You work as a database administrator for Supportcenter.cn. You are using Recovery Manager （RMAN） for backup and recovery of your database. You executed the delete command in RMAN to delete a backup of a tablespace. Which statement is true in this scenario？（） ["The backup status will be marked expired in RMAN recovery catalog.","The backup status will be marked deleted in RMAN recovery catalog after you execute the crosscheck command.","The backup will be deleted physically from the OS （Operating system）and the backup information is removed from the recovery catalogl","The backup status will be marked deleted and you must delete the backup file manually from the OS （Operating system）.","The backup status will be marked deleted and you must delete the backup file manually from the OS （Operating system）， if you are not using Oracle Managed Files （OMF）."]
A customer would like to consolidate multiple database workloads to a single server to reduce TCO. What is the effect of PowerVM on TCO？（） ["Reduces SAN cost","Reduces network cost","Reduces administration costs","Reduces software licensing cost"]
水利工程保修期从工程移交证书写明的工程完工日起一般不少于（）。 ["一年","三年","五年","十年"]
A customer has Windows servers and applications that use block I/O. The customer cannot affordthe cost of a fibre channel infrastructure but still requires shared storage. Which configurationmeets these requirements at the lowest cost？（） ["iSCSI HBAs and N3400","MicrosoftiSCSI initiator and N3400","MicrosoftiSCSI initiator and DS3400","SAN04B-R multi-protocol router and DS3400"]
细菌的三种基本形态为？
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