Testpdf 應一些考友的需要，在第一時間內及時更新了 H12-811_V2.0 這門題目，更新之後的 H12-811_V2.0 擬真試題覆蓋率100%。考生可在反復練習這份真題的基礎上，多思考，多總結，通過 H12-811_V2.0 考試就沒有問題了。建議的是，一定要瞭解這門考試的最新動態資訊，這樣才能在考試中做到隨機應變。而我們就是一個可以滿足很多參加Huawei H12-811_V2.0 認證考試的IT人士的需求的網站。
| Section | Objectives |
|---|---|
| Topic 1: Network Fundamentals | - OSI and TCP/IP models - Basic network topologies and devices |
| Topic 2: Routing Technologies | - Dynamic routing fundamentals (OSPF basics) - Static routing |
| Topic 3: IP Services | - DHCP and DNS concepts - NAT basics |
| Topic 4: IP Addressing and Subnetting | - IPv4 addressing and subnet masks - IPv6 fundamentals |
| Topic 5: Network Security Basics | - Access control lists (ACL) - Basic network security concepts |
| Topic 6: Switching Technologies | - VLAN configuration and trunking - STP/RSTP concepts |
| Topic 7: WLAN Basics | - Wireless networking fundamentals |
| Topic 8: Network Management and Troubleshooting | - Device management concepts - Basic troubleshooting tools and methods |
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問題 #22
AAA is short for authentication, authorization, and accounting. The accounting function records only the fees incurred when users use network resources, but not the Internet access traffic or duration.
答案：B
解題說明：
The accounting function in AAA records user activity details such as login/logout times, session duration, accessed services, and traffic statistics. It is not limited to recording fees; it also tracks usage data for auditing, monitoring, and billing purposes.
問題 #23
On the switched network shown in the figure, STP is enabled on all devices. SW1 is the root bridge. The port costs are shown in the figure. Other parameters retain the default values. After the network is stable, which of the following RPC values is calculated by SW4 for the path to SW1?
答案：C
解題說明：
SW1 is the root bridge, so SW4 calculates its Root Path Cost (RPC) based on the lowest cumulative STP cost path to SW1. The direct link from SW4 to SW1 has a cost of 50, which is lower than all alternative paths through SW3 or SW2. Therefore, SW4 selects the direct path, resulting in an RPC of 50.
問題 #24
What is the broadcast address of the network that contains a host with IP address
192.168.1.147/28?
答案：D
解題說明：
A /28 subnet mask corresponds to 255.255.255.240, which means each subnet contains 16 IP addresses. The subnet boundaries in the last octet increase in steps of 16: 0, 16, 32, 48, 64, 80,
96, 112, 128, 144, 160, and so on. The host address 192.168.1.147 falls within the subnet range
192.168.1.144 to 192.168.1.159.
In that subnet, the network address is 192.168.1.144, the usable host range is 192.168.1.145 through 192.168.1.158, and the broadcast address is 192.168.1.159. Therefore, option C is correct. Option D is the first usable host address, not the broadcast address.
問題 #25
Which of the following statements is true about link aggregation in manual load balancing mode?
答案：A
解題說明：
In manual load balancing mode, all active interfaces forward traffic, distributing it evenly across links without LACP. This allows for static load balancing. Option B is incorrect because LACP (Link Aggregation Control Protocol) is not involved in manual mode.
問題 #26
OSPF has five types of packets. Which type is used to notify an OSPF neighbor of its required LSAs?
答案：C
解題說明：
In OSPF, the packet type used to request specific link-state advertisements from a neighbor is the Link State Request (LSR) packet. Therefore, option B is correct. During database synchronization, OSPF neighbors first discover each other with Hello packets, then exchange summaries of their databases using Database Description (DD) packets. If one router finds that it is missing certain LSAs or has older versions, it sends an LSR packet to request the needed LSAs from its neighbor.
The neighbor then responds with a Link State Update (LSU) packet containing the requested LSAs. Finally, the receiving router confirms proper receipt with a Link State Acknowledgment (LSAck) packet. HCIA- Datacom emphasizes understanding the roles of these five OSPF packet types because they are central to neighbor formation, adjacency establishment, and LSDB synchronization. This question specifically tests whether the learner can distinguish between the request packet ( LSR ) and the update packet ( LSU ). The router does not use a DD packet to request detailed LSA content; DD packets provide database summaries, while LSR packets explicitly request the LSAs that are needed.
問題 #27
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