Modern Operating System (April – 2015) [IDOL - Old Course | Question Paper]

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B.Sc.IT: Semester – III

[Modern Operating System]

Question Paper (April - 2015) [Old Course]

Time: 3 Hours
Total Marks: 100

N.B.:  (1) Questions No. 1. Is Compulsory.
           (2) Attempt any four from Q.2 TO Q.7.

Q.1 Attempt The Following Questions: (20 Marks)
(A) Explain UNIX Operating System Architecture.
(B) What is Environment Variable? Explain with examples.
(C) Explain inode in detail.

Q.2 Attempt The Following Questions: (20 Marks)
(A) Explain the following commands with syntax and example:
      (i) mkdir
      (ii) who
      (iii) grep
      (iv) Is
      (v) man
      (vi)cp
      (vii) wc
      (viii) cmp
      (ix) sort (cat)

Q.3 Attempt The Following Questions: (20 Marks)
(A) What is Shell? Explain various types of Shell.
(B) Write a shell script to display the entered number is even or odd.
(C) Explain chmod command.

Q.4 Attempt The Following Questions: (20 Marks)
(A) What is process? Explain different states of process.
(B) Explain semaphores.
(C) Explain System Cal.

Q.5 Attempt The Following Questions: (20 Marks)
(A) What are the file permissions available in UNIX? Give example.
(B) Explain characteristics of Good Password.
(C) What are the contents of Password File?

Q.6 Explain with syntax: – (20 Marks)
(A) How do you create a file?
(B) How do you delete a file?
(C) Which command is used to see your username?
(D) How do you copy a file?

Q.7 Attempt Any Three From The Following: (15 Marks)
(A) Write a note on Grep Command.
(B) Explain the syntax of awk command.
(C) Explain the following command:
      (i) calender
      (ii) date
      (iii) echo
      (iv) password

      (v) banner

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