Multiple choice

What is the probable cause for getting the following error stack? ERROR: ORA-01034: ORACLE not available ORA-07318: smsget: open error when opening sgadef.dbf file. HP-UX Error: 2: No such file or directory

  1. The Oracle segment is shutdown that they are trying to access.

  2. The Oracle namespace is shutdown that they are trying to access.

  3. The Oracle instance is shutdown that they are trying to access.

  4. None of the above
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C Correct answer
Explanation

The error ORA-01034 'ORACLE not available' combined with ORA-07318 'sgadef.dbf file open error' and 'No such file or directory' definitively indicates the Oracle instance is shutdown. The sgadef.dbf file exists only when the instance is running (it's part of SGA - System Global Area). The error is not about segments or namespaces but the instance itself being unavailable.

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