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| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | HCIA-Datacom V2.0 |
| Exam Number: | H12-811_V2.0-ENU |
| Related Certifications: | HCIA-Datacom |
| Exam Format: | Multiple-response, Drag-and-drop, Multiple-choice, Simulation |
| Exam Price: | $200 USD |
| Certificate Validity Period: | 3 years |
| Real Exam Qty: | 60 |
| Passing Score: | 600/1000 |
| Exam Duration: | 90 minutes |
| Available Languages: | English, Chinese |
| Sample Questions: | Huawei H12-811_V2.0 Sample Questions |
| Exam Way: | Available at Pearson VUE test centers (offline) or online proctored exam. |
| Pre Condition: | No prerequisites required; candidates can register directly. |
| Official Syllabus URL: | https://e.huawei.com/en/talent/cert/#/cert/Details/68381b0d8e534a6a9339761047279030 |
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NEW QUESTION # 105
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: B,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 # 106
Radio waves are a type of electromagnetic waves with relatively high frequencies and short wavelengths in the electromagnetic spectrum.
Answer: A
Explanation:
Radio waves are part of the electromagnetic spectrum and are characterized by relatively low frequency and long wavelength compared to other types such as microwaves, infrared, and visible light. However, they still belong to the broader category of electromagnetic waves, so the statement correctly identifies them as electromagnetic waves, making it true.
NEW QUESTION # 107
Which of the following commands can be used to check OSPF routes in the global routing table?
Answer: C
Explanation:
To check OSPF-learned routes in the global IP routing table , the correct command is display ip routing- table protocol ospf , so option A is correct. This command filters the routing table and shows only the routes whose source protocol is OSPF. It is especially useful when verifying whether OSPF-learned routes have been successfully installed into the forwarding table after neighbor establishment and LSDB calculation.
Option B , display ospf peer, is used to check OSPF neighbor information and adjacency states, not the routing table. Option C , display ospf interface, shows OSPF-related parameters on interfaces such as timers, network type, and cost. Option D , display ospf routing, displays OSPF route information maintained by the OSPF process itself, but the question specifically asks about routes in the global routing table , which is the RIB used for actual forwarding decisions. HCIA-Datacom distinguishes between protocol-specific route information and the final routing table seen by the device. Understanding this distinction helps engineers verify whether a protocol has only learned topology information or has actually produced usable forwarding entries.
NEW QUESTION # 108
The emergence of AI poses new requirements on data center networks. To meet AI computing requirements, a high-speed intelligent computing data center network with zero packet loss needs to be constructed. Which of the following statements are false about the requirements and solutions of intelligent computing data center networks? (Select all that apply)
Answer: B,D
Explanation:
The false statements are A and D . Option A is considered false in HCIA-Datacom wording because intelligent computing data center networks aim to build a lossless Ethernet fabric through coordinated technologies such as high-bandwidth interfaces, deep buffers, PFC, ECN, congestion control, and optimized forwarding. The exam-oriented knowledge point treats these technologies as solutions for a zero packet loss network design goal rather than stating that a truly lossless network cannot be achieved.
Option D is also false because RDMA is used to reduce end-to-end communication latency and CPU overhead between servers, especially for east-west traffic in AI and high-performance computing clusters. It is not specifically described as reducing latency between GPU servers and physical switches . That wording is inaccurate. Option B is true because PFC and ECN are standard lossless Ethernet technologies applied in intelligent computing networks. Option C is also true because AI training and distributed computing generate massive data synchronization traffic, requiring very high single-port bandwidth such as 200GE or 400GE .
HCIA-Datacom highlights bandwidth, low latency, and lossless transport as the core requirements of intelligent computing data center networks.
NEW QUESTION # 109
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.
Answer: B
Explanation:
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.
NEW QUESTION # 110
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