Operating Systems Assignment 2 questions

Operating Systems Assignment 2 questions TRM

1)      a) UNIX case study on file system.

      b) Describe with the help of block diagram, how unix manages virtual memory.

      c) explain the FS organization in unix. Write the block diagram inodes,

       file descriptors,file structures & data blocks.

  

2)      a) describe virtual memory concepts under linux system.

b) describe the linux virtual file system with the help of diagram.

( txn look a side buffer)[TLB].

3)      explain Belady’s anamoly

4)      write a note on page replacement algorithms. Consider the following page ref      

             string:  5432143543215 ref time t1 t2 t3…….. calculate the num of page faults in each of the algorithm 1) FIFO  2) LRU  3) OPTIMAL frame size 3 and 4.

5)      explain thrashing.

6)      write a note on scheduling algorithms. Preemptive & non Preemptive, merits & 

Demerits.                                    

    

7)      write a note on FAT file system (windows) FA12,16,32

8)      A linux organization tree identify diff file system & folders init

/dev   /sfin   /var   /bin  /proc  /opt  /mnt .

       

9)      what are device drive, given case example of a DD, how it is accessed.

-          mouse, keyboard ,nic – any one or two.

10)  write a detailed diagram (unix/linux).

11)  with the help of neat diagram explain virtualization. Discuss the novelity of idea

* analyze in an SME under what circumstance go for virtualization.