Download JNTUH MCA 4th Sem R19 2022 March-April 864AA Python Programming Question Paper

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Code No: 864AA

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

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R19

MCA IV Semester Examinations, March/April - 2022

PYTHON PROGRAMMING

Time: 3 Hours Max.Marks:75

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Answer any five questions

All questions carry equal marks

1. a) What are the various ways of quoting strings in python? Explain how to read strings from user and print them with an illustrative python program.
   b) Illustrate the following built-in-functions in python: [5+10]
   1) cmp() ii) repr() iii) str() iv) type() v) isinstance()

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2. a) Demonstrate the concept of implicit and explicit conversion.
   b) Summarize various string built-in-functions briefly. [7+8]
3. Explain the following file system built-in functions with illustrative examples: [15]
   a) stat() b) access() c) chmod() d) umask()
4. a) State the advantages of using modules in programming.
   

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   b) Write a python program to raise division-by-zero-exception and explain how to handle using python exception handling mechanism in detail. [5+10]
5. What are regular expressions? Examine how Python supports regular expressions through ‘re’ module. [15]
6. a) What are threads and processes? How is a thread different from a process?
   b) Explain the following ‘tHRead’ module functions in detail with example codes in python.
   1) start_new_thread() ii) allocate_lock() iii) acquire() [6+9]

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7. What are the core urlparse module functions used to manipulate url strings? Give a detail description of each function/method. [15]
8. What is the need of Object-Relational Managers? Explain in detail about python ORM SQLAIchemy basic feature with an example application. [15]

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