Maximum internal fragmentation


suppose we have files F1 to F4 in sizes 7345, 678, 877, and 1123 bytes. our disks have fixed physical block size of 512bytes for allocation. how many physical blocks would be needed to store these four files if we were to use a chained allocation strategy assuming that we need 5bytes of information to determine the next block in link? which file results in the maximum internal fragmentation.