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Tuesday, 4 April 2017

IPU BCA Semester 6 - Linux Environment - End Term Paper (2014)

END TERM EXAMINATION
SIXTH SEMESTER [BCA] MAY-JUNE 2014
Paper Code: BCA-306

Subject: Linux Environment

(2011 Onwards)

Time: 3 Hours Maximum Marks: 75

Note: Attempt any five questions including Q.1 which is compulsory.
          Select one question from each unit.


Q1:
(a) Explain the architecture of Linux. (5)
(b) What are different ways of managing & switching users in Linux? (5)
(c) Differentiate between TCHS and Korn shell. (5)
(d) How Linux & Unix is related? Explain. (5)
(e) What is a process in Linux? Explain briefly. (5)




UNIT-I

Q2:
(i) Differentiate between ext2, ext3 and ext4 file systems. (6)
(ii) What are different run levels in Linux? Explain methods to change these run levels. (6.5)

Q3:
(i) Explain in details the Linux file systems architecture with diagram.(10)
(ii) What is Archiving? Give two examples of archive commands. (2.5)

UNIT-II

Q4:
(i) What are redirection operators? Explain the usage with examples (6)
(ii) Differentiate between symbolic link and hard link. (6.5)

Q5:
(i) Describe the level of security in Linux. (6)
(ii) What is mounting and unmounting? Explain. (6.5)

UNIT - III
Q6:
(i) Differentiate between sod and grep with examples. (6)
(ii) What is a sticky bit? Explain the usage. (6.5)


Q7:
(i) Explain the contents of/etc/passwd file.          (2.5)
(ii)Explain the usage of following commands (2×5=10)

(a) cut
(b) tr
(c) diff
(d) uniq
(e) wc

UNIT - IV

Q8:
(i) Explain how Linux OS schedules the processes. (7.5)
(ii) Explain the role of a process descriptor in Linux. (5)

Q9:
(i) Explain the ways to track the processes in Linux. (7.5)
(ii) Explain the usage of system calls in Linux with example. (5)

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