- a Layer 3 switch
- a modular router
- a PoE device
- another fixed configuration router
Explanation: Modular routers provide multiple slots that allow a network designer to change or increase the interfaces that exist on the router. A Layer 3 switch may increase the number of ports available on a router, but will not provide WAN connectivity. The PoE capability of a device is not related to the number of ports it has. Using another fixed configuration router will not provide the flexibility to adapt to future growth that using a modular router will provide.
More Questions: CCNA 3 (v5.0.3 + v6.0) Chapter 1 Exam Answers