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1997 Course Advanced Unix Programming (Elective II)

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Total No. of Questions : 10] P1273 [Total No. of Pages : 2 [3664]-91 B.E. (Computer Engineering) Advanced Unix Programming (Elective - II) (1997 Course) (410251) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) Attempt any three questions from section-I and three questions from section-II. 2) Figures to the right indicate full marks. 3) Draw neat diagrams wherever necessary. 4) Make suitable assumptions wherever necessary. SECTION - I Q1) a) What is the need of macros? Give two examples. b) What is process accounting? List the benefits of it. Q2) a) What is the need of shell programming? Give two examples. b) Write the pseudo code for the creations of zombie processes. [8] [8] [8] [8] Q3) a) What is race condition? Give at least two examples to support it. [8] b) Explain any two important file types from network communication point of view. [8] Q4) a) Why reentrant functions are required? Give two examples. b) Describe the directory structure of Unix in detail. Q5) Write short notes on : [8] [8] [18] a) Signals. b) Slow system calls. c) Unreliable Signals. SECTION - II Q6) a) How to tune the performance of system? Explain any two key parameters. [8] b) Describe the RPC in detail. [8] P.T.O. Q7) a) Describe the working of shared memory. [8] b) Compare between stream and datagram mode provided in socket programming. [8] Q8) a) Explain the organization of serial line buffer. b) Explain the stepwise procedure for rebuilding the kernel. [8] [8] Q9) a) What is binary semaphore? Give some applications which require the binary semaphore rather than general semaphore. [8] b) What are the differences between the simple pipe and stream pipe? [8] Q10) Write short notes on : [18] a) LWP. b) FIFO. c) Raw Sockets. xxxx [3664]-91 2

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