You executed the following command in Recovery Manager （RMAN）： RMAN> RESTORE CONTROLFILE； Which operation must you perform before this command is executed？（） ["back up the control file to trace","bring database to the MOUNT state","open a connection to the RMAN recovery catalog， which contains the RMAN metadata for the target database","set the database ID （DBID）， but only if the DB_NAME parameter associated with the target database is unique in the recovery catalog"]
假山洞结构形式一般分为
An end user is deploying Blade servers to replace obsolete rack mounted servers. In addition to AIX Web server and database workloads, they also have Windows workloads. Which Blade is designed for Windows workloads?（） ["HS22","JS43","QS21","PS701"]
You opened the encryption wallet and then issued the following command： SQL>CREATE TABLESPACE securespace DATAFILE ’/home/user/oradata/secure01.dbf’ SIZE 150M ENCRYPTION USING ’3DES168’ DEFAULT STORAGE（ENCRYPT）； Then you closed the wallet. Later， you issued the following command to create theEMPLOYEES table in the SECURESPACE tablespace and you use the NO SALT option for the EMPID column. What is the outcome？（） [" It creates the table and encrypts the data in it."," It generates an error because the wallet is closed."," It creates the table but does not encrypt the data in it."," It generates an error because the NO SALT option cannot be used with the ENCRYPT option."]
浮充运行的蓄电池组，发现电池比重高低不齐，此时应（）。 ["调酸","均衡充电","定期充放电"]
为什么商业计划编制时一定要有创业者亲自参与？
