Molly, an end-user, connects an external monitor, external keyboard and mouse, and a wired network cable to her laptop while working in the office. She
leaves the office frequently to meet with customers and takes the laptop with her. Disconnecting and reconnecting these external connections has become
inconvenient. Which of the following devices will allow the user to disconnect and reconnect the laptop to the external connections with the least amount
of effort?
Port Replicator
Docking Station

A Port Replicator

Explanation:

Port Replicators are universal and do not require that your computer (laptop) be docked (Placed) on them to function. All you need is the devices connected to the port replicator and whenever you need to move the laptop, you disconnect the port replicator from it. It generally is connected via a type of USB port.

A Docking station on the other hand can be a drag in the sense that you might have a challenge always having to dock and undock your laptop from the station anytime you need to move. This can be annoying if you are in a rush. Also the Docking stations use expansion ports which are a lot of times not universal (Not just any type of laptop can connect to the dock stations, just your model or specified models).

Port Replicator

Explanation:

While you may be able to use a docking station for this purpose, a port replicator is designed specifically for this kind of use.