Description: Node testing is a type of evaluation carried out on individual nodes within a distributed system. Its main objective is to ensure that each node functions correctly and meets established requirements. These tests are fundamental in architectures where multiple nodes work together, such as in distributed systems, cloud applications, and computer networks. By conducting node tests, specific errors in each component can be identified and corrected before they are integrated into the complete system. This not only improves software quality but also optimizes the overall performance of the system. Node testing can include various techniques, such as unit testing, integration testing, and performance testing, depending on the specific evaluation objectives. Additionally, these tests allow developers to verify the functionality, security, and stability of each node, ensuring that the distributed system operates efficiently and reliably. In an environment where scalability and resilience are crucial, node testing becomes an essential practice for modern software development.