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

The correct answer is D . In Single Sign-On deployment on Huawei firewalls, the firewall commonly acts as the access control enforcement point , while the actual user authentication is performed by an external or third-party authentication server, such as an LDAP, RADIUS, or other identity system. In this process, the user may enter credentials through the firewall’s Portal page, but the firewall forwards the authentication information to the authentication server rather than locally storing and validating the password itself.

Option A is incorrect because SSO is not based on the firewall storing passwords and independently authenticating users. Option B is also incorrect because it describes a model where the firewall merely records identity and does not participate, while in practice the firewall participates in the access control and authentication interaction workflow. Option C describes an SMS-style verification process, which is not the essential mechanism being tested for SSO here.

Therefore, the correct SSO description is that the firewall receives the credentials, forwards them to a third-party authentication server, and the actual authentication is completed on that server.

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.

Protocol identification and analysis

Application data reassembly

Signature matching

Attack response

The correct IPS processing order starts with protocol identification and analysis . Before an IPS can judge whether traffic is malicious, it must first determine what protocol is being used and analyze the packet structure according to the expected protocol behavior. This helps the device understand whether the traffic is HTTP, FTP, SMTP, DNS, or another protocol and prepares it for deeper inspection.

After that, the IPS performs application data reassembly . Many attacks are not visible in a single packet, so the IPS must reconstruct fragmented or segmented traffic into complete application data. This allows the device to inspect the real payload content rather than isolated packet pieces.

Once the data is reassembled, the IPS performs signature matching . At this stage, the traffic content and behavior are compared with known attack signatures, protocol anomalies, and detection rules to determine whether the traffic matches a malicious pattern such as injection, buffer overflow, or directory traversal.

Finally, the IPS performs the attack response . Based on the detection result, it may permit, block, reset, alarm, or log the traffic. Therefore, the correct order is D → A → B → C .