Systems Admin Question

12. What shell's wid-card is used to match any number of characters including none? A. B. ? D. [ijkl 13. What command is used to list contents of directories? A. tar B. dir C. IR D. Is 27. Select the statements which assert the differences between soft and hard links? A. Soft links can reside on different file system while hard links have to be on the same file system as that of the file B. Soft links are links to the file name while hard links are links to the directory of the file. C. Soft links are links to the directory of the file while hard links are links to the file name D. None of the above