H12-811_V2.0 Exam Dumps and Practice Questions

Comprehensive and Detailed 150 to 200 words of Explanation From Datacom knowledge:

The false statement is B. From the AAA configuration output, the value of Remote-admin-user block time is clearly shown as 5 Min(s), which means the account lockout duration is 5 minutes, not 30 minutes.

Option A is true because Remote-admin-user block retry-time : 3 indicates that after 3 consecutive authentication failures, the account will be blocked. Option C is also true because the displayed Domain Name Delimiter is @, which is the separator used in usernames such as user@huawei.com. Option D is true as well because the output shows Local-user : total: 512 used: 2, meaning that the device supports a maximum of 512 local users, and currently 2 local users have been created.

This question checks the ability to correctly read AAA configuration output on Huawei devices. In HCIA-Datacom knowledge, it is important to distinguish between retry interval, retry count, and block time, because these values represent different security control parameters and are often confused during troubleshooting or configuration review.

Option D is correct. The AAA configuration binds the domain huawei.com to the authentication scheme auth1, which uses RADIUS as the authentication mode, and to the accounting scheme acc1, which also uses RADIUS. Therefore, when a user logs in with a user name in the format hcia-datacom@huawei.com, the device parses the suffix @huawei.com, matches the domain, and applies the configured RADIUS authentication method.

Option A is false because RADIUS does support accounting, and UDP port 1813 is commonly used for that purpose. Option B is false because a separate authorization server IP is not strictly required in this context; RADIUS can carry authorization attributes together with authentication/accounting processing depending on server behavior and device configuration. Option C is false because standard RADIUS communication uses UDP, not TCP, with authentication typically on port 1812 and accounting on 1813. HCIA-Datacom teaches domain-based AAA processing as a key concept, where the user name suffix determines which authentication, authorization, and accounting policies are applied on the NAS device.

This statement is false. In campus network VLAN planning, VLAN IDs do not have to be allocated strictly consecutively without any gaps. In fact, leaving some reserved VLAN IDs is often a practical and recommended design approach. VLAN planning should focus on clarity, scalability, maintainability, and service separation, rather than on forcing all VLAN IDs to be contiguous.

For example, an administrator may reserve certain VLAN ranges for user access, voice services, management, wireless services, guest access, future expansion, or specific departments. Such structured planning makes later network expansion easier and reduces the risk of service conflicts or disruptive renumbering. HCIA-Datacom emphasizes that good campus network planning should consider current requirements and future growth. Consecutive allocation may look tidy at first, but it can actually reduce flexibility and make later additions more difficult. Therefore, the idea that VLAN IDs must be assigned consecutively without redundancy to avoid omissions is not a correct design principle. Reasonable reservation and categorized allocation are often more beneficial in real enterprise campus networks.

On Huawei VRP, the startup saved-configuration command specifies the configuration file that the device will load at the next restart. This is distinct from selecting the system software image. The startup system-software command identifies the software package used for the next boot, whereas startup saved-configuration identifies the saved configuration that should be restored after the software starts. The reset saved-configuration command clears the saved startup configuration rather than selecting one, and reset factory-configuration is used to restore factory-related settings on platforms that support it. In normal operations, an administrator first saves or uploads a valid configuration file to local storage and then uses startup saved-configuration to nominate that file for the next startup. The selected file must be in a format supported by the device and accessible in its file system. Therefore, when the requirement is specifically to define which configuration file is used after the next reboot, option B is the correct Huawei VRP command.

The nat server configuration creates a static mapping so that an internal Telnet server at private address 192.168.1.1 can be reached from the public network using global address 100.0.23.2 on the Telnet TCP port. The purpose of NAT Server is to expose an internal service through a reachable public address and translate incoming packets to the inside host. A public user therefore initiates the connection to the configured global address, for example telnet 100.0.23.2, assuming routing and security policies allow the session. The user does not normally issue telnet 192.168.1.1 from the public network because that is the private inside address and is not the destination on which the public-side NAT mapping is matched. After the packet reaches R1 addressed to 100.0.23.2, R1 translates the destination to 192.168.1.1 and forwards it internally. Thus the configuration can make the private server reachable, but the command stated in the question uses the wrong destination address. The statement is FALSE, option B.