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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Encryption and PKI | 10% | - Application of encryption technologies - Encryption and decryption basics - PKI and certificate system |
| Topic 2: Firewall Basics and Security Policies | 20% | - Stateful inspection and session management - Firewall principles, deployment modes and security zones - Security policy configuration and management |
| Topic 3: VPN Technologies and Applications | 15% | - IPsec VPN, IKE protocol - GRE, L2TP, SSL VPN principles and configuration - VPN basics and classification |
| Topic 4: Network Security Concepts and Basics | 15% | - Common security threats and defense methods - Network security concepts, standards and regulations - Basic network knowledge related to security |
| Topic 5: Firewall High Availability | 10% | - HRP and VGMP technology - HA principles and modes - Dual-system hot standby configuration |
| Topic 6: User Management and AAA | 10% | - Local and remote user management - Authentication, Authorization and Accounting principles - RADIUS, HWTACACS protocol |
| Topic 7: Attack Defense and Content Security | 10% | - URL filtering, antivirus and content filtering - Common attack types and defense mechanisms - Intrusion Prevention System (IPS) |
| Topic 8: Firewall NAT Technology | 10% | - NAT server and bidirectional NAT - Source NAT, Destination NAT configuration - NAT principles and classification |
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110. Frage
When the heartbeat interface is not configured with an IP address, it will be in the invalid state.
Antwort: B
111. Frage
Which of the following descriptions of intrusion prevention signatures are correct? (Multiple Choice)
Antwort: B,C,D
112. Frage
Sub-interfaces can be created on GE0/0/1 of a firewall. The sub-interfaces can be added to different VLANs, but cannot be added to security zones.
Antwort: B
Begründung:
Huawei firewalls support creating multiple sub-interfaces on a single physical interface such as GE0/0/1 so that one physical link can carry traffic for multiple VLANs. Each sub-interface is configured with an 802.1Q VLAN tag, which allows it to logically represent one VLAN or one Layer 3 gateway interface for that VLAN.
This design is commonly used when the firewall connects to a switch through a trunk and needs to provide routing and security control for several VLANs simultaneously.
The statement is incorrect because sub-interfaces can be added to security zones. A security zone is a logical security domain used for policy enforcement, and Huawei firewalls allow both physical interfaces and logical interfaces (including VLAN sub-interfaces) to be assigned to zones. This is essential for implementing interzone security policies between VLANs. For example, if two VLANs are mapped to two different sub- interfaces, placing each sub-interface into a different zone allows the firewall to apply access control, inspection profiles, and NAT based on zone-to-zone rules. Therefore, the claim that sub-interfaces cannot be added to security zones is false.
113. Frage
Arrange the following processes in the correct order based on the PKI lifecycle.
Antwort:
Begründung:
Explanation:
* Certificate application
* Certificate issuing
* Certificate storage
* Certificate verification
* Certificate usage
* Certificate update
* Certificate revocation
The PKI lifecycle describes the complete process a digital certificate goes through from creation to termination. The first stage is certificate application , where a user or device generates a key pair and submits a certificate request to the certification authority or registration authority.
After the request is approved, the CA performs certificate issuing , which involves creating and signing the certificate using the CA's private key. Once issued, the certificate must be securely saved on the device, which is the certificate storage phase. Proper storage ensures that the certificate and the associated private key can be safely used when authentication or encryption is required.
Before using a certificate in communication, systems perform certificate verification . This step checks the certificate chain, validity period, and CA signature to confirm that the certificate is trustworthy. After successful verification, the certificate enters the certificate usage phase, where it is used for encryption, authentication, digital signatures, or secure communications such as HTTPS or IPsec.
During its lifetime, a certificate may require certificate update (renewal) when it approaches expiration.
Finally, if the certificate becomes invalid or compromised, certificate revocation is performed to terminate its trust before its expiration date.
114. Frage
In the Linux system, which of the following is the command to query the P address information? ( )[Multiple choice]*
Antwort: B
115. Frage
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