If “/hardlink” is a hard link that points to “/home/user1/ex…
If “/hardlink” is a hard link that points to “/home/user1/exam2.txt”, how many disk I/Os will reading the 1st block of the file using “/hardlink”, i.e., fd = open(“/hardlink”, “r”); read(fd, buf, 4); Assume that (1) no data or metadata blocks are cached in the beginning, (2) each directory file contains only 1 data block, e.g., the information of all the children of “/” are stored in its single data block, and (3) any metadata or data block is cached in memory once loaded from disk for the first time.