Refer to exhibit. VLANs 50 and 60 exist on the trunk links between all switches. All access ports on SW3 are configured for VLAN 50 and SW1 is the VTP server. Which command ensures that SW3 receives f

Question

Exhibits

Options

• ASW1 (config)#vtp pruning
• BSW3(config)#vtp mode transparent
• CSW2(config)=vtp pruning
• DSW1(config)>vtp mode transparent

• A
  90% (18)
• B
  5% (1)
• C
  5% (1)

Explanation

VTP Pruning Explanation

Enabling VTP pruning on the VTP server (SW1) automatically propagates pruning configuration to all VTP client switches in the domain, which prevents unnecessary VLAN traffic from being sent across trunk links where that VLAN has no active ports. Since SW3 only has access ports in VLAN 50, pruning will block VLAN 60 frames from ever reaching SW3, optimizing bandwidth across the trunk links.

Why the distractors are wrong:

• Option B is incorrect because setting SW3 to transparent mode removes it from VTP management entirely, meaning it won't synchronize VLAN databases - it doesn't control which VLANs traverse trunk links
• Option C is incorrect because configuring pruning on SW2 (a VTP client) has no effect - pruning must be enabled on the VTP server to propagate domain-wide
• Option D is incorrect because setting SW1 to transparent mode would break VTP server functionality, and transparent mode does not enable pruning

Memory Tip

Think: "Prune from the top of the tree (server)" - VTP pruning must always be enabled on the VTP Server, and it cascades down to all clients automatically. If you prune a branch (client), nothing happens!

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