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| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | HCIA-Datacom V2.0 |
| Exam Number: | H12-811_V2.0 |
| Exam Format: | Drag and Drop Item, True or False, Short Response Item, Multiple-answer Question, Single-answer Question |
| Exam Price: | 200 USD |
| Related Certifications: | HCIE-Datacom HCIP-Datacom |
| Passing Score: | 600/1000 |
| Available Languages: | English |
| Real Exam Qty: | 60 |
| Certificate Validity Period: | 3 years |
| Exam Duration: | 90 minutes |
| Recommended Training: | Huawei HCIA-Datacom Training Course |
| Exam Registration: | Huawei Official Certification Pearson VUE Registration |
| Sample Questions: | Huawei H12-811_V2.0 Sample Questions |
| Exam Way: | Online proctored or onsite at Pearson VUE test centers |
| Pre Condition: | No mandatory prerequisites |
| Official Syllabus URL: | https://e.huawei.com/en/training/certification/exam/h12-811_v2.0 |
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問題 #75
On a switched network where STP is enabled on all devices, when a downstream device detects a topology change, it continuously sends configuration BPDUs to the upstream device until the root bridge is informed of the topology change.
答案：A
解題說明：
This statement is false . In classic STP, when a non-root switch detects a topology change, it does not continuously send configuration BPDUs upstream to notify the root bridge. Instead, it sends a Topology Change Notification (TCN) BPDU toward the root bridge through its root port. Each upstream switch acknowledges the TCN and forwards it further until it reaches the root bridge.
After the root bridge receives the topology change notification, the root bridge sets the Topology Change (TC) flag in its configuration BPDUs, and those configuration BPDUs are then propagated throughout the network. Therefore, topology-change notification and normal configuration BPDU transmission are different functions. The statement is wrong because it confuses TCN BPDUs with configuration BPDUs , and also inaccurately describes the notification behavior. HCIA-Datacom requires learners to distinguish between these BPDU types and understand how STP reacts to topology changes by accelerating MAC address aging and informing the network through the root bridge. This process helps the Layer 2 topology converge and reduces long-lasting forwarding inconsistencies after a link or port-state change.
問題 #76
After checking the status of GE0/0/1 on R1, you obtain the command output shown below. Which of the following statements are true? (Select all that apply)
答案：B,C,D
解題說明：
Huawei network devices provide the display interface command to view interface status, physical characteristics, and operational parameters.
The output identifies the interface MAC address as b0c7-8733-d65c, confirming option A.
The command output also displays PVID: 1, meaning that the default VLAN ID associated with untagged ingress traffic is VLAN 1. Therefore, option B is correct.
Option C is incorrect because the output identifies the interface as COMMON COPPER, indicating an Ethernet electrical interface rather than an optical interface.
Finally, the output displays GE0/0/1 current state : UP, indicating that the physical interface is operational.
Therefore, option D is correct.
The HCIA-Datacom device operation material emphasizes interpreting interface information when checking network connectivity and diagnosing faults.
Consequently, the correct answers are A, B, and D.
問題 #77
AAA is short for authentication, authorization, and accounting. The accounting function records only the fees incurred when users use network resources, but not the Internet access traffic or duration.
答案：A
解題說明：
The accounting function in AAA records user activity details such as login/logout times, session duration, accessed services, and traffic statistics. It is not limited to recording fees; it also tracks usage data for auditing, monitoring, and billing purposes.
問題 #78
Which of the following configurations can enable connectivity between interfaces on R1 and R3?
(Select all that apply)
答案：A,B
解題說明：
For two directly connected edge networks to communicate through intermediate routing, each end router must have a route to the remote destination network pointing to the correct next hop on the transit link. Since 10.0.0.0/24 is directly connected to R1 and 20.1.1.0/24 is directly connected to R3, R1 needs a route to 20.1.1.0/24, and R3 needs a route to 10.0.0.0/24.
Option A is correct because it configures on R1 a static route to the remote network 20.1.1.0/24 using next hop 10.0.0.2, which is the neighbor toward the transit path. Option D is correct because it configures on R3 a static route to the remote network 10.0.0.0/24 using next hop
20.1.1.1, which is the proper adjacent forwarding address in that direction.
問題 #79
When a Huawei network device functions as an FTP server, which of the following are possible causes of an FTP client failing to log in to the FTP server? (Select all that apply)
答案：A,B,C,D
解題說明：
All four options are possible causes of FTP login failure, so the correct answer is A, B, C, and D.
Option A is correct because if the FTP server function is not enabled on the Huawei device, the device cannot provide FTP services and the client cannot log in. Option B is also correct because if the authorized directory is not specified for the FTP user, the user may not be able to complete login or access file services properly, depending on the FTP user configuration requirements.
Option C is correct because an FTP user account must be configured with the required username and password; otherwise, authentication cannot succeed. Option D is also correct because if the network between the FTP client and the device is unreachable, the client cannot establish the FTP connection at all.
In HCIA-Datacom troubleshooting, FTP login failure is usually checked from four aspects: service enablement, user configuration, permission or directory authorization, and network connectivity.
This question tests standard remote maintenance troubleshooting logic for file transfer services on Huawei network devices.
問題 #80
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