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Huawei H12-725_V4.0: HCIP-Security V4.0 exam is a certification exam that is designed to test the knowledge of IT professionals in the field of security. H12-725_V4.0 exam is part of the Huawei Certified ICT Professional Security Certification program and is intended for individuals who are interested in becoming certified security professionals. H12-725_V4.0 Exam focuses on various security topics such as network security, firewall technology, VPN technology, and security management.

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Huawei HCIP-Security V4.0 Sample Questions (Q27-Q32):

NEW QUESTION # 27
Which of the following statements is false about health check?

A. The health check function cannot be used together with PBR.
B. Health check supports DNS detection protocols.
C. Firewalls can detect network connectivity in real time based on the health check result.
D. In addition to link connectivity detection, health check can also detect the delay, jitter, and packet loss rate of links in real time.

Answer: A

Explanation:
Comprehensive and Detailed Explanation:
* Health checkensuresnetwork reliabilityby detecting link failures.
* Supports multiple protocols: ICMP, TCP, UDP, DNS, and HTTP.
* Works with PBR (Policy-Based Routing):
* Health checkmonitors link status, and if a failure is detected,PBR dynamically switches to an alternate path.
* Why is C false?
* Health check CAN be used with PBRto ensure traffic is routed via healthy links.
HCIP-Security References:
* Huawei HCIP-Security Guide # Health Check Configuration

NEW QUESTION # 28
Which of the following statements is false about the restrictions on configuring bandwidth profiles in parent and child policies on a firewall?

A. The parent and child policies must reference different bandwidth profiles.
B. The maximum bandwidth specified in a child policy cannot be greater than that specified in the parent policy.
C. The connection limit specified in a child policy cannot be smaller than that specified in the parent policy.
D. Both the parent and child policies must both use the same traffic limiting mode; that is, either "setting the upstream and downstream bandwidths" or "setting the overall bandwidth".

Answer: A

Explanation:
Comprehensive and Detailed Explanation:
* Bandwidth policies use a hierarchical structure(Parent # Child).
* Child policies must follow parent policiesin terms of bandwidth restrictions.
* Why is C false?
* A parent and childcan use the same bandwidth profile.
* The firewall allowsinheritanceof bandwidth settings.
HCIP-Security References:
* Huawei HCIP-Security Guide # Bandwidth Management and Policy Configuration

NEW QUESTION # 29
When Eth-Trunk is deployed for the heartbeat links between firewalls, the Eth-Trunk interface can be configured as a Layer 2 interface as long as the total bandwidth of active links on the Eth-Trunk is greater than 30% of the bandwidth required by service traffic.

A. FALSE
B. TRUE

Answer: A

Explanation:
Comprehensive and Detailed Explanation:
* Heartbeat linksbetween firewalls ensuresynchronization and failover.
* Layer 2 or Layer 3 configuration depends on deployment needs, but there isno strict 30% bandwidth rulefor Eth-Trunk heartbeat links.
* Why is this statement false?
* The30% threshold condition is incorrect.
* Eth-Trunk heartbeat links aretypically Layer 3 for better failover and routing control.
HCIP-Security References:
* Huawei HCIP-Security Guide # Firewall High Availability Deployment

NEW QUESTION # 30
In the figure, if 802.1X authentication is used for wired users on the network, the network admission device and terminals must be connected through a Layer 2 network.

Options:

A. TRUE
B. FALSE

Answer: A

Explanation:
Understanding 802.1X Authentication in Wired Networks:
* 802.1X is a port-based network access control (PNAC) protocolthat requires aLayer 2 connection between thesupplicant (PC), the authenticator (switch), and the authentication server (e.g., RADIUS server).
* In wired networks,802.1X authentication occurs at the Ethernet switch (Layer 2 device), which enforces authenticationbefore allowing network access.
Why Must the Network Be Layer 2?
* 802.1X authentication operates at Layer 2 (Data Link Layer) before any IP-based communication (Layer 3) occurs.
* If the authentication device and user terminal were on different Layer 3 networks, the authentication packets (EAPOL - Extensible Authentication Protocol Over LAN)would not be forwarded.
* In the figure, the authentication control point is at theaggregation switch, which means thePC and switch must be in the same Layer 2 domain.
Components of 802.1X Authentication in the Figure:
* Supplicant (PC)# The device requesting network access.
* Authenticator (Aggregation Switch)# The switch controlling access to the network based on authentication results.
* Authentication Server (iMaster NCE-Campus & AD Server)# Verifies user credentials and grants or denies access.
* Layer 2 Connectivity Requirement# ThePC must be in the same Layer 2 networkas the Authenticatorto communicate via EAPOL.
Why "TRUE" is the Correct answer:
* 802.1X authentication is performed before IP addresses are assigned, meaning it can only operate in a Layer 2 network.
* EAPOL (Extensible Authentication Protocol Over LAN) messages are not routableand must stay within a single Layer 2 broadcast domain.
* In enterprise networks,VLAN-based 802.1X authentication is often used, where authenticated users are assigned to a specific VLAN.
HCIP-Security References:
* Huawei HCIP-Security Guide# 802.1X Authentication in Enterprise Networks
* Huawei iMaster NCE-Campus Documentation# Authentication Control and NAC Deployment
* IEEE 802.1X Standard Documentation# Layer 2 Network Authentication

NEW QUESTION # 31
Which of the following statements are true about SYN scanning attacks?(Select All that Apply)

A. When the scanner sends a SYN packet, if the peer end responds with a SYN-ACK packet, the scanner then responds with an ACK packet to complete the three-way handshake.
B. When the scanner sends a SYN packet, a SYN-ACK response indicates an open port.
C. When the scanner sends a SYN packet, an RST response indicates a closed port.
D. If the peer end does not respond to the SYN packet sent by the scanner, the peer host does not exist, or filtering is performed on the network or host.

Answer: B,C,D

Explanation:
Comprehensive and Detailed Explanation:
* SYN scanning is a stealthy technique used to identify open ports on a target system without fully establishing a TCP connection.
* How SYN scanning works:
* The scanner sends aSYN packetto the target port.
* The target responds based on the port state:
* SYN-ACK # Port is open(Correct - D).
* RST # Port is closed(Correct - A).
* No response # The host does not exist, or a firewall is blocking it(Correct - B).
* The scanner doesnot send an ACK(unlike a full TCP connection). Instead, it sends anRSTto avoid detection.
* Why is C incorrect?
* In SYN scanning, the scanner does NOT send an ACK to complete thehandshake. Instead, it sends an RST to abort the connection.
HCIP-Security References:
* Huawei HCIP-Security Guide # SYN Scanning Techniques

NEW QUESTION # 32
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