Which kind of architecture is characterized by multiple processes that interact with one another?

The correct answer is characterized by a system design where processes are spread out across multiple locations or nodes that can communicate and collaborate with each other. In a distributed architecture, these processes work collectively to achieve a common goal, sharing resources and workload. This setup is particularly advantageous because it can enhance system resilience and reliability, as the failure of one node does not necessarily disrupt the entire system. Moreover, distributed architectures can improve performance by allowing processes to operate in parallel.

In contrast, layered architecture involves organizing functionality into layers, where each layer serves a specific purpose and interacts in a more hierarchical fashion, often leading to a more centralized control. Modular architecture focuses on dividing a system into smaller, interchangeable modules, but it does not specifically emphasize the interaction of multiple processes across different locations as a defining feature. Decentralized architecture, while promoting distribution of control, may not always specifically require interaction among multiple processes in the same way that distributed systems do.