Which of the following describes WebSphere Application Servers dynamic caching？（） Stores and retrieves Java objects from memory。 Provides disk offloading capability。 Cannot use session information to cache servlets or JSPs。 Can be shared but cannot be replicated among server。
被动扩散
A system administrator has filesystems that should not be mounted during system startup. How can the system administrator prevent the /data filesystem from being mounted during subsequent boots？（） mount -no /data。 chfs -A no /data。 mount -t nfs /data。 chfs -a type=nfs /data。
Which two operations are NOT performed by the DUPLICATE command in Recovery Manager （RMAN） while duplicating a running database？（） Creating the control file for the duplicate database。 Restoring the target data files to the duplicate database。 Performing complete recovery using all available backups。 Generating a new， unique DBID for the duplicate database。 Copying the online redo log files from the target database to the duplicate database。
工程造价的核心内容有（）等等。 投资估算。 设计概算、修正概算。 施工图预算。 工程结算。 竣工决算。
Which of the following sequence of commands extracts the third image from a tape that was created using the backup command?（）
