What is a disadvantage of using multilayer switches for inter-VLAN routing?

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#1

What is a disadvantage of using multilayer switches for inter-VLAN routing?

  1. Multilayer switches have higher latency for Layer 3 routing.
  2. Multilayer switches are more expensive than router-on-a-stick implementations.
  3. Spanning tree must be disabled in order to implement routing on a multilayer switch.
  4. Multilayer switches are limited to using trunk links for Layer 3 routing.