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

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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