Huawei H12-711_V4.0 Exam With Confidence Using Practice Dumps

Explanation From HCIA-Security documents:

On a Huawei firewall, a security zone is a logical grouping of interfaces with similar security requirements. An interface can belong to only one security zone at a time , so option A is incorrect. Default zones such as trust, untrust, and local are system-defined and cannot be deleted, which makes B incorrect.

Different security zones are typically assigned different default security levels to define trust relationships and policy direction, so C is also incorrect.

However, multiple physical or logical interfaces can be assigned to the same security zone if they share the same security policy and trust level. For example, several internal LAN interfaces can all be placed in the trust zone, while multiple WAN interfaces can be placed in the untrust zone. Traffic policies are usually applied between zones rather than per interface. Therefore, the correct statement is D

This statement is correct because it accurately reflects the basic objective of information security. In HCIA-Security, information security is concerned with protecting information assets and the systems that store, process, and transmit them. These assets include hardware devices, software platforms, network resources, and the data itself. The purpose is to prevent unauthorized access, accidental loss, malicious tampering, disclosure, destruction, or interruption of services.

Information security is not limited to confidentiality alone. It also includes maintaining integrity , which means preventing unauthorized modification of data, and availability , which means ensuring that systems and services remain usable and continuous for authorized users. In practical terms, this means using controls such as access management, firewalls, intrusion prevention, antivirus protection, encryption, backup, authentication, and monitoring to reduce both accidental and intentional threats.

The phrase about ensuring proper system running and uninterrupted information services also matches the availability goal of security. Therefore, the statement correctly describes the overall aim of information security and is TRUE .

Explanation From HCIA-Security documents:

IPsec secures user traffic mainly through the ESP or AH mechanisms, delivering a combination of confidentiality and authentication-related protections. Data encryption (A) provides confidentiality so that intercepted packets cannot be read by unauthorized parties. This is typically delivered by ESP using symmetric encryption algorithms negotiated during IKE.

For authentication, IPsec provides data origin authentication (B) , meaning the receiver can confirm that packets were generated by the expected peer (the holder of the correct IPsec SA and keys). Along with that, IPsec performs a data integrity check (D) so that any modification to the protected portion of a packet in transit is detected; integrity is commonly provided using an HMAC or authenticated encryption method.

Finally, IPsec also includes anti-replay (C) protection. By using sequence numbers and a replay window, the receiver can detect and discard duplicated old packets, which prevents attackers from capturing encrypted/authenticated traffic and retransmitting it to disrupt sessions or attempt misuse.

Because IPsec secure transmission depends on encryption plus authentication, integrity, and replay protection working together, all four options are correct.