395.Which of these formats represents the correct hierarchy for the ADR?
A. <diagnostic_dest>/rdbms/diag/<dbname>/<instname>
B. <diagnostic_dest>/diag/rdbms/<instname>/<dbname>
C. <diagnostic_dest>/diag/rdbms/<dbname>/<instname>
D. None of the above
Answer: C
答案解析：
参考：http://docs.oracle.com/cd/E11882_01/server.112/e40402/initparams078.htm#REFRN10280
As of Oracle Database 11g Release 1 (11.1), the diagnostics for each database instance are located in a dedicated directory, which can be specified through the DIAGNOSTIC_DEST initialization
parameter. The structure of the directory specified by DIAGNOSTIC_DEST is as follows:
This location is known as the Automatic Diagnostic Repository (ADR) Home. For example, if the database name is proddb and the instance name is proddb1, the ADR home directory would be <diagnostic_dest>/diag/rdbms/proddb/proddb1.