Which command enables a user to exit the vi editor, overwriting the existing file without prompting for confirmation?（） :w。 :qw。 :x!。 :we!。
下列不属于传统物流服务功能的是（） 运输功能。 增加便利性功能。 流通加工功能。 物流信息处理功能。
A customer with a small IT budget has one data center. Their main application is a database running on an IBM System Storage DS8000. The database has a data change rate of 50% per day. Once a week， they must do a point-in-time backup from the database to tape. The time it takes to run the backup now exceeds the backup window allowed. The customer requests a proposal to reduce database downtime caused by running backups， with nearly no impact to production volumes. In addition to the tape backup， which DS8000 feature should a technical specialist propose（） FlashCopy。 FlashCopy SE。 Metro Mirror。 Global Mirror。
按GB7588-2003《电梯制造与安装安全规范》规定，卷筒驱动电梯钢丝绳的安全系数不应小于（）。 10。 12。 16。 20。
A store archive publish job can be started from： （） WebSphere Commerce Accelerator。 WebSphere Commerce Administration Console。 WebSphere Commerce Store Services。 WebSphere Commerce Configuration Manager。
How should TCP/IP be configured on the ent0 network adapter？（）
