Which statement can be an inference from the output?（） The FRA disk group has an asynchronous I/O bottleneck。 The least number of I/Os are performed on the last data file in the list。 The number of times that the backup or restore process directed the OS to wait until an I/O was complete is the highest for the last data file in the list。 The number of times that the backup or restore process made an OS call to poll for I/O completion in Nonblocking mode is the least for the FRA disk grou。
Adam is working as a Database Administrator （DBA） for TeleSoft Corporation. His database is running in the ARCHIVELOG mode. During database startup， he discovers that one of the disks crashed， resulting in the permanent loss of a read-write USERS tablespace. The USERS01.dbf datafile belongs to the USERS tablespace and is 500 MB in size. He needs to recover the USERS tablespace from the backup. While reviewing the backup details， he discovers that the most recent available backup is five days old. This backup was taken when the USERS tablespace was read-only. After correcting the hardware problem that caused the failure， what should Adam do to recover the USERS tablespace？（） Restore the USERS01.dbf file from the backup， and open the database using the STARTUP command.。 Restore the USERS01.dbf file using the RECOVER TABLESPACE command， and open the database using the ALTER DATABASE OPEN statement.。 Restore the USERS01.dbf file from the backup， recover the USERS tablespace using the RECOVER TABLESPACE command， and open the database using the ALTER DATABASE OPEN statement.。 Restore the USERS01.dbf file from the backup and change the status of the USERS tablespace from read-only to read-write using the ALTER TABLESPACE USERS READ WRITE statement. Then， recover the USERS tablespace using the RECOVER TABLESPACE command， and open the database using the ALTER DATABASE OPEN statement.。
在三相四线制中，中线的电流（）。 一定等于零。 三相的代数和。 三相矢量和。
服务级别管理的目标是什么（） 以最低的成本为顾客提供高质量的服务。 确保对重大事件能及时沟通和协调。 确保顾客所需的IT服务得到网络的维护和改进。 获得顾客的广大理解和支持。
Given: What is the result?（） Compilation fails.。 An exception is thrown at runtime.。 doStuff x = 6 main x = 6。 doStuff x = 5 main x = 5。 doStuff x = 5 main x = 6。 doStuff x = 6 main x = 5。
Given：
What is the result？（）
