Which of the following sequence of commands extracts the third image from a tape that was created using the backup command?（） tctl -f /dev/rmt0.1 fsf 2 ; tar -xv file3。 tctl -f /dev/rmt0.0 fsf 3 ; dd if=file3 pf =/dev/mt0.1。 tctl -f /dev/rmt0.1 fsf 2 ; dd if=/dev/rmt0.1 of=file3。 tctl -f /dev/rmt0.0 fsf 3 ; dd if=/dev/rmt0.1 of=file3。
A型行为
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。
对于高职高专毕业生对就业岗位、薪资期望水平进行调查，适宜采用（）方式。 市场普查。 重点市场调查。 典型市场调查。 随机市场调查。
After running the vmstat command， which of the following would most likely cause the value in the blocked column to be unusually high？（） Kernel thread。 Too many users。 Memory shortage。 Network contentio。
The WebSphere Application Server provides a Dynamic Cache Monitor. Which of the following can be monitored using this tool？（）
