[多选] You are managing an Oracle Database 11g instance.You want to create a duplicate database for testing purpose. What are the prerequisites for performing the active database duplication?（）

A . The source database backup must be copied over the net for test database.
B . The source database must be run in ARCHIVELOG mode if the database is open.
C . The source database must be shut down cleanly if the database is in mounted state.
D . A net service name should be set up and a listener configured with the target as well as the source database.

During which boot phase is the rootvg first activated（） Phase 1。 Phase 2。 Phase 3。 POST Phase。 A system contains multiple hot-swap stand-alone disks with a large number of JFS2 file systems. Which feature of JFS2 can be used to improve reliability， availability and serviceability （RAS） if a disk failure occurs？（） Inline logging。 Dynamic inode allocation。 Linear directory organization。 Online filesystem defragmentatio。氧化磷酸化简述抗日战争胜利后中国国民党、中国共产党及各民主党派的建国方针。 A developer complains that after making changes to a store JSP， the original content still displays in the browser. Which of the following steps should the administrator perform to try to solve the problem？（） Ensure that the modified JSP is located in the correct directory and has the correct timestamp.。 Stop and restart the WebSphere Commerce Server.。 Stop and restart the database server.。 Clear the WebSphere Commerce cache.。 Refresh the URL Views registry using the WebSphere Commerce Administration Console.。 You are managing an Oracle Database 11g instance.You want to create a duplicate database for testing purpose. What are the prerequisites for performing the active database duplication?（）

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[多选] You are managing an Oracle Database 11g instance.You want to create a duplicate database for testing purpose. What are the prerequisites for performing the active database duplication?（）

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