Authentic Huawei Certification Exam H12-725_V4.0 Questions Answers

Comprehensive and Detailed Explanation:

Hot standby networkingensureshigh availabilityby keeping a backup firewall ready in case of failure.

Two main modes exist:

Active/Standby Mode→ One firewall is active, and the other remains standby. Configuration is synchronized fromactive → standby.

Load-Sharing Mode→ Both firewallsprocess traffic simultaneously, improving performance.

Why is A false?

InLoad-Sharing Mode, both firewalls are active, butconfiguration synchronization does not cause conflicts. Instead, the firewalls synchronize states properly.

Why is D false?

InLoad-Sharing Mode, configuration is always synchronizedfrom the active firewall to the standby firewall, not the other way around.

HCIP-Security References:

Huawei HCIP-Security Guide → Hot Standby Configuration

Huawei USG Firewalls High Availability Guide

Comprehensive and Detailed Explanation:

1️⃣Understanding HWTACACS:

HWTACACS (Huawei Terminal Access Controller Access-Control System)is aHuawei-proprietaryAAA (Authentication, Authorization, and Accounting) protocol.

It isbased on the TACACS+ protocolbut optimized for Huawei devices.

Why the Statement is False?

The statement contains atechnical inaccuracyabout thetransport protocolused by HWTACACS.

Incorrect:"It uses UDP for transmission."

Correct:HWTACACS uses TCP (Transmission Control Protocol), not UDP.

TACACS+ and HWTACACS both use TCP (port 49) for reliable communication.

Key Features of HWTACACS:

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Why TCP is Used Instead of UDP?

TCP ensures reliable deliveryof AAA messages.

UnlikeRADIUS (which uses UDP), HWTACACS does not suffer from packet loss issuessince TCP provides retransmission and flow control.

Where is HWTACACS Used?

Device Login Authentication→ Securely managesnetwork administrators accessing Huawei routers, switches, and firewalls.

Authorization Control→ Grants specific command-level privileges to users.

Accounting→ Logs command execution for auditing purposes.

Understanding the Differences Between HWTACACS and RADIUS:

HWTACACS(Huawei Terminal Access Controller Access-Control System) is aHuawei-enhanced version of TACACS+used forAAA (Authentication, Authorization, and Accounting).

RADIUS (Remote Authentication Dial-In User Service)is also an AAA protocol but is mainly designed fornetwork access authentication, such asVPNs and wireless authentication.

Why is Option B Correct?

HWTACACS supports per-command authorization, meaning administrators canassign different command privileges to different users.

For example, ajunior network engineer may be allowed to view configurations but not modify them, while asenior engineer has full access.

RADIUS does not support granular command authorization, as it primarily controlsnetwork accessrather than device management.