Dynamic analysis is a method used in software testing to evaluate and analyze the behavior of a program while it is running. This type of analysis involves monitoring the execution of the software, tracking memory usage, input/output operations, and other activities to identify bugs, inefficiencies, or potential vulnerabilities in the code. Dynamic analysis is often used in conjunction with static analysis, which focuses on the code itself, to provide a comprehensive assessment of a software system. By running the program and observing its behavior in real-time, developers can uncover runtime errors, memory leaks, and other issues that may not be apparent during static analysis. Overall, dynamic analysis is an essential tool for ensuring the reliability and security of software applications, as it allows developers to identify and address problems that may arise during runtime, leading to a more robust and stable product.