進歩を遂げ、H12-811_V2.0トレーニング資料の証明書を取得することは、当然のことながら、最新の最も正確な知識を指揮する最も専門的な専門家によるものです。それが、HCIA-Datacom V2.0試験準備が市場の大部分を占める理由です。それに、H12-811_V2.0練習教材の利益を待つのではなく、支払い後すぐにダウンロードできるので、今すぐ成功への旅を始めましょう。
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このような驚くべきデータを疑うかもしれませんが、この業界では想像もできません。しかし、当社のH12-811_V2.0試験問題は合格しました。 H12-811_V2.0学習教材のパフォーマンスにどれだけの努力を注ぎ、どれだけ重視するかを想像できます。 99％の合格率を使用して、H12-811_V2.0練習教材が試験に合格して夢を実現するのに役立つことを証明しています。 H12-811_V2.0試験問題で確実に合格するすべての顧客を保証するため、ほとんどの受験者はH12-811_V2.0ガイド資料に情熱を示しています。
質問 # 84
Drag and Drop Question
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. Match the port roles after the network is stable with the ports. (Token is reusable)
正解：
解説：
Explanation:
Designated port: GE1/0/1 of SW1, GE1/0/2 of SW1, GE1/0/3 of SW2
Root port: GE1/0/1 of SW2, GE1/0/3 of SW3
Alternate port: GE1/0/2 of SW3
SW1 is the root bridge, so all its active interfaces toward other switches operate as designated ports. Each non-root switch selects its root port based on the lowest total path cost to SW1: SW2 prefers the direct link to SW1, while SW3 prefers the path via SW2 because it has a lower cumulative cost than its direct link to SW1. On the SW2-SW3 segment, the switch with the lower path cost to the root becomes the designated port, while the other side becomes an alternate (blocked) port to prevent loops.
質問 # 85
After the root bridge is elected on an STP network, which of the following parameters may be compared by ports on non-root bridge nodes to elect the root port? (Select all that apply)
正解：A、B、C、D
解説：
On a non-root bridge, the root port is the port that receives the best BPDU toward the root bridge. STP selects the root port by comparing several parameters in order. The first important parameter is the root path cost (RPC) , so option B is correct. If multiple ports have the same RPC, the switch then compares the bridge ID (BID) of the upstream device sending the BPDU, making option C correct. If those are still equal, the switch compares the port ID (PID) of the upstream sending port, so option D is also correct.
If all of those values remain identical from the switch's perspective, the device can finally compare the local port ID to determine which local interface becomes the root port, so option A is also correct. HCIA-Datacom teaches this comparison logic as part of STP election rules. The process ensures deterministic selection of a single root port on every non-root switch. Understanding the comparison sequence is essential for predicting STP topology behavior and for influencing port roles through path cost tuning or bridge-priority adjustments during campus network design and troubleshooting.
質問 # 86
On an STP network, an administrator wants SW2 to be elected as the root bridge. Which of the following methods can be used to achieve this goal?
正解：D
解説：
In STP, the root bridge is elected based on the lowest bridge ID (BID). A BID is composed of the bridge priority and the MAC address of the switch. The device with the smallest BID becomes the root bridge.
Therefore, if an administrator wants SW2 to become the root bridge, the most direct and correct method is to configure a lower system priority on SW2, making option C correct.
Option A is incorrect because port priority affects port-role selection in some tie-breaking scenarios, but it does not determine root-bridge election. Option B is the opposite of what is required, because a higher system priority makes the BID larger and reduces the chance of being elected as root. Option D is also incorrect because root path cost is used by non-root bridges to select the best path to the existing root bridge; it does not determine which switch becomes the root bridge in the first place. HCIA-Datacom stresses that bridge priority tuning is the standard administrative method used to control root bridge placement in campus networks for stable and predictable Layer 2 topology design.
質問 # 87
Assume that you cannot configure an IP address for GE1/0/1 on a Huawei switch. Which of the following commands can you run in the interface view to resolve this problem?
正解：A
解説：
On Huawei switches, a physical Ethernet interface usually works as a Layer 2 switch port by default. A Layer 2 interface cannot be assigned an IP address directly. If an administrator wants to configure an IP address on such an interface, the interface must first be converted into a Layer 3 interface . The command used for this is undo portswitch , so option B is correct.
After this command is executed, the interface no longer behaves as a Layer 2 switching port and can then support Layer 3 features such as direct IP address configuration. Options A , C , and D are all Layer 2 port- type commands used to configure the interface as a trunk, access, or hybrid port. These commands do not solve the problem because they keep the interface operating at Layer 2. HCIA-Datacom emphasizes the difference between Layer 2 switching interfaces and Layer 3 routed interfaces on switches. Understanding when to use undo portswitch is important in campus network deployment, especially when configuring routed uplinks, management interfaces, or inter-device Layer 3 links on switches.
質問 # 88
Drag and Drop Question
On the network shown in the figure, PC1 and PC4 belong to VLAN 10, and PC2 and PC3 belong to VLAN 20. The administrator has configured the vlan batch 10 20 command on both switches.
To enable Layer 2 communication between PCs in the same VLAN and isolate services between VLANs, match the following interface configurations with interfaces. (Token is reusable)
正解：
解説：
Explanation:
SW1 GE1/0/1 - port link-type access, port default vlan 10
SW1 GE1/0/2 - port link-type access, port default vlan 20
SW1 GE1/0/3 - port link-type hybrid, port hybrid tagged vlan 10 20
SW2 GE1/0/1 - port link-type access, port default vlan 10
SW2 GE1/0/2 - port link-type access, port default vlan 20
SW2 GE1/0/3 - port link-type hybrid, port hybrid tagged vlan 10 20
Ports connected to PCs are configured as access ports and assigned to their respective VLANs to ensure correct VLAN separation. The inter-switch link must carry traffic for both VLAN 10 and VLAN 20 simultaneously, so a hybrid port is used and configured to allow tagged traffic for both VLANs, enabling inter-switch Layer 2 communication while maintaining VLAN isolation between different services.
質問 # 89
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