- Exam Code: H12-731-ENU
- Exam Name: HCIE-Security (Huawei Certified Internetwork Expert-Security)
- Updated: Aug 30, 2026
- Q & A: 205 Questions and Answers
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| Section | Objectives |
|---|---|
| Network Security Fundamentals | - Common attack types and defense mechanisms - Security principles and models |
| Network Defense and Intrusion Prevention | - IDS/IPS systems - Anti-DDoS technologies |
| Secure Network Access Control | - AAA and RADIUS systems - 802.1X authentication |
| Perimeter Security Technologies | - Firewall technologies and deployment - VPN technologies (IPSec / SSL VPN) |
| Security Operations and Maintenance | - Security monitoring and incident response - Security policies and logs |
Question 1
The user cannot log in to the management device through SSH, and the following configuration information is obtained. Please analyze the possible causes:
aaa
manager-user sshuser
password cipher Admin@123
service-type ssh
ssh authentication-type password
ssh service-type stelnet
authentication-scheme admin_local
#
user-interface vty o 4
authentication-mode aaa
protocol inbound ssh
#
return
A. If the login interface is not the device management interface, you need to execute service-manager ssh permit under the interface
B. The domain of aaa is not configured and its authentication method is specified as local
C. The administrator has not configured the stelnet server enable command in the system view
D. level 3 not configured for sshuser user
Question 2
The WeChat voice (TCP) service of a site experienced a large delay, and the delay reached 3 seconds. As its egress NAT gateway, the firewall is configured with easy-ip nat mode (single egress), with link state detection disabled, TCP aging time of 30 seconds, small business traffic, and nearly 50,000 sessions to the voice server. Through the session, you can see a large number of packets of one-way access to the voice server.
What is the correct cause and solution for this failure?
A. After the firewall session is aging, the port after the NAT of the new connection is inconsistent with the port used to establish the connection with the server, resulting in no response from the server. The client needs to re-establish the connection after timeout before sending data.
B. The aging time of the TCF session is too short, and it takes time for the firewall to create a new session.
C. If there is no inconsistency between the round-trip paths on the link, you can enable the link status detection function, and the aging time is default, which can solve this problem.
D. The solution could increase the TCP aging time to 600 seconds.
Question 3
The ISO27000 series includes several security standards, which of these standards are relevant to information security technology risk management:
A. ISO27002
B. ISO27005
C. ISO27003
D. ISO27004
Question 4
NGFW_A and NGFW_B, NGFW_A and NGFW_C configure static routes respectively. NGFW_A -> NGFW_B is the primary link, NGFW_A -> NGFW_C is the backup link. It is required that the traffic can be quickly switched to the backup link when the primary link fails; the traffic can be switched to the primary chromium road after the primary link is restored.
Which of the following configurations is correct?
A. [USG_A] bfd
[USG_A] bfd ab bind peer-ip 10.1.1.2
[USG_A-bfd-session-ab] discriminator local 10
[USG_A-bfd-session-ab] discriminator remote 20
[USG_A-bfd-session-ab] commit
[USG_A] ip route-static 0.0.0.0 0 10.1.1.2
[USG_A] ip route-static 0.0.0.0 0 20.1.1.2 preference 100 track bfd-session ab
B. [USG_B] bfd
[BSG_B] bfd ab bind peer-ip 10.1.1.1
[USG_B-bfd-session-ab] discriminator local 20
[USG_B-bfd-session-ab] discriminator remote 10
[USG_B-bfd-session-ab] commit
C. [USG_B] bfd
[BSG_B] bfd ab bind peer-ip 10.1.1.1
[USG_B-bfd-session-ab] discriminator local 10
[USG_B-bfd-session-ab] discriminator remote 20
[USG_B-bfd-session-ab] commit
D. [USG_A] bfd
[USG_A] bfd ab bind peer-ip 10.1.1.2
[USG_A-bfd-session-ab] discriminator local 10
[USG_A-bfd-session-ab] discriminator remote 20
[USG_A-bfd-session-ab] commit
[USG_A] ip route-static 0.0.0.0 0 10.1.1.2 track bfd-session ab
[USG_A] ip route-static 0.0.0.0 0 20.1.1.2 preference 100
Question 5
Determine which QoS technology the USG device uses according to the following status information:
[USG_A] display qos policy interface tunnel 1
Interface: GigabitEthernet0/0/1
Direction: Outbound
Policy: dscp
Classifier: default-class
Matched: 0/0
(Packets/Bytes)
Rule(s): if-match any
Behavior: be
-none-
Classifier: server
Matched: 480154/41293244
(Packets/Bytes)
Offered rate: 7244746 bps, drop
rate: 242352 bps
Operator: AND
Rule(s): if-match acl 2001
Behavior: server
Assured Forwarding:
Bandwidth 40000
(Kbps)
Matched:
713659/71365900 (Packets/Bytes)
Enqueued:
36606/3660600 (Packets/Bytes)
Discarded:
677053/67705300 (Packets/Bytes)
Classifier: pc
Matched: 478498/41150828
(Packets/Bytes)
Offered rate: 7344746 bps, drop
rate: 342352
Operator: AND
Rule(s): if-match acl 2002
Assured Forwarding:
Bandwidth 40000 (Kbps)
Matched:
765394/76539400 (Packets/Bytes)
Enqueued:
39235/3923500 (Packets/Bytes)
Discarded:
726159/72615900 (Packets/Bytes)
Classifier: telephone
Matched: 550057/47304902
(Packets/Bytes)
Offered rate: 8244746 bps, drop
rate: 252352 bps
Operator: AND
Rule(s): if-match acl 2003
Behavior: telephone
Expedited Forwarding:
Bandwidth 240000
(Kbps), CBS 600000 (Bytes)
Matched:
765644/76564400 (Packets/Bytes)
Enqueued:
70553/7055300 (Packets/Bytes)
Discarded:
695091/69509100 (Packets/Bytes)
A. GTS
B. CBWFQ
C. WRED
D. CAR
Solutions:
| Question 1 Answer: A,C,D | Question 2 Answer: A,C | Question 3 Answer: B | Question 4 Answer: B,D | Question 5 Answer: B |
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