In Huawei, the command ___, users on different ports in the same VLAN can be completely isolated at Layer 2 and Layer 3 and unable to communicate.

Question

Options

• Aport-isolate mode all
• B
• C
• D

• A
  79% (49)
• B
  6% (4)
• C
  11% (7)
• D
  3% (2)

Explanation

Option A is correct because the port-isolate mode all command on Huawei switches enforces isolation at both Layer 2 and Layer 3 simultaneously, meaning ports within the same VLAN cannot exchange frames or routed packets with each other under any circumstance. The keyword all is critical - without it, the default port isolation mode only blocks Layer 2 traffic, leaving open the possibility that a Layer 3 routing path could still allow communication between ports. Since options B, C, and D are not provided in this question, there are no distractors to evaluate, but the distinction to watch for in similar questions is whether a command specifies mode all (both layers) versus mode l2 or no mode qualifier (Layer 2 only). For exam purposes, remember that "all" means all layers - if the requirement mentions complete isolation including Layer 3, the answer must include mode all.

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