多项选择题
A.increase the number of checkpoint processes
B.define the POWER option while adding or removing the disks
C.increase the number of DBWR processes by setting up a higher value for DB_WRITER_PROCESSES
D.increase the number of slave database writer processes by setting up a higher value for DBWR_IO_SLAVES
E.increase the number of ASM Rebalance processes by setting up a higher value for ASM_POWER_LIMIT during the disk addition or removal process
单项选择题 You execute the following command to enable a session in resumable mode： SQL> ALTER SESSION ENABLE RESUMABLE TIMEOUT 60； What is the impact of a timeout on the statements being suspended？（）
单项选择题 The SPFILE for the PROD database specifies the following initialization parameter values： SGA_TARGET = 2G DB_8K_CACHE_SIZE = 128M You create a tablespace named HR with the non-standard block size of 8K. Four database users are running queries on a table in the HR tablespace. These users complain that the queries are taking longer than usual to complete. While investigating the reasons for this delay， you discover that the database encounters extensive cache misses on the database buffer cache with the block size of 8K. You issue the following statement to increase the value of the DB_8K_CACHE_SIZE initialization parameter to 256M： SQL>ALTER SYSTEM SET DB_8K_CACHE_SIZE=256M SCOPE = BOTH； What is the result of this statement？（）
单项选择题 You recently created a database and configured the SPFILE with the following parameter settings to ensure that Oracle automatically adjusts the memory for the Program Global Area （PGA）： SORT_AREA_SIZE = 150M HASH_AREA_SIZE = 150M BITMAP_MERGE_AREA_SIZE = 150M CREATE_BITMAP_AREA_SIZE = 150M WORKAREA_SIZE_POLICY = AUTO You have not included the PGA_AGGREGATE_TARGET initialization parameter in the SPFILE and the System Global Area （SGA） is currently sized at 4G. What is the total PGA memory allocated across all database server processes？（）