Pass H12-725_V4.0 Exam Guide

Comprehensive and Detailed Explanation:

GRE over IPsecis used totunnel non-IP traffic, multicast, and dynamic routing protocolsover IPsec VPN.

Tunnel mode is requiredbecause:

Transport mode only encrypts the payload, but GRE needs the entireoriginal IP packet encrypted.

Tunnel mode encrypts the entire packet(original + GRE headers), ensuring full encapsulation.

Why is this statement true?

GRE over IPsec must use tunnel modeto fully encapsulate and protect packets.

HCIP-Security References:

Huawei HCIP-Security Guide → GRE over IPsec Configuration

Comprehensive and Detailed Explanation:

Windows system hardening improves security by reducing attack surfaces.

Recommended security measures include:

A. Periodically checking account permissions→ Prevents unauthorized access.

B. Canceling default sharing→ Reduces exposure to remote attacks.

C. Restricting the number of users→ Limits access to essential personnel.

Why is D incorrect?

Changing the default TTL value does not directly enhance system security.

HCIP-Security References:

Huawei HCIP-Security Guide → Windows Hardening Best Practices

Comprehensive and Detailed Explanation:

PBR (Policy-Based Routing)allows traffic to be forwarded based on specific policies.

All options are correctsince Huawei PBR can match:

A→ Source IP address

B→ Source security zone

C→ Source MAC address

D→ Application

HCIP-Security References:

Huawei HCIP-Security Guide → Policy-Based Routing Configuration

Comprehensive and Detailed Explanation:

Quota control policiesregulateuser access and resource usagebased on bandwidth and time constraints.

All options are correctsince Huawei firewalls support:

A→ Restricting the daily online duration.

B→ Restricting the total monthly online traffic.

C→ Restricting the total daily online traffic.

D→ Restricting the total online duration per month.

HCIP-Security References:

Huawei HCIP-Security Guide → User Quota Control Policies