Which steps should an admin take to install a security patch on a multi-node Qlik Sense environment?

To install a security patch on a multi-node Qlik Sense environment, the correct approach involves stopping services on all nodes before running the Qlik_Sense_Update.exe installer. This ensures that all components of the Qlik Sense environment are in a stable state during the installation of the patch.

By stopping services on all nodes, you prevent any active processes from interfering with the update. This also mitigates the risk of potential data loss or corruption. Once the services are stopped, running the installer ensures that the patch is applied uniformly across all nodes, maintaining the integrity of the multi-node setup.

It is important to restart the services after the installation to bring the entire system back online with the updated security measures in place. This step is essential to ensure that the distributed environment operates seamlessly after the patch.

In contrast, other choices might involve improper procedures for updating the environment, leading to inconsistent application of security updates, potential downtime issues, or system errors due to active processes during the installation.