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NEW QUESTION # 94
In the WAC + Fit AP networking, an AP fails to go online. The output of the display ap all command run on the WAC is shown below. According to the command output, which of the following is the possible cause of the AP's failure to go online?
Answer: C
Explanation:
The correct answer is C. In the command output, the AP state is shown as ver-mismatch. This state directly indicates a version mismatch between the AP and the WAC. In Huawei WLAN deployment, a Fit AP must use a software version that is compatible with the WAC version. If the versions do not match, the AP may be discovered by the WAC and appear in the AP list, but it cannot successfully complete the online process.
Option A is incorrect because blacklist-related failures are displayed with blacklist-related status information, not ver-mismatch. Option B is also incorrect because authentication failures normally generate authentication- related fault indications. Option D is incorrect because configuration initialization failure would not be identified by the specific ver-mismatch state.
HCIA-Datacom troubleshooting knowledge emphasizes reading AP online states carefully. Common causes of AP online failure include IP address acquisition failure, CAPWAP tunnel establishment failure, insufficient licenses, authentication problems, and version mismatch. When the state explicitly shows ver-mismatch, the troubleshooting direction is clear: check AP and WAC software compatibility and upgrade or align the software version as needed.
NEW QUESTION # 95
The undo command can be used in the CLI of a Huawei device to restore default settings, disable functions, or delete configurations. Which of the following are correct undo commands? (Select all that apply)
Answer: A,C,D
Explanation:
On Huawei devices, the undo command is used to remove a previously applied configuration, disable a function, or restore a parameter to its default state. In option B, undo ip address is a valid interface-view command that removes the IP address configured on the interface. In option C, undo portswitch is also a valid interface command on switch interfaces that converts a Layer 2 interface into a Layer 3 interface when supported by the device. In option D, undo sysname restores the device name to the default hostname, which is valid in system view.
Option A is incorrect because system-view is a command used to enter system view from user view, but undo system-view is not a valid command for exiting that view. Exiting system view is done with commands such as quit, return, or by using shortcut keys. This question checks the understanding that undo only applies to configurable features and parameters, not to view-switching commands in the CLI hierarchy.
NEW QUESTION # 96
With the development of data centers, a large number of services are deployed on virtual machines (VMs).
The original VLAN isolation solution cannot achieve isolation between so many VMs. VXLAN uses VXLAN Network Identifiers (VNIs) to provide a larger range than VLAN IDs, so that a larger number of VMs can be isolated.
Answer: A
Explanation:
This statement is true . Traditional VLANs use a 12-bit VLAN ID , which means that only about 4094 usable VLANs are available. In modern data centers, especially in cloud and virtualization environments, that scale is often insufficient because a very large number of tenants, services, and virtual machines need isolated network segments.
VXLAN addresses this limitation by introducing the VNI (VXLAN Network Identifier) , which is 24 bits long. This allows support for up to about 16 million logical segments , greatly expanding the number of isolated Layer 2 networks that can be created across an IP underlay. Because of this, VXLAN is widely used in modern data centers to provide scalable tenant isolation, flexible service deployment, and large Layer 2 extension across physical boundaries. HCIA-Datacom highlights VXLAN as a key overlay technology that solves the VLAN scale problem in virtualized data center environments. It allows a much larger number of VMs and tenants to be isolated than traditional VLAN-based solutions can support, making it essential for modern cloud-oriented and large-scale data center networking.
NEW QUESTION # 97
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?
Answer: C
Explanation:
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.
NEW QUESTION # 98
On the network shown in the figure, the administrator creates Eth-Trunk 1 in manual mode on SW1 and SW2, adds GE1/0/1 and GE1/0/2 on both switches to the Eth-Trunk 1, and sets the traffic forwarding mode to per- packet load balancing. However, the administrator finds that traffic from VLAN 10 cannot be forwarded, while traffic from VLAN 20 can be forwarded normally. The administrator verifies that the configuration of SW1 is correct. Which of the following statements are false about this fault scenario? (Select all that apply)
Answer: A,B,C
Explanation:
An Eth-Trunk combines multiple physical interfaces into one logical interface. VLAN permissions are configured on the logical Eth-Trunk rather than independently on individual member interfaces.
Option B describes a possible cause because SW2 may not permit VLAN 10 on Eth-Trunk 1, even though VLAN 20 is permitted.
Option A does not adequately explain the VLAN-specific failure. A failed member link would affect traffic distribution across the aggregated connection rather than inherently block only VLAN 10.
Option C is also inconsistent with normal VLAN 20 forwarding because incompatible aggregation modes could prevent the logical connection from operating correctly.
Option D is false because Eth-Trunk member interfaces do not independently control VLAN forwarding permissions.
Therefore, A, C, and D are the false explanations of the described fault.
NEW QUESTION # 99
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