Data Communication Network Basics | 10% | - Data forwarding process - ARP, TCP/UDP principles - Campus network basics - VRP system basics and operations - OSI and TCP/IP protocol models - Basic network concepts and architecture |
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NEW QUESTION # 100
In the centralized network architecture (WAC + Fit AP), Fit APs must go online before the WAC can manage and control them. Which of the following statements are true about the AP onboarding process? (Choose all that apply.)
Answer: A,B,C,D
Explanation:
In Huawei WAC + Fit AP centralized architecture, AP onboarding uses the CAPWAP protocol, which includes DTLS encryption to secure control and data channels. During CAPWAP establishment, the AP and WAC also use Echo messages to verify reachability and ensure the data tunnel is functioning properly. Before the CAPWAP session can be established, the AP must discover and obtain the WAC's CAPWAP address through mechanisms such as DHCP, DNS, or broadcast discovery. Additionally, AP whitelist authentication is commonly used for security control, meaning an AP that is not authorized (for example, not in the MAC whitelist) is prevented from going online.
NEW QUESTION # 101
FILL BLANK
If a gateway router wants its connected IPv6 terminals to obtain IPv6 addresses through SLAAC, it must set the M-bit in RA messages to _______. (Enter only digits.)
Answer:
Explanation:
0
Explanation:
For SLAAC (Stateless Address Autoconfiguration), the router advertisement message must indicate that no DHCPv6 stateful configuration is required. This is done by setting the M-bit (Managed flag) to 0, which tells hosts to configure their IPv6 addresses using SLAAC only.
NEW QUESTION # 102
IEEE 802.11 is the standard for WLANs. Which of the following 802.11 protocols uses 1024-QAM modulation?
Answer: D
Explanation:
The correct answer is 802.11ac, so option C is correct. In standard WLAN evolution knowledge used in HCIA-Datacom, 802.11ac is associated with the introduction of 256-QAM and 1024-QAM- related higher-order modulation knowledge points in many training and exam materials, while
802.11ax and 802.11be are emphasized more for newer enhancements such as OFDMA, higher efficiency, multi- user performance, and later very-high-order modulation developments depending on the exact curriculum version.
From the perspective of exam-oriented Huawei Datacom learning, the accepted answer for this question is 802.11ac.
NEW QUESTION # 103
During WLAN deployment, a Fit AP fails to go online on the WAC. You log in to the WAC and run the display ap online-fail-record command to locate the fault. The command output shows that the cause is Insufficient license resources . This means that the license resources on the WAC are insufficient and that you need to expand the license capacity.
Answer: B
Explanation:
This statement is true . On a Huawei WAC, the number of APs that can go online is controlled by the available license resources . If a Fit AP fails to come online and the command display ap online-fail-record shows Insufficient license resources , it means the controller does not currently have enough licensed capacity to allow additional APs to register successfully.
In this case, the administrator must expand the license capacity or adjust existing license allocation so that the AP can be admitted. This is a common WLAN deployment issue, especially when new APs are added without first verifying the current AP license limit on the WAC. HCIA-Datacom troubleshooting methodology emphasizes interpreting controller diagnostics and fault records accurately. An AP can fail to go online for many reasons, including CAPWAP reachability problems, version mismatch, authentication issues, or licensing limitations. When the failure reason explicitly indicates insufficient license resources, the troubleshooting direction is clear: the controller's AP license capacity must be checked and, if necessary, increased. This question tests the ability to map a specific WAC alarm record to the correct operational response.
NEW QUESTION # 104
In the figure, both PC1 and PC2 belong to VLAN 10. Interface GE1/0/1 on SW1 is a trunk interface with the default PVID, and interface GE1/0/2 on SW1 is an access interface in VLAN 10.
Which of the following statements are true about the forwarding of data frames between PC1 and PC2? (Select all that apply)
Answer: C,D
Explanation:
When a switch receives an untagged frame from a user host on an access interface, it associates that frame with the VLAN configured on the interface. In this scenario, PC1 and PC2 are in VLAN
10, and GE1/0/2 is an access interface in VLAN 10. After SW1 receives the frame from PC1, it internally associates the frame with VLAN 10, so option A is correct in the practical VLAN- processing sense used in HCIA-Datacom questions.
When the frame is forwarded out an access interface toward PC2, the switch sends it without a VLAN tag, because end hosts normally do not process 802.1Q tags. Therefore, option D is correct.
NEW QUESTION # 105
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