A site administrator is configuring Command-level access control. Which of the following statements about Command-level access control are true？ Command level access control policies： （） are mandatory。 specify action group ExecuteCommandActionGroup for Controller commands。 specify action group ViewCommandActionGroup for View commands。 specify resource group ControllerCommandResourceGroup for Controller commands。 specify resource group ViewCommandResourceGroup for View command。
企业的应收账款评估值的一般计算公式为（）。 应收账款账面值-已确定坏账损失-预计坏账损失。 应收账款账面值。 应收账款账面值-已确定坏账损失。 应收账款账面值-预计坏账损失。
Which statement is true regarding online redefinition for the migration of BasicFile LOBs to SecureFile LOBs?（） It cannot be done in parallel.。 It can be done at the table level or partition level.。 It does not require additional storage because the operation is done online.。 Local and global indexes are maintained automatically during the operation.。
《民事诉讼法》规定：证据包括（）。 当事人陈述、书证、物证、证人证言、勘验笔录、鉴定意见。 物证、书证、证明人提供的资料、鉴定结论、勘验笔录。 鉴定报告、当事人提供的资料、勘验笔录、物证。 鉴定咨询报告、书证、物证、证人证言、勘验笔录。
Which three tasks can be performed using a duplicate database？（） Testing the backup and recovery procedures。 Testing the upgrade of an Oracle database to a new release。 Testing the effect of an application changes on database performance。 Continuously updating archive log files from the target database to support failover。
若列车管定压为600kPa，常用限压阀限制的压力值应调整为（）。
