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Answer: Build or leverage an OAuth-compatible access control system
The correct answer is A, which suggests building or leveraging an OAuth-compatible access control system. OAuth is a widely-used open standard for access delegation, commonly used to grant websites or applications limited access to user information without exposing passwords. It allows third-party tools to securely access the vehicle data by enabling delegated authorization. SAML (option B) is primarily used for single sign-on (SSO) and is more focused on authentication rather than authorization. Options C and D do not provide the same level of secure, granular delegated authorization that OAuth offers.
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TerramEarth manufactures heavy equipment for the mining and agricultural industries. They currently have over 500 dealers and service centers in 100 countries. There are 20 million TerramEarth vehicles in operation that collect 120 fields of data per second. Approximately 200,000 vehicles are connected to a cellular network, allowing TerramEarth to collect data directly. Your development team has created a structured API to retrieve vehicle data. They want to allow third parties to develop tools for dealerships that use this vehicle event data. You want to support delegated authorization against this data. What should you do?
A
Build or leverage an OAuth-compatible access control system
B
Build SAML 2.0 SSO compatibility into your authentication system
C
Restrict data access based on the source IP address of the partner systems
D
Create secondary credentials for each dealer that can be given to the trusted third party
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