Click the Exhibit button and examine the diagram, which illustrates the components performing tasks within an Oracle Shared Sever environment. Which task is being performed by component 4?()
A、The PMON process registers the request in the response queue.
B、A shared sever places the process request in the response queue.
C、A request within the request queue is processed by an idle shared server process.
D、A dispatcher assigns a request from the request queue to and idle shared server process.
Unix中,哪个目录下运行系统工具,例如sh,cp等?()
A、/bin/
B、/lib/
C、/etc/
D、/
将第一张幻灯片副标题的动画效果设置为:“切入”、“自左侧”;将第二张幻灯片版式改变为“垂直排列标题与文本”;在演示文稿的最后插入一张版式设置为“仅标题”幻灯片,键入“细说生活得失”。
将第二张幻灯片版式设置为“标题和内容”,把这张幻灯片移为第三张幻灯片;将第二张幻灯片的文本部分动画效果设置为“飞入”、“自底部”。
多级目录结构中,重名问题得到了解决,同一目录中文件或目录重名是允许的。
A、对
B、错
Two data files have been deleted at the operating system level by accident. Your database is running in ARCHIVELOG mode and online backups are taken nightly. One of the data files that has been deleted belongs to the USERS tablespace on the other belongs to the SYSTEM tablespace. How can you recover from this situation?()
A、Shut down the database, restore the two data files and then start up the database.
B、Take the system and users tablespace offline, restore the two data files, recover the two datafiles, and then bring the SYSTEM and USERS tablespaces online.
C、Shut down the database, restore the two data files, start up the database in MOUNT mode, recover the two data files, and then alter the database open.
D、Take the SYSTEM and USERS tablespaces offline, recover the two datafiles and then bring the SYSTEM and USERS tablespaces online.