What are two disadvantages of using the router-on-a-stick inter-VLAN routing method in a large network? (Choose two.)

IT Questions BankCategory: CCNA 2 v7What are two disadvantages of using the router-on-a-stick inter-VLAN routing method in a large network? (Choose two.)

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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