单项选择题
A.The database instance is running with manual PGA management.
B.The database instance is running with manual shared memory management.
C.The database instance has the MEMORY_TARGET value set to a nonzero value.
D.All sessions are connected to the database instance in dedicated mode， and no RMAN or parallelquery operations have been performed.
单项选择题 Automatic Shared Memory Management （ASMM） has been enabled for your database instance. Theinitialization parameters for the components that are managed by ASMM are not set. After observing theeffects of ASSM， you executed the following command： SQL> ALTER SYSTEM SET DB_CACHE_SIZE = 100M； Which statement is true in this scenario（）
单项选择题 View the Exhibits and examine lock waits. Users HR and SH complain that their transactions on one of the application tables， EMP， are waiting for response. Which action would you take to release the lock and enable users HR and SH to continue with theirtransactions（）
多项选择题 Whichtwostatementsaretrueaboutalerts（）
