[Jan 31, 2026] New Updated H12-725_V4.0 Exam Questions 2026
Updated Free Huawei H12-725_V4.0 Test Engine Questions with 62 Q&As
Obtaining the Huawei H12-725_V4.0 certification can lead to career advancement and professional recognition for IT professionals in the field of network security. HCIP-Security V4.0 certification demonstrates that the holder has the knowledge and skills to design, implement, and manage secure network infrastructures using Huawei security products and technologies.
NEW QUESTION # 37
The figure shows the defense mechanism of an HTTP flood attack. Which source IP detection technology is displayed in the figure?
- A. 302 redirect mode
- B. URI monitoring
- C. Enhanced mode
- D. Basic mode
Answer: C
Explanation:
1##Understanding HTTP Flood Attacks:
* An HTTP flood attackis a type of DDoS attack where an attacker sendsa large number of HTTP requeststo a target server, overloading its resources.
* Attackers often use botnets or spoofed IP addressesto send forged HTTP requests, making it difficult to differentiate between legitimate and malicious traffic.
2##What is Happening in the Figure?
* TheAnti-DDoS devicedetects an abnormally high number of HTTP requests from certain IPs.
* Itchallenges suspicious clientsby requiring them to complete an authentication step (such as entering a verification code).
* Legitimate users can pass the authentication and get whitelisted, while bots and attackers fail to respond and are blocked.
3##Why is "Enhanced Mode" the Correct Answer?
* Enhanced Modeis an advancedsource IP detection technologythat uses verificationcodes or JavaScript challenges to distinguish real users from bots.
* Key features of Enhanced Mode:
* Verification challenge(e.g., CAPTCHA, JavaScript check).
* Whitelisting of verified usersto prevent further verification delays.
* Blocks attack sources that fail to respond to verification.
* In the figure, the systemprompts suspicious users to enter a verification codebefore allowing further access.
* Attackers typicallydo not respond, while legitimate userscomplete the challenge and continue browsing normally.
HCIP-Security References:
* Huawei HCIP-Security Guide# HTTP Flood Attack Protection
* Huawei Anti-DDoS Solution Guide# Source IP Detection Methods
* Huawei WAF Documentation# Enhanced Mode for Web Attack Mitigation
NEW QUESTION # 38
Which of the following statements is false about health check?
- A. Firewalls can detect network connectivity in real time based on the health check result.
- B. Health check supports DNS detection protocols.
- C. The health check function cannot be used together with PBR.
- 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: C
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 # 39
The figure shows the PBR-based injection scenario. Which of the following statements are true about this scenario?(Select All that Apply)
- A. Router1 is a traffic-diversion router.
- B. A traffic-diversion channel is established between 10GE1/0/1 of Router1 and 10GE2/0/1 of the cleaning device.
- C. The cleaning device injects traffic from different Zones to different interfaces (10GE1/0/2 and 10GE1/0
/3) of Router1 based on PBR. - D. After the injected traffic reaches Router1, Router1 forwards the traffic to Router2 or Router3 based on its forwarding mechanism. Finally, the traffic reaches different Zones.
Answer: A,B,C,D
Explanation:
Understanding Policy-Based Routing (PBR) in this Scenario:
* PBR (Policy-Based Routing)is used toredirect and control traffic flowbased on policies instead of traditional routing.
* Router1 is acting as a traffic diversion device, redirecting traffic through acleaning devicebefore sending it to the final destination (Zones).
HCIP-Security References:
* Huawei HCIP-Security Guide# Policy-Based Routing (PBR) and Traffic Diversion
* Huawei CloudCampus Traffic Optimization Guide# Cleaning Device Integration with Routers
* Huawei USG Series Firewall Configuration Guide# Traffic Redirection for Security Inspection
NEW QUESTION # 40
Which of the following statements are true about SYN scanning attacks?(Select All that Apply)
- A. 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.
- B. When the scanner sends a SYN packet, an RST response indicates a closed port.
- C. When the scanner sends a SYN packet, a SYN-ACK response indicates an open port.
- D. 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.
Answer: A,B,C
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 # 41
*In the data filtering profile on the firewall, keyword group "Keyword" is invoked in the upload direction of HTTP applications, the action is block, and the keyword group is invoked in the security policy. Given this, if the regular expression "b.d" is configured in the keyword group "Keyword," which of the following texts can be posted by internal employees on the forum?
- A. boring
- B. bad
- C. abroad
- D. beside
Answer: A
Explanation:
Comprehensive and Detailed Explanation:
* Regular expressions (regex) are used in data filtering to detect patterns in traffic.
* *b.d Explanation:
* b# The word must start with 'b'.
* .* # Matches any number of characters (wildcard).
* d# The word must end with 'd'.
* Testing the given words:
* A. abroad (#matches)# Starts with "b" but does not end with "d".
* B. beside (#matches)# Starts with "b" but does not end with "d".
* C. boring (#allowed)# Doesnotstart with "b" and end with "d" (safe to post).
* D. bad (#blocked)# Starts with "b" and ends with "d" (matches the regex).
* Why is C correct?
