You want to configure the Flashback Database feature and retain flashback logs for three days. Presently the database is open and configured in ARCHIVELOG mode. The following steps must be performed in the correct sequence to do this: 1. Set the retention target: SQL> ALTER SYSTEM SET DB_FLASHBACK_RETENTION_TARGET=4320; 2. Enable Flashback Database: SQL> ALTER DATABASE FLASHBACK ON; 3. Mount the database: SQL> STARTUP MOUNT EXCLUSIVE 4. Shutdown the instance: SQL> SHUTDOWN IMMEDIATE 5. Open the database: SQL> ALTER DATABASE OPEN; Choose the correct sequence.() 4, 1, 3, 2, 5。 4, 3, 1, 2, 5。 2, 4, 3, 5, 1。 4, 2, 5, 3, 1。
在普通型人寿保险中,储蓄性极强的险种是() 终身寿险。 定期寿险。 生存保险。 两全保险。
How would the system administrator find information regarding smit menu definitions?() Use ODM commands。 Use LVM commands。 In the /etc/environment file。 In the /usr/lib/smit/menu.cfg file。
An administrator performs an audit on the /usr filesystem and finds the following permissions: -rwsr-xr-x 1 root sys 514288 Jun 18 09:40 /usr/local/bin/nmon Which of the following methods can the administrator use to remove a potential security risk() rm /usr/local/bin/nmon。 chmod u-s /usr/local/bin/nmon。 Reinstall the file from the appropriate fileset。 chmod go-rx /usr/local/bin/nmo。
发展轴理论
()就是根据成本信息和施工项目的具体情况,运用一定的专门方法,对未来的成本水平及其可能发展趋势做出科学的估计。