Unreal Engine C++ Development Mastery Hub: The Industry Foun

In the context of Unreal Engine's C++ gameplay systems, which of the following is the most fundamental concept for defining and managing the state and behavior of interactive objects within a game world?

When designing a complex gameplay system in Unreal Engine C++, what is the primary advantage of using the Component-based architecture (e.g., adding UComponents to an AActor) over a monolithic inheritance hierarchy?

Consider a scenario where you need to replicate a custom gameplay variable across the network in Unreal Engine. Which of the following mechanisms is *essential* to ensure this variable is synchronized between the server and clients?