Explanation
The image description indicates that "EMEALevel2Support" has the following rights: Add/Update Users, Manage Server File Categories, Manage Directory Mapping, Backup All Files, Restore All Files. Since there is no mention of the right to reset passwords for other users, this suggests that "EMEALevel2Support" lacks the necessary permission to change the password for "Operator".

Explanation
After deploying a new HTML5 Gateway in your organization, you configure the PSM to use the HTML5 Gateway by navigating to the Administration section in the PVWA. From there, you go to Options, then Privileged Session Management, and under Configured PSM Servers, you will find the option to Add PSM Gateway1. This is where you can specify the details of the newly deployed HTML5 Gateway to ensure that the PSM can utilize it for secure remote access to target machines through an HTML5-based session.
References:
* CyberArk's official documentation provides a step-by-step guide on how to install and configure the PSM HTML5 Gateway, including the process of adding the gateway to the PSM configuration1.
* For more detailed instructions and best practices on configuring the PSM with an HTML5 Gateway, refer to the CyberArk Defender PAM course materials and study guides

Explanation
The Onboarding RestAPI functions are a set of web services that allow you to integrate CyberArk with your accounts provisioning process. You can use the Onboarding RestAPI functions to create, update, delete, or verify accounts in the CyberArk Vault, as well as to retrieve information about accounts, platforms, and safes.
The Onboarding RestAPI functions are part of the Central Credential Provider component, which is installed on a dedicated server that communicates with the Vault. References:
* [Defender PAM Course], Module 4: Onboarding Accounts, Lesson: Onboarding RestAPI Functions
* [Onboarding RestAPI Functions Guide], Introduction