III. On the original UNIX file system, we are reading the file "lone/two/three.txt" All the directories fit in a single block each, (1) Describe and count the number of disk reads involved in reading the file. Assume no (2) How does FFS improve performance over the basic UNIX file system? (1 point) disk cache/buffer is used. (2 points) (3) How does using the open(...) system call help the performance of the file system (1 point) (4) Lets create a symbolic link called three in directory one pointing at three.txt - Assume that three has a single block of data. List all i-nodes that are modified or created (2 point) (5) Explain two specific scenarios of problems that happen if the system crashes in the middle of part 4. What is their effect? (2 points)