Which is NOT a part of Observability and Management Services?

Logical isolation for resources is provided by which OCI feature?

What do the features of OS Management Service do?

your company has hired a consulting firm to audit your oracle cloud infrastructure activity and configuration you have created a set of users who will be performing the audit, you assigned these user to the orgauditgrp group. the auditor required the ability to see the configuration of all resources within tenant and you have agreed to exempt the dev compartment from the audit.
which IAM policy should be created to grant the orgauditgrp the ability to look at configuration for all resources except for those resources inside the dev compartment?

You want to make API calls against other OCI services from your instance without configuring user credentials. How would you achieve this?