Pass the Huawei HCIA-Security H12-711_V4.0 Questions and answers with Dumpstech

Explanation From HCIA-Security documents:

AAA provides a unified framework for Authentication, Authorization, and Accounting, and on Huawei devices the AAA authentication method can be selected according to the management and deployment requirements. Local authentication uses user accounts stored on the device itself, which is suitable for small environments, emergency access, or when external servers are unavailable. RADIUS authentication relies on a centralized RADIUS server, commonly used for large-scale user access control and unified credential management. HWTACACS authentication is another centralized mode that supports fine-grained control and is often preferred in scenarios requiring stronger separation of authentication and authorization, as well as detailed command-level management in some deployments. In addition, AAA can be configured for no authentication (also called none), meaning the device does not verify user identity for a specific access scenario. This mode is typically used only in controlled environments or for specific services where authentication is handled elsewhere, because it reduces security. Therefore, all listed modes are supported by AAA.

This statement is TRUE . In VRRP, a device in a virtual router group can exist in three defined states : Initialize , Master , and Backup . These states determine how the device participates in gateway redundancy and packet forwarding.

The Initialize state is the beginning state of a VRRP router. In this state, the device is not yet acting as the active virtual gateway and is preparing to participate in the VRRP election process. After VRRP negotiation or election, one router becomes the Master . The Master router owns the virtual IP address for the group, forwards user traffic sent to that virtual gateway, and periodically sends VRRP advertisement packets to inform the other routers that it is operating normally.

The other routers remain in the Backup state. Backup routers do not normally forward traffic for the virtual gateway, but they continuously monitor the Master’s advertisements. If the Master fails or stops sending advertisements within the expected time, one of the Backup routers is elected to take over and become the new Master. This failover mechanism ensures default gateway redundancy , reduces service interruption, and improves network reliability. Therefore, the statement is correct.

Certificate application

Certificate issuing

Certificate storage

Certificate verification

Certificate usage

Certificate update

Certificate revocation

The PKI lifecycle describes the complete process a digital certificate goes through from creation to termination. The first stage is certificate application , where a user or device generates a key pair and submits a certificate request to the certification authority or registration authority.

After the request is approved, the CA performs certificate issuing , which involves creating and signing the certificate using the CA’s private key. Once issued, the certificate must be securely saved on the device, which is the certificate storage phase. Proper storage ensures that the certificate and the associated private key can be safely used when authentication or encryption is required.

Before using a certificate in communication, systems perform certificate verification . This step checks the certificate chain, validity period, and CA signature to confirm that the certificate is trustworthy. After successful verification, the certificate enters the certificate usage phase, where it is used for encryption, authentication, digital signatures, or secure communications such as HTTPS or IPsec.

During its lifetime, a certificate may require certificate update (renewal) when it approaches expiration. Finally, if the certificate becomes invalid or compromised, certificate revocation is performed to terminate its trust before its expiration date.