What is a benefit of storage virtualization technology in the IBM System Storage DS8800（） fewer expansion units are needed。 multiple workloads can be managed separately。 resource isolation is eliminated。 Linux can run in LPAR mode。
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If DB2 detects a deadlock between application A and application B (each waiting for a lock held by the other one), what action will DB2 take?（） Rollback the transaction in both applications.。 Rollback the transaction in one of the two applications.。 Decrease the lock timeout value for both applications, thereby causing a lock timeout situation.。 Send a message to let the administrator know of the situation and decide which application or applications should be terminated.。
室外埋地敷设的电缆导线，应采用管壁厚度不小于（）的电线管。 1mm。 1.5mm。 2mm。 2.5mm。
一个客户需要控制备份数据库的所需要的时间，哪个不需要了解（）
