Exam Details

Subject unix and shell programming
Paper
Exam / Course p.g.d.c.a.
Department
Organization Alagappa University Distance Education
Position
Exam Date December, 2017
City, State tamil nadu, karaikudi


Question Paper

DISTANCE EDUCATION
P.G.D.C.A. EXAMINATION, DECEMBER 2017.
Second Semester
UNIX AND SHELL PROGRAMMING
(2011 calendar year onwards)
Time Three hours Maximum 100 marks
PART A — × 8 40 marks)
Answer any FIVE questions.
1. Describe how UNIX is more secured than other operating
systems.
2. Explain in detail about address, data and control bus.
3. Write a short note on variables used in UNIX.
4. Briefly explain on the exception handling mechanism in
UNIX.
5. Write short note on command line argument.
6. Explain in short about substitution facility of SED filler.
7. What are the useful permission setting for a file and a
directory? Write the syntax for the following
cut unmask chmod.
8. What is meant by filters? Give examples of filters.
Sub. Code
22
DE-2334
2
WK 6
PART B — × 15 60 marks)
Answer any FOUR questions.
9. Describe the architecture of UNIX operating system, with
all its modules.
10. Discuss the structure of regular file. How byte offset can
be converted into a block number? Discuss
algorithmically.
11. Write short notes on following scheduling commands.
at batch time cron
12. What are the basic functions of shell? Explain the
different types of shells used in UNIX OS.
13. Explain in detail on the relational operators used in Unix
with an example for each.
14. Elucidate on the various types of looping structures used
in UNIX.
15. Write a brief account on functions and procedures.
Explain the concept of CUT-COPY-PASTE
commands in vi editor.
——————


Subjects

  • c and data structures
  • communication skills
  • computer graphics
  • digital computer organization
  • object oriented programming and c++
  • operating system
  • relational database management systems
  • unix and shell programming