OCP-1Z0-053-V12.02-102题
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102.Examine the following values of the initialization parameters in the database having the SID ORCL:
BACKGROUND_DUMP_DEST=/u01/app/oracle/product/11.1.0/db_1/bdump
USER_DUMP_DEST=/u01/app/oracle/product/11.1.0/db_1/udump
CORE_DUMP_DEST=/u01/app/oracle/product/11.1.0/db_1/cdump
DIAGNOSTIC_DEST=
The environment variables have the following value:
ORACLE_BASE=/u01/app/oracle
ORACLE_HOME=/u01/app/oracle/product/11.1.0/db_1
What is the location of the Automatic Diagnostic Repository (ADR) home?
A. /u01/app/oracle/product/11.1.0/db_1
B. /u01/app/oracle
C. $ORACLE_HOME/bdump
D. $ORACLE_HOME/log
Answer: B
答案解析:
如果ORACLE_BASE环境变量已设置,则DIAGNOSTIC_DEST被设置为$ORACLE_BASE
参考:http://docs.oracle.com/cd/E11882_01/server.112/e25494/diag.htm#ADMIN11008
the ADR root directory is known as ADR base. Its location is set by the DIAGNOSTIC_DEST
initialization parameter. If this parameter is omitted or left null, the database sets DIAGNOSTIC_DEST
upon startup as follows:
If environment variable
ORACLE_BASE
is set,DIAGNOSTIC_DEST
is set to the directory designated byORACLE_BASE
.If environment variable
ORACLE_BASE
is not set,DIAGNOSTIC_DEST
is set to ORACLE_HOME/logWithin ADR base, there can be multiple ADR homes, where each ADR home is the root directory for all diagnostic data—traces, dumps, the alert log, and so on—for a particular instance of a particular Oracle product or component. For example, in an Oracle Real Application Clusters environment with Oracle ASM, each database instance, Oracle ASM instance, and listener has an ADR home.
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