H12-711_V4.0 Exam Dumps - Huawei HCIA-Security Questions and Answers

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.

In LDAP, a Distinguished Name or DN is used to uniquely identify an entry in the directory tree. The DN is composed of a sequence of attribute-value pairs that describe the exact location of an object within the LDAP directory hierarchy. Common attributes used in a DN include CN , DC , and OU .

CN stands for Common Name and is often used to identify a specific user, host, or object. OU stands for Organizational Unit and is used to represent a department or subdivision within the directory structure. DC stands for Domain Component and is commonly used to describe parts of a domain name, such as dc=example,dc=com .

On the other hand, DIT stands for Directory Information Tree . It refers to the overall hierarchical structure of the LDAP directory, not an attribute contained inside a DN. In other words, DIT describes the tree itself, while CN, OU, and DC are actual naming attributes used to build the DN of an LDAP object.

Therefore, the correct attributes contained in the DN are CN, DC, and OU .

Explanation From HCIA-Security documents:

In the TCP/IP and OSI reference models, the transport layer is responsible for end-to-end communication between hosts. It provides services such as segmentation, multiplexing through port numbers, and (depending on the protocol) reliability, flow control, and congestion control. The two core transport layer protocols are TCP and UDP.

TCP is connection-oriented and reliable: it establishes a session using the three-way handshake, uses sequence numbers and acknowledgments for retransmission, and supports flow and congestion control to ensure ordered delivery. UDP is connectionless and best-effort: it does not build a session or guarantee delivery, which makes it lightweight and suitable for scenarios such as voice/video streaming and simple query/response services.

By contrast, FTP and DHCP are application layer protocols. FTP provides file transfer services and runs over TCP ports, while DHCP provides dynamic IP address assignment and uses UDP at the transport layer but is itself an application-layer protocol. Therefore, the transport-layer protocols in the options are UDP and TCP.

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.

Explanation From HCIA-Security documents:

Antivirus software relies heavily on its signature database to identify known malware, suspicious files, and malicious behaviors. Because new threats appear continuously and existing malware is frequently modified to evade detection, the signature library must be updated very often to keep protection effective. Updating every day is the best practice in most enterprise and personal environments, and many antivirus products actually update multiple times per day automatically.

If signatures are updated only monthly , half-monthly , or every three months , there is a large window where newly released malware samples and variants will not be recognized, increasing the chance of infection and successful compromise. Daily updates reduce this exposure window and ensure the antivirus engine has the newest detection patterns, reputation indicators, and sometimes updated heuristic rules released by the vendor.

In addition, daily updates align with operational security expectations: endpoints are exposed to internet content, email attachments, removable media, and downloads on a constant basis, so outdated signatures quickly become a weak link. Therefore, the correct answer is Every day .