[单选] Which of the following best describes the lock protection provided by DB2 for the current row of a cursor?（）

A . The cursor is only protected from updates and deletes by concurrent applications.
B . The row is only protected from positioned updates and deletes that reference another cursor of the same application.
C . The cursor is protected from positioned updates and deletes that reference another cursor of a different application.
D . The row is protected from updates and deletes by the current application and from positioned updates and deletes that reference another cursor of the same application.

An administrator learns that users are unable to login to a server via ssh. After making a telnet connection to the server, how can the administrator check the status of the sshd subsystem?（） lssys -a com。 lssys -a sshd。 lssrc -s sshd。 lssrc -s tcpi。不属于优化行为的是（）虚拟化。外包。调优。咨询。 TS2900自动加载机，目前支持多少个数据带槽位？（） 8。 9。 10。 22。 A healthcare provider has two applications that they need to redundantly protect in a SAN environment. Their patient record application runs on Oracle 11i and consists of many small， randomly accessed files. The database is kept on three clustered Sun servers and currently uses 30 TB of data space. Their imaging application that retains and manages x-rays， consists of Filenet， CommonStore， and TSM running on an IBM Power750 server， and is currently using 65 TB of data space. Which of the following disk solutions meets the customer’s requirement（） IBM System Storage DS8700 2 way。 IBM System Storage DCS9900。 IBM System Storage DS8700 4 way。 IBM XIV Storage System。《中学教师专业标准》要求教师：引导（），培养良好的思维习惯和（）的能力。 Which of the following best describes the lock protection provided by DB2 for the current row of a cursor?（）

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[单选] Which of the following best describes the lock protection provided by DB2 for the current row of a cursor?（）

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