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Posted By: Sree.... Member Level: Diamond Posted Date: 21 May 2008
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2007 Andhra Pradesh State Jawaharlal Nehru Technological University B.Tech ADVANCED UNIX PROGRAMMING Set No. 4 Question paper
Code No: RR320505 Set No. 4
III B.Tech II Semester Regular Examinations, Apr/May 2007
ADVANCED UNIX PROGRAMMING
( Common to Computer Science & Engineering, Information Technology
and Computer Science & Systems Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
? ? ? ? ?
1. Explain the following commands with syntax
(a) wc
(b) umask
(c) ulimit
(d) mount [4x4=16]
2. What is the purpose of grep command? Explain the various options available with
the grep command with an example. [4+8+4]
3. (a) Briefly explain the file directories.
(b) Write in detail about Device drivers. [8+8]
4. What is meant by process termination? Explain the various types of process ter-
minations with suitable example. [4+8+4]
5. (a) What are the phases in signaling process? Explain what is meant by the
lifetime of a signal. [3+5]
(b) What is meant by signal catching function? What are the advantages of signal
function. [3+5]
6. (a) Explain in detail about the requirement of file locking mechanism.
(b) Explain in detail about fcntl( ) function. [8+8]
7. (a) Explain, “How do you multiplex, multiple writers to the same pipe”.
(b) Explain, “about the events occurred, when you call the popen( ) and pclose(
) functions”? [8+8]
8. (a) With an example, Explain in detail about the process of writing Messages on
to a Queue. [4+4]
(b) With an example, Explain in detail about the process of Reading a Message
from the Queue. [4+4]
? ? ? ? ?
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