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Which three statements are true about persistent lightweight jobs?
Correct Answer: A,D,E
Explanation/Reference: Explanation: Unlike regular jobs, they are not schema objects. Because lightweight jobs are not schema objects, you cannot grant privileges on them. A lightweight job inherits privileges from its specified program. Thus, any user who has a certain set of privileges on the program has corresponding privileges on the lightweight job. Use lightweight jobs when you have many short-duration jobs that run frequently. Under certain circumstances, using lightweight jobs can deliver a small performance gain. A lightweight job must reference a program object (program) to specify a job action. The program must be already enabled when the lightweight job is created, and the program type must be either 'PLSQL_BLOCK' or 'STORED_PROCEDURE'. http://docs.oracle.com/database/121/ADMIN/schedover.htm#ADMIN12668