Dynamic analysis is a method for end-to-end vulnerability assessment that involves testing an application while it is running, by simulating user inputs, network traffic, or environmental conditions. Dynamic analysis can help identify security issues that may arise from the interaction between different components of the application, such as logic flaws, input validation errors, or session management weaknesses.

The Internet usage trend report shows that User 4 has an unusually high amount of data downloaded compared to other users. User 4 downloaded 2.5 GB of data in one day, while the average data downloaded by other users was around 0.2 GB. This could indicate that User 4 is engaged in some suspicious or malicious activity, such as downloading unauthorized or illegal content, exfiltrating sensitive data, or installing malware. Therefore, the security analyst should investigate User 4 further to determine the nature and source of the data downloaded.

The laptop of the vice president that is on the corporate LAN should be investigated first. According to the CompTIA CySA+ Certification Exam (CS0-002) study guide, when prioritizing security alerts, the analyst should prioritize assets based on the potential impact of a successful attack or compromise. Therefore, the laptop of the vice president, which is connected to the corporate LAN, should be investigated first, as it has the highest potential impact.

Stress testing is a software assessment method that tests how an application performs under peak times or extreme workloads. Stress testing can help to identify any performance issues, bottlenecks, errors or crashes that may occur when an application faces high demand or concurrent users. Stress testing can also help to determine the maximum capacity and scalability of an application .

Requiring support teams to develop a corrective control that ensures security failures are addressed once they are identified is the best step to prevent future issues from being remediated. Corrective controls are actions or mechanisms that are implemented after a security incident or failure has occurred to fix or restore the normal state of the system or network. Corrective controls can include patching, updating, repairing, restoring, or reconfiguring systems or components that were affected by the incident or failure .