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Huawei H12-731-ENU Exam Syllabus Topics:

Huawei HCIE-Security (Huawei Certified Internetwork Expert-Security) Sample Questions:

1. Regarding the firewall NAPT technology, the following description is incorrect:

A) NAPT can theoretically achieve 65535 private network addresses sharing a public network address to access the public network.
B) NAPT translates both the source IP address and the source port number.
C) NAPT is a technique for extending Layer 3 addresses with Layer 4 information.
D) When configuring NAPT on the firewall, the security policy should match the IP address after address translation.

2. An FTP server ( DMZ ) on the existing network of the enterprise provides FTP services to the outside ( Untrust ), and a USG firewall is deployed on the external network port.
The following information is obtained by capturing packets on the FTP server:
Sequence Number Source Address Destination Address Protocol Packet Summary
1 1.1.1.1 192.168.1.2 TCP 3318>21 [SYN] Seq=0 Len=0 MSS=1460
2 192.168.1.2 1.1.1.1 TCP 21>3318 [SYN, ACK] Seq=0 Ack=1 Win=65535 Len=0 MSS=1460
3 1.1.1.1 192.168.1.2 TCP 3318>21[SYN] Seq=1 Ack=1 Win=65535 Len=0
......
13 1.1.1.1 192.168.1.2 FTP Request: PASV
14 192.168.1.2 1.1.1.1 FTP Response: 227 Entering Passive Mode (192, 168, 1, 2, 4, 162)
15 1.1.1.1 192.168.1.2 TCP 3319>1186 [SYN] Seq=0 Len=0 MSS=1460
16 192.168.1.2 1.1.1.1 TCP 1186>3319 [SYN, ACK] Seq=0 Ack=1 Win=65535 Len=0 MSS=1460
17 1.1.1.1 192.168.1.2 TCP 3319>1186 [SYN] Seq=1 Ack=1 Win=65535 Len=0
.....
The following descriptions are correct:

A) FTP server FTP service is active mode.
B) The data channel has been established normally between the host 1.1.1.1 and the FFP server 192.168.1.2.
C) The NAT configuration of nat-policy must be completed on the firewall.
D) A servermap entry is automatically generated on the firewall.

3. Use NGFW for SSL VPN connection, use certificate authentication, certificate can be selected, but after clicking login, you cannot log in to the resource page. After using debug check on NGFW, it prompts that the certificate is wrong.
<NGFW>debugging ssl error
<NGFW>terminal debugging
<NGFW>terminal monitor
*0.10012266 USG2130 SSL/7/error:
SSL 3.0, Alert, write, fatal bad certificate
But check that the certificate is complete and the contents of the certificate are correct.
What are the possible reasons for this certificate validation error?

A) The certificate is within the validity period, but the system clock is wrong, and the system clock is not within the validity period.
B) The system clock is correct, but the certificate has expired.
C) When the certificate expires, the system clock is not the current time, but is configured within the certificate's validity period.
D) A browser that does not support SSL3.0 is used.

4. When the IPsec negotiation fails, turn on the debug switch of IKE, and the following information is displayed: got NOTIFY of type INVALID_ID_INFORMATION or drop message from ABCD due to notification type INVALID_ID_INFORMATION, what does it mean?

A) IKE proposals at both ends do not match
B) ACL configurations on both ends do not match
C) LOCAL-ID-TYPE at both ends are inconsistent
D) IPsec proposals at both ends do not match

5. Intranet users can access the Internet normally, and dual links are used for master and backup backup.
For Internet users, the FTP server can be accessed through the public network address. Two public network addresses are announced, 200.1.1.200 and 202.1.1.200.
Which of the following configuration is correct?

A) [USG] ip-link check enable [USG] ip-link 1 destination 202.1.1.2 interface GigabitEthernet 0/0/2 mode icmp [USG] ip route-static 0.0.0.0 0.0.0.0 200.1.1.2 [USG ] ip route-static 0.0.0.0 0.0.0.0 200.1.1.2 preference 70 track ip-link 1
B) [USG] nat server s1 zone untrust1 protocol global 200.1.1.200 ftp inside 192.168.1.254 ftp [USG] nat server s2 zone untrust2 protocol global 202.1.1.200 ftp inside 192.168.1.254 ftp
C) [USG] nat server s1 protocol tcp global 200.1.1.200 ftp inside 192.168.1.254 ftp [USG] nat server s2 protocol tcp global 202.1.1.200 ftp inside 192.168.1.254 ftp
D) USG] ip-link check enable [USG] ip-link 1 destination 200.1.1.2 interface GigabitEthernet 0/0/2 mode icmp [USG] ip route-static 0.0.0.0 0.0.0.0 200.1.1.2 track ip- link 1 [USG] ip route-static 0.0.0.0 0.0.0.0 200.1.1.2 preference 70

Solutions: