Huawei H12-725_V4.0 - HCIP-Security V4.0 Exam

Comprehensive and Detailed Explanation:

Threshold settings in firewalls allow administrators to define:

Alarm threshold→ When exceeded, logs are generated.

Block threshold→ When exceeded, the action is blocked.

Why is B false?

The alarm threshold does not block traffic; it only generates logs.

Only the block threshold enforces blocking actions.

HCIP-Security References:

Huawei HCIP-Security Guide → HTTP Traffic Control

Comprehensive and Detailed Explanation:

VLAN authorization in Portal authentication requires additional configuration.

To assign VLANs dynamically:

RADIUSmust return VLAN attributesafter authentication.

TheWAC (Wireless Access Controller) must be configured to support dynamic VLAN assignment.

Why is this statement false?

VLAN authorization requires RADIUS attributes and WAC configuration—it is not automatic.

HCIP-Security References:

Huawei HCIP-Security Guide → WLAN & Portal Authentication

Comprehensive and Detailed Explanation:

IPsec VPN only supports IP unicast traffic.

Non-IP unicast packets (such as multicast and broadcast) are not natively supported.

To transmit multicast traffic over IPsec, GRE over IPsec is required.

Why is this statement true?

Standard IPsec VPN does not support non-IP unicast packets.

HCIP-Security References:

Huawei HCIP-Security Guide → IPsec VPN Limitations

Comprehensive and Detailed Explanation:

ATIC (Advanced Threat Intelligence Center) systemconsists of:

SecoManager (Management Center)→ Manages security policies.

Detection devices→ Analyze traffic for threats.

Cleaning devices→ Mitigate attacks.

Why is B false?

ATIC architecture does not include a "collector and controller" structure.

HCIP-Security References:

Huawei HCIP-Security Guide → ATIC System Architecture

Comprehensive and Detailed Explanation:

Response actions for abnormal file identification in Huawei firewalls include:

A. Alert→ Logs the event but does not stop the file.

B. Block→ Prevents the file from being accessed or downloaded.

D. Delete→ Removes the malicious file before it reaches the user.

Why is C incorrect?

Allowing an identified abnormal file defeats the purpose of security enforcement.

HCIP-Security References:

Huawei HCIP-Security Guide → File Anomaly Detection & Response

Comprehensive and Detailed Explanation:

Firewalls enforce security policies based on rules defined by the administrator.

Data filtering rules must be explicitly referenced in security policies to take effect.

Why is this statement true?

If a filtering rule exists but is not linked to a security policy, it will not apply to network traffic.

HCIP-Security References:

Huawei HCIP-Security Guide → Data Filtering Policy Configuration

Comprehensive and Detailed Explanation:

Host check policyis a security mechanism inSSL VPNto verifyterminal security compliancebefore granting access.

It checks for:

Antivirus software

Operating system patches

Running processes

Security settings

If the terminal fails the host check, access is denied.

Why is this statement true?

A successful host check is required before an SSL VPN session is allowed.

HCIP-Security References:

Huawei HCIP-Security Guide → SSL VPN Host Check Policy

1. Virtual System → Services and routes can be isolated.

A virtual system (VS)in Huawei firewalls is afully isolated security instancewithin a single physical firewall.

Each virtual system hasseparate services, routing tables, policies, and security rules, ensuring full isolation between different users or tenants.

2. VPN Instance → Only route isolation can be implemented.

AVPN instance (VRF - Virtual Routing and Forwarding)providesroute isolationfor different customer networks butdoes not isolate services or security policies.

This is typically used inMPLS VPN deploymentswhere different customers share the same physical device but need isolated routing tables.

3. VPN Instance → VPN instances are automatically generated.

In someMPLS VPNorSDN-managed networks, VPN instances can beautomatically createdwhen customer configurations are pushed via controllers.

Dynamic routing protocols (e.g., BGP/MPLS VPN) can automatically generateVRF instancesbased on network policies.

4. Virtual System → An instance needs to be manually created.

Unlike VPN instances,virtual systems must be manually createdby an administrator on the firewall.

Each virtual system functions as acompletely independent firewall, requiring manual configuration ofinterfaces, policies, and routing settings.