Describe UNIX in brief with help of structure diagram. Also discuss the UNIX layers.

Write a short note on Buffer Cache. Explain its advantages and disadvantages.

With any 2 of the scenarios explain the retrieving, reading and writing of the Buffer.

Write down algorithm for both reading and writing of the disk block.

With help of block diagram, explain structure of files.

Write step by step algorithm for conversion of a path name to an i-node.

What is an importance of the directories? Isolate the files extensions depending upon their i-node number.

Write a note on Super Block Constituents.

How to allocate the disk block? Explain with algorithm.

Enlist the fields of Super block.