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| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | HCIA-Datacom V2.0 |
| Exam Number: | H12-811_V2.0 |
| Exam Duration: | 90 minutes |
| Exam Price: | 200 USD |
| Passing Score: | 600/1000 |
| Exam Format: | Drag and Drop Item, Single-answer Question, True or False, Short Response Item, Multiple-answer Question |
| Related Certifications: | HCIP-Datacom HCIE-Datacom |
| Available Languages: | English |
| Certificate Validity Period: | 3 years |
| Real Exam Qty: | 60 |
| Recommended Training: | Huawei HCIA-Datacom Training Course |
| Exam Registration: | Pearson VUE Registration Huawei Official Certification |
| 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 |
>> H12-811_V2.0 Fragenkatalog <<
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117. Frage
If PC1 obtains an IPv6 address through SLAAC, which of the following is the network prefix length of the address that PC1 receives?
Antwort: D
Begründung:
In SLAAC (Stateless Address Autoconfiguration), IPv6 hosts always use a 64-bit interface identifier with a /64 network prefix. The router advertisement provides a /64 prefix, and the host generates the remaining 64 bits for its interface ID.
118. Frage
FILL BLANK
In the figure, R1 functions as an FTP client, and R2 functions as an FTP server. When configuring FTP user information on the server, the administrator needs to set the user level to obtain the corresponding access permission. To do so, the administrator needs to run the local- user admin privilege level _____ command in the AAA view of R2. (Enter only digits, range is from 0 to 3.)
Antwort:
Begründung:
3
Explanation:
Privilege level 3 provides the highest user permission level in this command range. For an FTP administrator account on a Huawei device, setting the local user to level 3 grants sufficient permission to access and manage files on the FTP server.
119. Frage
DAD enables a node to detect whether an IPv6 address is already in use by another node before assigning it to an interface. This ensures that duplicate unicast addresses do not exist on a network. Which of the following packets are used for DAD? (Select all that apply)
Antwort: C,D
Begründung:
Duplicate Address Detection ( DAD ) is an IPv6 mechanism used to verify that a unicast address is not already in use before the address is assigned to an interface. DAD is implemented using Neighbor Solicitation (NS) and Neighbor Advertisement (NA) messages, which are part of the ICMPv6 Neighbor Discovery protocol. Therefore, options A and D are correct.
When a host wants to verify a tentative IPv6 address, it sends an NS message for that address. If another node on the link is already using that address, that node responds with an NA message, indicating the address is duplicated and cannot be assigned. If no NA is received within the required period, the host assumes the address is unique and can use it. Options B and C are incorrect because Router Solicitation (RS) and Router Advertisement (RA) are used for router discovery, prefix advertisement, and stateless address autoconfiguration, not for DAD itself. HCIA-Datacom emphasizes the distinction between Neighbor Discovery functions, including address resolution, next-hop reachability, router discovery, and duplicate address detection in IPv6 networks.
120. Frage
With the continuous development of AI, data center application scenarios are gradually divided into general-purpose computing and intelligent computing scenarios. Data centers need to ensure service continuity of general-purpose computing clusters while unleashing the full potential of intelligent computing clusters, so as to guarantee stable and efficient operation in the AI era.
Which of the following statements are true about the service requirements of data center networks in the two scenarios? (Select all that apply)
Antwort: B,D
Begründung:
The correct statements are B and C. Option B is true because general-purpose computing data center networks focus heavily on stability, reliability, service continuity, and flexible VM deployment. Technologies such as M-LAG improve gateway and uplink redundancy and support fast failover, while VXLAN enables large-scale Layer 2 extension for VM mobility and resource flexibility.
Option C is also true because intelligent computing networks, especially those serving AI training and distributed GPU clusters, require an extremely low-loss or lossless forwarding environment.
Technologies such as PFC and ECN are standard methods used to build such networks and reduce congestion-related packet loss.
121. Frage
In the WLAN networking, multiple APs can broadcast the same SSID and belong to the same BSSID, allowing STAs to stay connected to the same wireless network wherever they move.
Antwort: A
Begründung:
In WLAN networks, multiple APs can broadcast the same SSID to provide seamless roaming for STAs, but they do not share the same BSSID. Each AP has a unique BSSID (typically the MAC address of its radio interface). Roaming works based on SSID consistency while maintaining different BSSIDs per AP, so the statement is incorrect.
122. Frage
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