* "boring" does not match the regex pattern, so it is not blocked.
HCIP-Security References:
* Huawei HCIP-Security Guide # Regular Expressions in Data Filtering
NEW QUESTION # 42
In a Huawei network security environment, which of the following is a key advantage of using HWTACACS over RADIUS for device management authentication?
Options:
- A. HWTACACS does not support accounting, while RADIUS does.
- B. HWTACACS operates over UDP, ensuring faster communication than RADIUS.
- C. HWTACACS provides per-command authorization, allowing different privilege levels for different users.
- D. HWTACACS encrypts only passwords, while RADIUS encrypts the entire payload.
Answer: C
Explanation:
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 access rather than device management.
NEW QUESTION # 43
When gateways are connected using GRE over IPsec, the IPsec encapsulation mode must be tunnel mode.
- A. TRUE
- B. FALSE
Answer: A
Explanation:
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
NEW QUESTION # 44
If a Portal authentication user goes offline but neither the access device nor the RADIUS server detects this event, many problems may occur. To prevent this from occurring, the access device needs to detect a user logout immediately, delete the user entry, and instruct the RADIUS server to stop accounting.
Which of the following can trigger a Portal user logout?(Select All that Apply)
- A. The Portal server logs out the user.
- B. The authentication server logs out the user.
- C. The access device logs out the user.
- D. The user initiates a logout request.
Answer: A,B,C,D
Explanation:
Comprehensive and Detailed Explanation:
* Portal authentication requires active session monitoring.
* User logout can be triggered by multiple methods:
* A. Portal server logout# The Portal system forcefully logs out a user.
* B. Authentication server logout# The authentication system revokes access.
* C. User-initiated logout# The user manually logs out via a Portal page.
* D. Access device logout# If the firewall detects inactivity, it can remove the session.
* Why are all options correct?
* Each method can trigger a user logout in Portal authentication.
HCIP-Security References:
* Huawei HCIP-Security Guide # Portal Authentication Logout Mechanisms
NEW QUESTION # 45
Authentication rules configured on iMaster NCE-Campus support multiple matching conditions, such as matching account information, SSID information, and terminal IP address ranges, so that different authentication rules can be executed for different users.
- A. TRUE
- B. FALSE
Answer: A
Explanation:
Comprehensive and Detailed Explanation:
* iMaster NCE-Campus authentication supports multi-condition matching:
* Account information(e.g., username, password, role-based policies).
* SSID information(specific Wi-Fi network authentication).
* Terminal IP address ranges(assigns different policies based on network segments).
* Why is this statement true?
* Multiple authentication conditions can be applied simultaneously to enforce flexible access control.
HCIP-Security References:
* Huawei HCIP-Security Guide # iMaster NCE-Campus Authentication Policy
NEW QUESTION # 46
In the figure, enterprise A and enterprise B need to communicate securely, and an IPsec tunnel is established between firewall A and firewall B. Which of the following security protocols and encapsulation modes can meet the requirements of this scenario?
- A. ESP; transport mode
- B. AH; tunnel mode
- C. ESP; tunnel mode
- D. AH+ESP; transport mode
Answer: C
Explanation:
1##Understanding the Scenario:
* Enterprise A and Enterprise B communicate over the Internet through an IPsec tunnel.
* Firewall A and Firewall B establish the tunnelto secure traffic between the enterprises.
* The network includes aSource NAT device, meaning IP headers may be modified.
* The goal is to ensure confidentiality, integrity, and authentication of data transmission.
2##Why ESP (Encapsulating Security Payload)?
* ESP (Encapsulating Security Payload)provides:
* Encryption (Confidentiality)# Protects data from eavesdropping.
* Integrity & Authentication# Ensures data is not modified.
* NAT Traversal Support# Works through NAT devices, unlike AH (Authentication Header).
* ESP is the preferred choice for VPN tunnels over the public Internet.
3##Why Tunnel Mode?
* Tunnel Mode encapsulates the entire original IP packet, including headers and payload,adding a new IP header.
* Advantages of Tunnel Mode:
* Protects both the data and the original IP addresses(important for communication over untrusted networks).
* Used in site-to-site VPNswhere private network addresses need to be hidden.
HCIP-Security References:
* Huawei HCIP-Security Guide# IPsec VPN Fundamentals
* Huawei USG Series Firewall Configuration Guide# IPsec ESP vs. AH
* RFC 4301 (Security Architecture for the Internet Protocol)# ESP and Tunnel Mode Usage
NEW QUESTION # 47
Match the description about virtual systems and VPN instances.
Answer:
Explanation:
Explanation:
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 of interfaces, policies, and routing settings.
NEW QUESTION # 48
SYN scanning requires a fully established TCP connection and is recorded in system logs.
- A. TRUE
- B. FALSE
Answer: B
Explanation:
Comprehensive and Detailed Explanation:
* SYN scanning is a stealthy TCP scanning technique used by attackers to detect open ports.
* How SYN scanning works:
* The attacker sends aSYN packetto a target port.
* If the port isopen, the target responds with aSYN-ACK.
