单项选择题 While selecting files during an interactive restore with ufsrestore， you are interrupted by a junior  administrator before you can complete the file selection process and start the restore. After answering the administrator’s question， you realize that you have forgotten which files you had already selected for the restore.  How can you determine which files are already marked for extraction and restore？ （）

单项选择题 A file system has been corrupted and needs to be restored.  Which file contains the ufsdump levels for this file system？ （）

多项选择题 A corrupted file system is now repaired and back in use. Some， but not all of the files within the file  systems have been deleted. The only backup of this file system is a month-old tar archive. This archive will need to be restored as root.  Which two statements correctly describe the effects of the restore operation？（）