Answer:
a modular router
Explanation:
A modular router is a type of router that will provide multiple slots, this will enable the network engineer to either change or increase the number of space the router has.
A layer 3 switch cannot provide a WAN connectivity even though it can increase the number of ports on a router. The concept of PoE capability of any device have nothing to do with the number of ports it has. If the Engineer decides to use another fixed configuration router it will still lead to the same problem in the future because it cannot guarantee or provide the flexibility of future growth adaptation which can be given by a modular router if put in use.
Answer:
Video Tutorial
Explanation:
The others don’t make sense.
