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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: IP Technology Basics | 25% | - ICMP protocol - Static routing and default routing - DHCP principles and configuration - IPv6 basics and address types - NAT (Network Address Translation) - IPv4 addressing and subnetting - OSPF fundamentals (single-area) - ACL (Access Control List) |
| Topic 2: Typical Campus Networking Solution | 5% | - Typical campus network deployment scenarios - Hierarchical network model (core, aggregation, access) - Campus network architecture design - Network reliability and redundancy design |
| Topic 3: Ethernet Technology Basics | 20% | - Ethernet overview and frame structure - STP / RSTP / MSTP spanning tree protocols - MAC address table and forwarding - Link aggregation (LACP) - VLAN intercommunication (sub-interface, VLANIF) - VLAN principles and configuration |
| Topic 4: Data Center Network Basics | 5% | - Cloud computing and virtualization basics - Data center network architecture overview - Data center fabric concepts (VXLAN, SDN) |
| Topic 5: Network O&M and Troubleshooting | 10% | - Troubleshooting methodology and process - Network maintenance tools (ping, tracert, display commands) - Common network fault diagnosis - Network documentation and baselining |
| Topic 6: Data Communication Network Basics | 10% | - ARP principles - TCP/UDP principles - Basic network concepts, IP network architecture, and standardization organizations - Basic principles and operations of VRP (Versatile Routing Platform) - Data forwarding process - OSI and TCP/IP protocol models and functions of each layer - Basic concepts and life cycle of campus network |
| Topic 7: WLAN Technology Basics | 10% | - WLAN overview and 802.11 standards - WLAN networking architecture (AC + AP) - WLAN RF fundamentals (channels, bands) - WLAN basic configuration and troubleshooting |
| Topic 8: Network Security and Services | 15% | - Network security overview - Firewall basics and security zones - Network management protocols (SNMP, NTP) - AAA (Authentication, Authorization, Accounting) - FTP / TFTP and file management - IPsec VPN fundamentals |
Die Huawei H12-811_V2.0 Zertifizierungsprüfung ist eine wichtige Huawei Zertifizierungsprüfung. Aber es ist nicht einfach, die Huawei H12-811_V2.0 Zertifizierungsprüfung zu bestehen. Um den Druck der Kandidaten zu entlasten und Zeit und Energie zu ersparen hat ZertSoft viele Prüfungsmaterialien entwickelt. So können Sie im ZertSoft die geeignete und effziente Trainingsmethode wählen, um die H12-811_V2.0 Prüfung zu bestehen.
95. Frage
DAD enables a node to detect whether an IPv6 address is already in use by another node before assigning it to an interface. This ensures that duplicate unicast addresses do not exist on a network. Which of the following packets are used for DAD? (Select all that apply)
Antwort: A,B
Begründung:
Duplicate Address Detection (DAD) is an IPv6 mechanism used to verify that a unicast address is not already in use before the address is assigned to an interface. DAD is implemented using Neighbor Solicitation (NS) and Neighbor Advertisement (NA) messages, which are part of the ICMPv6 Neighbor Discovery protocol.
Therefore, options A and D are correct.
When a host wants to verify a tentative IPv6 address, it sends an NS message for that address. If another node on the link is already using that address, that node responds with an NA message, indicating the address is duplicated and cannot be assigned. If no NA is received within the required period, the host assumes the address is unique and can use it. Options B and C are incorrect because Router Solicitation (RS) and Router Advertisement (RA) are used for router discovery, prefix advertisement, and stateless address autoconfiguration, not for DAD itself. HCIA-Datacom emphasizes the distinction between Neighbor Discovery functions, including address resolution, next-hop reachability, router discovery, and duplicate address detection in IPv6 networks.
96. Frage
Assume that PC1 and PC2 can communicate with each other, and R2 receives a data packet sent by PC2 to PC1. Match each field in the packet with its correct value by dragging the options to the corresponding fields.
Antwort:
Begründung:
Explanation:
MAC_C, MAC_D, 192.168.2.2, 192.168.1.2
The HCIA-Datacom training material explains that routers forward packets based on destination IP addresses while changing the data-link encapsulation at each hop.
When PC2 sends data to PC1, the source IP address is 192.168.2.2 and the destination IP address is
192.168.1.2.
These IP addresses remain unchanged as the packet travels across R2 and R1 during conventional routing.
However, the Ethernet source and destination MAC addresses are replaced at each routing hop.
When R2 forwards the packet toward R1, it uses its outgoing interface MAC address, MAC_D, as the source MAC address.
The destination MAC address is MAC_C, which belongs to R1 ' s interface connected to R2.
Therefore, the packet forwarded from R2 contains destination MAC MAC_C, source MAC MAC_D, source IP 192.168.2.2, and destination IP 192.168.1.2.
97. Frage
The rules in an ACL may overlap. If packets match the rules with loose conditions, the later ACL rules are not processed. In this case, packets cannot match the rules with strict conditions.
Therefore, the rules with strict conditions must be arranged in front lines and those with loose conditions must be arranged towards the end.
Antwort: A
Begründung:
Access Control Lists (ACLs) are processed in sequential order, meaning that once a packet matches a rule, subsequent rules are ignored. To ensure that more specific (strict) conditions are applied, strict rules should be listed first, followed by loose rules.
98. Frage
Drag and Drop Question
ACLs can be classified into basic ACLs, advanced ACLs, and Layer 2 ACLs based on the rule type. Drag the ACL rules to the correct positions.
Antwort:
Begründung:
Explanation:
Basic ACL → Defines packet filtering rules based on source IPv4 addresses, fragment information, and effective time ranges.
Advanced ACL → Defines packet filtering rules based on source/destination IPv4 addresses, IP protocol types, TCP/UDP port numbers, fragment information, and effective time ranges.
Layer 2 ACL → Defines packet filtering rules based on Ethernet frame headers such as MAC addresses, VLAN IDs, and Layer 2 protocol types.
Basic ACLs operate mainly on source IP-related criteria. Advanced ACLs provide extended filtering using Layer 3 and Layer 4 information such as destination IPs and port numbers. Layer 2 ACLs work at the Ethernet frame level and filter traffic based on MAC addresses, VLAN IDs, and other Layer 2 fields.
99. Frage
An engineer is configuring Fit AP onboarding on a Huawei WAC. After the engineer completes network connectivity and CAPWAP configuration, the next step is to configure the AP authentication mode. Which AP authentication modes can the engineer choose to configure?
(Choose all that apply.)
Antwort: A,B,D
Begründung:
Huawei WAC supports multiple AP authentication modes during Fit AP onboarding, including MAC-based authentication, SN-based authentication, and no-authentication mode. These methods define how the WAC verifies and allows APs to join the network. IP-based authentication is not a valid AP authentication mode in this context.
100. Frage
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