Which of the following is NOT a function performed by Dynatrace OneAgent during installation?

The correct choice identifies a function that Dynatrace OneAgent does not perform during its installation process. Specifically, it does not create a backup of user data. This means that while OneAgent is focused on monitoring application performance and providing insights into system health, it does not include a feature to safeguard or store existing user data before performing its operations.

During installation, OneAgent conducts various tasks such as injecting libraries into monitored processes to enable monitoring capabilities. It checks for a connection to the Dynatrace Server to ensure that it can send the collected data for analysis, which is crucial for maintaining a functional monitoring environment. Additionally, Dynatrace OneAgent may adjust the SELinux security policy based on the specific requirements for monitoring applications on systems with SELinux enabled.

Therefore, while the other functions listed are integral to the operation and deployment of Dynatrace OneAgent, the creation of user data backups is not an explicit function of this software, highlighting why that choice stands out as the one that does not apply.