Download JNTUH MCA 2nd Sem R17 2020 November 842AC Scripting Languages Question Paper

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Code No: 842AC Rl 7

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JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
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MCA 1I Semester Examinations, October/ November - 2020
SCRIPTING LANGUAGES
Time: 2 Hours Max.Marks:75
Answer any five questions

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All questions carry equal marks
1. a) What is the need of chop( ) and chomp( ) functions in PERL? Illustrate with an example.
b) Explain the different types control statements available in Perl with syntax and example script. [7+8]
2. Illustrate the concept of creating and using packages and modules in Perl.
3. Give the syntax of pack( ) and unpack( ) functions in Perl and explain. [7+8]

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4. Discuss about PHP’s File-Upload functions in detail.
5. Explain the procedure to ping a server in PHP with an example script. [7+8]
6. Explain uplevel, eval, global commands in Tcl with-example.
7. Demonstrate how to encrypt and decrypt data using MCrypt. [7+8]
8. Explain about exception handling mechanism in python with an illustration. [15]

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9. What is a subroutine? How to define and call a subroutine with arguments in PERL? Explain in detail.
10. Write a Perl script to sort the elements of an array. [7+8]
11. Describe various data structures available in Perl. [15]
12. Explain the four types of authentication methodologies in PHP and also mention their merits and demerits. [15]
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