Perl Interview Questions For Freshers
  1. How do you write a basic "Hello, World!" program in Perl?
  2. What are scalar variables in Perl? How are they declared and used?
  3. How do you create an array in Perl? How do you access its elements?
  4. What are control structures in Perl? Give an example of each type.
  5. What is a subroutine in Perl? How is it defined and called?
  6. How do you read input from the command line in Perl?
  7. How do you open and read from a file in Perl?
  8. How do you write to a file in Perl?
  9. What is regular expression matching in Perl? Give an example.
  10. How does Perl handle variable scoping? Give an example.
  11. What is the difference between my and local variable declarations in Perl?
  12. How do you work with command-line arguments in Perl? Give an example.
  13. What is the difference between foreach and while loops in Perl? Give an example of each.
  14. How do you concatenate strings in Perl? Give an example.
  15. How do you use if-else statements in Perl? Give an example.
  16. How do you use switch-case statements in Perl? Give an example.
  17. How do you work with regular expressions in Perl? Give an example of a simple regular expression.
  18. How do you use the chomp function in Perl? Give an example.
  19. How do you use the split function in Perl? Give an example.
  20. What are filehandles in Perl? How do you open and close them?
  21. How do you use the printf function in Perl? Give an example.
  22. How do you use the for loop in Perl? Give an example.
  23. How do you use the map function in Perl? Give an example.
  24. How do you use the grep function in Perl? Give an example.
  25. How do you use the sort function in Perl? Give an example.
  26. How do you use the reverse function in Perl? Give an example.
  27. How do you use the scalar function in Perl? Give an example.
  28. How do you use the localtime function in Perl? Give an example.
  29. How do you use the sleep function in Perl? Give an example.
Perl Intermediate Interview Questions
  1. What is object-oriented programming in Perl? Give an example of a class and an object.
  2. How do you use modules in Perl? Give an example of a commonly used module.
  3. How do you handle errors and exceptions in Perl? Give an example.
  4. How do you use references in Perl? Give an example.
  5. How do you manipulate strings in Perl? Give an example of a string manipulation function.
  6. How do you use hashes in Perl? Give an example of a hash function.
  7. How do you use anonymous subroutines in Perl? Give an example.
  8. How do you implement inheritance in Perl? Give an example.
  9. How do you work with regular expressions in Perl? Give an example of a complex regular expression.
  10. How do you use the DBI module in Perl? Give an example of a database operation.
  11. How do you work with binary data in Perl? Give an example of a binary manipulation function.
  12. How do you work with complex data structures in Perl? Give an example of a complex data structure.
  13. How do you use the Test::More module in Perl to write unit tests? Give an example.
  14. How do you work with databases in Perl? Give an example of a database connection.
  15. How do you use the File::Find module in Perl to traverse directories? Give an example.
  16. How do you work with JSON data in Perl? Give an example of a JSON manipulation function.
  17. How do you use Perl to generate reports and charts? Give an example.
  18. How do you use the LWP module in Perl to work with web pages? Give an example.
  19. How do you use Perl to parse XML data? Give an example of an XML parsing function.
  20. How do you use the CGI module in Perl to process web forms? Give an example.
  21. How do you use the GD module in Perl to manipulate images? Give an example.
  22. How do you work with sockets and network programming in Perl? Give an example.
  23. How do you use the DateTime module in Perl for date and time calculations? Give an example.
  24. How do you use the Config::IniFiles module in Perl for reading and writing configuration files? Give an example.
  25. How do you use the Parallel::ForkManager module in Perl for parallel processing? Give an example.
  26. How do you use the Term::ReadLine module in Perl for command-line interfaces? Give an example.
  27. How do you use the Text::CSV module in Perl for reading and writing CSV files? Give an example.
  28. How do you use the Spreadsheet::WriteExcel module in Perl for generating Excel spreadsheets? Give an example.
  29. How do you use the XML::Simple module in Perl for parsing and generating XML? Give an example.
  30. How do you use the Email::Simple module in Perl for sending email? Give an example.
Perl Interview Questions For Experienced
  1. How do you optimize Perl code for performance? Give some techniques and examples.
  2. How do you use Perl to interact with the operating system? Give examples of system calls.
  3. How do you work with multithreading in Perl? Give an example.
  4. How do you use the XS interface in Perl to write C code? Give an example.
  5. How do you work with Unicode in Perl? Give examples of Unicode functions.
  6. How do you use pack and unpack functions in Perl? Give an example.
  7. How do you use the CPAN module in Perl? Give an example of a CPAN module.
  8. How do you use Perl to generate dynamic web pages? Give an example.
  9. How do you use Perl to manipulate and analyze large datasets? Give examples of data analysis techniques.
  10. How do you use Perl to automate system administration tasks? Give an example.
  11. How do you use the Moose module in Perl for object-oriented programming? Give an example of a Moose class.
  12. How do you use the Devel::NYTProf module in Perl for profiling and debugging? Give an example.
  13. How do you use the Template Toolkit module in Perl for generating dynamic web pages? Give an example.
  14. How do you work with binary files in Perl? Give an example of a binary file manipulation function.
  15. How do you use the CPAN Testers module in Perl to test your modules on different platforms? Give an example.
  16. How do you use Perl to write a daemon process? Give an example.
  17. How do you use the Perl Data Language module for scientific computing? Give an example.
  18. How do you use Perl to create and consume web services? Give an example.
  19. How do you use the Perl Debugger for debugging Perl code? Give an example.
  20. How do you use the AnyEvent module in Perl for asynchronous programming? Give an example.
  21. How do you use the MooseX::Declare module in Perl for declarative syntax? Give an example.
  22. How do you use the Dancer2 module in Perl for web application development? Give an example.
  23. How do you use the Mojolicious module in Perl for web application development? Give an example.
  24. How do you use the Plack module in Perl for building web applications and middleware? Give an example.
  25. How do you use the Test::MockObject module in Perl for mocking objects in unit tests? Give an example.
  26. How do you use the Data::Printer module in Perl for debugging and printing data structures? Give an example.
  27. How do you use the Chart::Gnuplot module in Perl for generating charts? Give an example.
  28. How do you use the Coro module in Perl for cooperative multitasking? Give an example.