OSD QUESTION PAPER

DPES

DHOLE PATIL COLLEGE OF ENGINEERING WAGHOLI , PUNE

DEPARTMENT OF COMPUTER ENGINEERING

(FIRST TERM FOR ACADEMIC YEAR 2015-2016 )                                                                   SUBJECT:OSD (UNIT-I)                                    MARKS:25

CLASS TEST-I                                                                                                       Date: 29/6/15

Q1 Explain with neat diagram UNIX system architecture.                                                 [6]

Q2.Write short note on MBR                                                                                           [4]

Q3 State the advantages and disadvantages of Buffer chache.                                           [6]

Q4. What are system calls? Explain 1.fork () 2.open () 3.read ()                                      [4]

Q5 Explain in detail Monolithic and Micro Kernel                                                            [5]

Q6 Explain the race condition in assigning inodes.                                                            [4]

Q7 Elaborate on the following algorithms in brief (any two)                                              [8]

1 iget

2 ifree

3 namei

4 getblk