An identity architect is setting up an integration between Salesforce and a third-party system. The third-party system needs to authenticate to Salesforce and then make API calls against the REST API.
One of the requirements is that the solution needs to ensure the third party service providers connected app in Salesforce mini need for end user interaction and maximizes security.
Which OAuth flow should be used to fulfill the requirement?

Universal Containers (UC) uses Global Shipping (GS) as one of their shipping vendors. Regional leads of GS need access to UC's Salesforce instance for reporting damage of goods using Cases. The regional leads also need access to dashboards to keep track of regional shipping KPIs. UC internally uses a third-party cloud analytics tool for capacity planning and UC decided to provide access to this tool to a subset of GS employees.
In addition to regional leads, the GS capacity planning team would benefit from access to this tool. To access the analytics tool, UC IT has set up Salesforce as the Identity provider for Internal users and would like to follow the same approach for the GS users as well. What are the most appropriate license types for GS Tregional Leads and the GS Capacity Planners? Choose 2 Answers

Universal Containers (UC) has a Customer Community that uses Facebook for Authentication. UC would like to ensure that Changes in the Facebook profile are reflected on the appropriate Customer Community user: How can this requirement be met?

A leading fitness tracker company is getting ready to launch a customer community. The company wants its customers to login to the community and connect their fitness device to their profile. Customers should be able to obtain exercise details and fitness recommendation in the community.
Which should be used to satisfy this requirement?

A multinational company is looking to rollout Salesforce globally. The company has a Microsoft Active Directory Federation Services (ADFS) implementation for the Americas, Europe and APAC. The company plans to have a single org and they would like to have all of its users access Salesforce using the ADFS . The company would like to limit its investments and prefer not to procure additional applications to satisfy the requirements.
What is recommended to ensure these requirements are met ?