* Instead of completing the handshake with anACK, the attacker sends anRST (reset) packet, leaving the connection half-open.
* Why is this statement false?
* SYN scanning does NOT establish a full connection (three-way handshake).
* It may not always be recorded in system logs, depending on firewall settings.
HCIP-Security References:
* Huawei HCIP-Security Guide # TCP SYN Scanning & Intrusion Detection
NEW QUESTION # 49
Trojan horses may disclose sensitive information of victims or even remotely manipulate victims' hosts, causing serious harm. Which of the following are the transmission modes of Trojan horses?(Select All that Apply)
- A. A Trojan horse is bundled in a well-known tool program.
- B. Attackers exploit vulnerabilities to break into hosts and install Trojan horses.
- C. A Trojan horse masquerades as a tool program to deceive users to run the program on a host. Once the program is run, the Trojan horse is automatically implanted into the host.
- D. The software downloaded from a third-party downloader carries Trojan horses.
Answer: A,B,C,D
Explanation:
Comprehensive and Detailed Explanation:
* A Trojan horse is a type of malware that disguises itself as a legitimate applicationto trick users into installing it.
* Transmission methods:
* A. Exploiting vulnerabilities# Attackers use system/software vulnerabilities to inject Trojans.
* B. Bundled in software# Trojans are included in cracked software or pirated applications.
* C. Downloaded from third-party sites# Users unknowingly install malware from untrusted sources.
* D. Masquerading as useful software# Fake tools trick users into installation.
* Why are all options correct?
* All listed methods are common ways Trojans spread.
HCIP-Security References:
* Huawei HCIP-Security Guide # Malware & Trojan Horse Attacks
NEW QUESTION # 50
Arrange the steps of the bandwidth management process on firewalls in the correct sequence.
Answer:
Explanation:
Explanation:
A screenshot of a computer screen AI-generated content may be incorrect.
HCIP-Security References:
* Huawei HCIP-Security Guide# Bandwidth Management & Traffic Control Policies
* Huawei QoS Configuration Guide# Traffic Classification, Policing, and Queue Scheduling
1##Step 1: Traffic Classification and Bandwidth Policy Matching
* The firewallfirst classifies trafficusing predefined bandwidth policies.
* These policies match traffic based on criteria such assource/destination IP, application type, and protocol.
* This step ensures that each type of traffic is categorized correctly before applying bandwidth restrictions.
2##Step 2: Traffic Processing Based on Bandwidth Policies
* Once traffic is classified,the firewall enforces bandwidth limits and security actions:
* Traffic exceeding the assigned bandwidth is discarded or throttled.
* Service connection limits are enforced to prevent excessive connections per user or application.
3##Step 3: Queue Scheduling and Priority Handling
* If trafficexceeds the available bandwidth, the firewallprioritizes high-priority trafficusing queue scheduling mechanisms.
* Techniques likeWeighted Fair Queuing (WFQ) and Priority Queuing (PQ)ensure thatcritical traffic (e.g., VoIP, business applications) is prioritized over less important traffic (e.g., downloads, streaming).
NEW QUESTION # 51
During deployment of Portal authentication, an authentication-free rule profile needs to be configured to ensure Portal pages can be opened on authentication terminals. To achieve this purpose, the following traffic needs to be permitted in the authentication-free rule profile: DNS resolution traffic of user terminals, traffic from user terminals for accessing Portal pages, and traffic from user terminals to the RADIUS server.
- A. TRUE
- B. FALSE
Answer: A
Explanation:
Comprehensive and Detailed Explanation:
* Authentication-free rules allow unauthenticated users to access essential services before login.
* The following traffic must be allowed before authentication:
* DNS traffic# Users need to resolve domain names for the Portal page.
* Portal page access# The captive portal must be reachable.
* RADIUS server communication# Users must authenticate via RADIUS.
* Why is this statement true?
* Without these authentication-free rules, users would be unable to reach thePortal login page.
HCIP-Security References:
* Huawei HCIP-Security Guide # Portal Authentication-Free Rules
NEW QUESTION # 52
Which of the following is not a response action for abnormal file identification?
- A. Allow
- B. Block
- C. Alert
- D. Delete
Answer: A
Explanation:
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
NEW QUESTION # 53
Which of the following methods are used by flood attacks to cause denial of services?(Select All that Apply)
- A. Exhaust server-side resources.
- B. Exhaust network device resources.
- C. Exhaust available bandwidth.
- D. Control network host rights.
Answer: A,B,C
Explanation:
Comprehensive and Detailed Explanation:
* Flood attacks (DoS/DDoS) overwhelm network resources, preventing normal users from accessing services.
* Correct answers:
* A. Exhaust available bandwidth# Large amounts of traffic saturate the network.
* B. Exhaust server-side resources# High CPU/memory usage causes server crashes.
* D. Exhaust network device resources# Firewalls, routers, and switches become overloaded.
* Why is C incorrect?
* Controlling host rights is related to hacking, not flooding attacks.
HCIP-Security References:
* Huawei HCIP-Security Guide # DoS/DDoS Attack Prevention
NEW QUESTION # 54
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