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| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | HCIA-Datacom V2.0 |
| Exam Number: | H12-811_V2.0 |
| Exam Format: | Single-answer Question, Short Response Item, True or False, Drag and Drop Item, Multiple-answer Question |
| Exam Duration: | 90 minutes |
| Related Certifications: | HCIP-Datacom HCIE-Datacom |
| Available Languages: | English |
| Passing Score: | 600/1000 |
| Real Exam Qty: | 60 |
| Exam Price: | 200 USD |
| Certificate Validity Period: | 3 years |
| 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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NEW QUESTION # 30
Which of the following are valid static route configurations?
Answer: A,B,C
Explanation:
Option A is valid; the destination is defined in CIDR format (129.1.0.0/16) with a specified outgoing interface.
Option B is valid; it uses a subnet mask format and specifies a next-hop IP.
Option D is also valid with the destination and mask defined and a next-hop IP.
NEW QUESTION # 31
On an intelligent computing data center network, the lossless network technology _____ is deployed to instruct the sender to stop sending packets when network congestion is about to occur, ensuring zero packet loss on the network. (Enter the acronym in uppercase.)
Answer:
Explanation:
PFC
Explanation:
The acronym in the source file is mistyped as PCF. The correct intelligent lossless Ethernet technology is PFC, which stands for Priority-based Flow Control. PFC extends Ethernet flow control by applying pause behavior to selected traffic priorities rather than stopping all traffic on an interface. When a downstream device detects that a lossless priority queue is approaching congestion, it can send a priority-specific pause indication to the upstream sender. The upstream device temporarily stops transmitting traffic for that priority, preventing the downstream buffer from overflowing and thereby supporting zero-packet-loss behavior for the protected traffic class. This capability is important in intelligent computing and data center fabrics carrying storage or high-performance computing workloads that are sensitive to packet loss. Huawei describes PFC as a foundational technology for intelligent lossless networks, often used together with congestion-management mechanisms such as ECN and related optimization features. Therefore, the blank must be filled with PFC in uppercase. The original answer PCF should be corrected to PFC.
NEW QUESTION # 32
OSPF supports the division of a network into areas, each identified by an area ID that ranges from 0 to 255.
Area 0 is designated as the backbone area.
Answer: A
Explanation:
This statement is false because although Area 0 is indeed the backbone area, the statement about the area ID range is incorrect. In OSPF, the area ID is a 32-bit value, which can be represented either in decimal format or in IPv4 address format such as 0.0.0.0. It is not limited to the numeric range 0 to 255.
For example, an area can be configured as 0, 1, 100, or in dotted-decimal form such as 0.0.0.1 or 0.0.0.10, depending on implementation and configuration style. HCIA-Datacom teaches that OSPF uses hierarchical area design to improve scalability, reduce SPF calculation scope, and optimize LSA flooding. The backbone area, which is Area 0, serves as the transit area connecting all non-backbone areas in a standard OSPF design.
Therefore, the second part of the statement is correct, but the first part is wrong, making the entire statement false. This question tests whether the learner understands both the function of Area 0 and the actual format of OSPF area identifiers.
NEW QUESTION # 33
When deploying a WLAN with the WAC + Fit AP architecture on a customer's live network, you find that APs fail to go online. Which of the following are possible causes? (Choose all that apply.)
Answer: B,C,D
Explanation:
APs may fail to go online due to issues in IP address acquisition, control connectivity, or CAPWAP configuration. Incorrect DHCP settings can prevent APs from obtaining IP addresses, and an unavailable link between APs and WAC will block CAPWAP establishment. If no CAPWAP address is configured on the WAC, APs cannot discover or establish a control channel to the WAC. AP working mode being Fat is not a typical direct cause of online failure in a Fit AP + WAC deployment, since mode mismatch alone does not inherently block online status if properly converted or managed.
NEW QUESTION # 34
Defining OSPF areas in a large network helps reduce the size of the LSDB maintained by each router. If both R1 and R2 are assigned to area 1, they have the same LSDB within that area.
Answer: B
Explanation:
OSPF divides a large routing domain into areas so that link-state information can be contained and the processing burden on individual routers can be reduced. Within a given OSPF area, routers exchange LSAs and synchronize the area ' s link-state database. After the network has converged and the participating routers have full adjacency where required, routers in the same area maintain a consistent view of that area ' s topology. Each router then runs the SPF algorithm independently against that common LSDB, using itself as the root, so the calculated shortest-path tree can differ in perspective even though the underlying area topology database is the same. Area boundaries also limit which detailed LSAs need to be maintained by routers outside the area, which is one reason hierarchical OSPF scales better than a single very large area. The statement should be understood under normal, converged OSPF operation; simply sharing an area number without connectivity would not create synchronization. In the intended HCIA Datacom context, R1 and R2 participating in the same area maintain the same area LSDB. Therefore the answer is TRUE, option A.
NEW QUESTION # 35
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