Explanation:
Box 1: Yes
User1 is included in the JIT protection scope.
File1.docx has the file classification evaluation status of not evaluated, and is located on Device1.
Device1 is onboarded.
JIT will block the action.
Note: In a Microsoft 365 environment with Purview and Just-in-Time (JIT) protection, a file with a
"not evaluated" classification status will be protected by JIT. When JIT protection is enabled, Endpoint DLP will block all egress activities on monitored files while waiting for policy evaluation to complete, including when the evaluation status is "not evaluated".
Box 2: No
User2 is not within the JIT protection scope.
Box 3: No
User3 is included in the JIT protection scope.
File3.docx has the file classification evaluation status of not evaluated, and is located on Device3.
Device3 is not onbarded.
Reference:
https://learn.microsoft.com/en-us/purview/endpoint-dlp-get-started-jit