Huawei Updated H12-811_V1.0 Exam Questions and Answers by viktor

Comprehensive Explanation: In OSPF (Open Shortest Path First), a router first synchronizes its Link-State Database (LSDB) with its neighbors by exchanging link-state information. Only after this synchronization process is complete does the router transition to the Full state. The Full state indicates that the router has fully converged with its OSPF neighbors and has a complete and up-to-date view of the network topology. Therefore, the router enters the Full state after synchronizing its LSDB, not before.

Command Output Overview:

The command display startup is used to check the configuration of the startup system software, configuration files, license files, and other related settings on Huawei routers. The output in this case provides details about:

The current system software (ar2220-v200r003c00spc200.cc).

The next startup system software (ar222b-v200r003c00spc200.cc).

Backup and saved configuration files, which are not defined (null).

Analysis of Options:

Option A: "The system file for next startup cannot be modified."This statement is false because the system file for the next startup can be modified using the startup system-software command. The file path for the next startup system software (ar222b-v200r003c00spc200.cc) indicates that it has been configured and can be changed by the administrator. The command syntax is supported as per Huawei's documentation​​.

Option B: "The startup system software command can be used to modify the system software for next startup."This is true and matches the functionality provided by Huawei's routers. The command allows administrators to specify the software package to be used at the next system reboot​​.

Option C: "The running configuration file is not saved."This is true as the Startup saved-configuration file is listed as null, meaning that no configuration file has been saved for startup. Saving the running configuration is necessary to ensure settings persist after a reboot​​.

Option D: "The system file used for the current startup is ar2220-v200r003c00spc200.cc."This is true as per the output under Startup system software, which confirms the system file used in the current boot process​​.

Correct Statement Selection:Based on the analysis, the statement "The system file for next startup cannot be modified" is false. This matches the system's behavior, where administrators are allowed to modify the next startup file using relevant commands.

References:

Huawei HCIA-Datacom V1.0 Training Material and Lab Guide​​.

Command-line operations from Huawei routers, as documented in the training materials and lab environments​​.

Detailed Explanation:APs can be added to an AC using multiple methods. You can add them when they are online, offline, or allow the AC to automatically discover them. Additionally, unauthorized APs can be manually confirmed for security​.

Dynamic IGP Routing Protocols:

OSPF (Open Shortest Path First): A dynamic IGP that uses link-state information for routing within an autonomous system​​.

Analysis of Options:

Option A: "Static" refers to manually configured routes, not dynamic.

Option B: "BGP" is a dynamic routing protocol but an EGP, not an IGP.

Option C: "Direct" refers to routes learned from directly connected networks and is not dynamic.

Option D: "OSPF" is a dynamic IGP, making it the correct choice.

Correct Answer:The dynamic IGP routing protocol is D (OSPF).