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Huawei H12-725_V4.0 (HCIP-Security V4.0) Certification Exam covers a wide range of topics related to network security, including network security technologies, security risk management, security policies and regulations, firewall technology, VPN technologies, and attack defense technologies. H12-725_V4.0 Exam also tests the candidates' ability to design security solutions and troubleshoot network security issues.

Huawei HCIP-Security V4.0 Sample Questions (Q52-Q57):

NEW QUESTION # 52
The Nginx application is deployed on a Linux host. By checking Nginx logs, O&M engineers can obtain the complete URL information submitted by users and determine whether the Linux host is under SQL injection attacks.

A. FALSE
B. TRUE

Answer: B

Explanation:
Comprehensive and Detailed Explanation:
* Nginx logs store detailed HTTP request information, including:
* RequestedURLs
* ClientIP addresses
* Query parameters(which may contain SQL injection attempts)
* SQL injection detection using logs:
* SuspiciousSQL keywordsin GET/POST requests (e.g., ' OR 1=1 -- or UNION SELECT).
* Repeated attack attemptsfrom a single source IP.
* Why is this statement true?
* Nginx logs provide full request details, enabling engineers to detect SQL injection attempts.
HCIP-Security References:
* Huawei HCIP-Security Guide # Web Attack Detection & Log Analysis

NEW QUESTION # 53
When an IPsec VPN is established in aggressive mode, AH+ESP can be used to encapsulate packets in NAT traversal scenarios.

A. FALSE
B. TRUE

Answer: A

Explanation:
Comprehensive and Detailed Explanation:
* Aggressive modeis a faster IKE Phase 1 negotiation method butdoes not support NAT traversal (NAT-T) with AH.
* NAT-T only works with ESP, because:
* AH includes the original IP header in its integrity check, which breaks when NAT modifies the IP address.
* ESP works with NAT-Tsince it does not include the original IP header in its integrity check.
* Why is this statement false?
* AH does not support NAT-T, soAH+ESP cannot be used in NAT traversal scenarios.
HCIP-Security References:
* Huawei HCIP-Security Guide # IPsec VPN NAT Traversal

NEW QUESTION # 54
In the figure, FW_A connects to FW_B through two links working in active/standby mode. When the active link of FW_A is faulty, the old IPsec tunnel 1 needs to be torn down, and IPsec tunnel 2 needs to be established with FW_B through the standby link to route traffic. In this case, configuring the IKE _____ detection mechanism on FW_A helps detect link faults and tear down the IPsec tunnel.(Enter lowercase letters.)

Answer:

Explanation:
dpd
Explanation:
* What is IKE DPD (Dead Peer Detection)?
* IKE DPD (Dead Peer Detection)is a mechanism used inIPsec VPNsto check if a remote VPN peer is still reachable.
* It allows the firewall to detectlink failuresandautomatically tear down and re-establish IPsec tunnelswhen necessary.
* Why is DPD required in this scenario?
* The network uses an active/standby link setup:
* IPsec Tunnel 1 (Active) # Uses Link 1 (GE0/0/1).
* IPsec Tunnel 2 (Standby) # Uses Link 2 (GE0/0/2).
* IfLink 1 fails, the firewall must detect the failure andtear down IPsec Tunnel 1before establishingIPsec Tunnel 2 over Link 2.
* DPD detects unreachable peersand triggers a failover.
* How does IKE DPD work?
* DPD periodically sends probes (HELLO messages) to the remote VPN peer.
* If no response is received within a timeout period, the firewall assumes the peer is down.
* Thefirewall deletes the IPsec tunnel and switches to the backup link.
* Why is the answer "dpd" (lowercase)?
* The questionexplicitly asks for lowercase letters.
* "dpd" (Dead Peer Detection) is the correct technical term in Huawei firewalls and networking standards.
HCIP-Security References:
* Huawei HCIP-Security Guide# IPsec VPN High Availability & DPD
* Huawei USG Series Firewall Configuration Guide# IKE Dead Peer Detection (DPD)

NEW QUESTION # 55
Multiple links can be deployed at the egress of an enterprise network to improve network reliability.

A. FALSE
B. TRUE

Answer: B

Explanation:
Comprehensive and Detailed Explanation:
* Deploying multiple egress linksensures:
* Redundancy# If one link fails, another remains active.
* Load balancing# Traffic can be distributed across multiple links.
* High availability# Reduces downtime.
* Why is this statement true?
* Enterprise networksbenefit from multiple egress links.
HCIP-Security References:
* Huawei HCIP-Security Guide # Network Redundancy and High Availability

NEW QUESTION # 56
Which of the following statements is false about hot standby networking?(Select All that Apply)

A. In load-sharing mode, both devices process traffic. Therefore, this mode supports more peak traffic than the active/standby or mirroring mode.
B. In load-sharing mode, both firewalls are active. Therefore, if both firewalls synchronize commands to each other, commands may be overwritten or conflict with each other.
C. In load-sharing mode, configuration commands can be backed up only from the configuration standby device to the configuration active device.
D. In active/standby mode, configuration commands and status information are backed up from the active device to the standby device.

Answer: B,C

Explanation:
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

NEW QUESTION # 57
......

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