What are two disadvantages of using the router-on-a-stick inter-VLAN routing method in a large network? (Choose two.)
- A dedicated router is required.
- It does not scale well.
- It requires multiple physical interfaces on a router.
- It requires subinterfaces to be configured on the same subnets.
- Multiple SVIs are needed.
Explanation: The router-on-a-stick method requires one physical Ethernet router interface to route traffic between multiple VLANs on a network. The router interface is configured using software-based virtual subinterfaces to identify routable VLANs. Modern, enterprise networks rarely use router-on-a-stick because it does not scale easily to meet requirements, and multiple subinterfaces may impact the traffic flow speed. In these very large networks, network administrators use Layer 3 switches to configure inter-VLAN routing.
Exam with this question: 4.5.4 Module Quiz - Inter-VLAN Routing
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