Q1. Describe the file protection methods incorporated in a UNIX file system.
Q2. Define the terms UFD and MFD. Illustrate the most common schemes for defining the logical structure of a directory?
Q3. What do you mean by the term Virtual File Systems? How is it implemented?
Q4. Why is it hard to protect a system in which users are permitted to do their own Input-Output?
Describe how relocation helps for the protection of data?
Q5. Illustrate the merits of Contiguous allocation? Write down the drawbacks of contiguous allocation of the disk space?
Q6. A hard disk consists of 63 sectors per tracks, 10 platters each with 2 recording surfaces and 1000 cylinders. The address of sector is given as a triple where c is the cylinder number, h is the surface number and s is the sector number. Zeroth sector is addressed as <0, 0, 0>, the 1st sector is addressed as <0, 0, 1> and so forth. Compute the sector number whose address is <400, 16, 29>.