Given below is a Ruby code snippet with line numbers:
Note: A file named "test" is located at the location "/var/www/ruby/"
1. aFile = File.new("/var/www/ruby/test", "r")
2. if aFile
3.    aFile.syswrite("RUBY Testing")
4.    print "Done!"
5. else
6.    puts "Unable to open file!"
7. end
What is the outcome when the above code is executed?

Ruby code, a = hello world puts a.scan(/(..)(..)/)

Environment variables in Ruby: Statement 1: Environment variable RUBYLIB defines the search path for libraries. Statement 2: Environment variable RUBYLIB_PREFIX modifies the RUBYLIB search path by replacing the prefix of a particular library.

Which of the following statements regarding Ruby variables is incorrect?

DBD::Mysql implements some driver-specific functions to be used In Ruby. Given below is one such function: dbh.func(:insert_id) => Fixnum What is the purpose of this function?

Which of the following options represent correct Ruby syntax?

Command 1: $ ruby -c Command 2: $ ruby -C dir Which of the following statements regarding these two commands are correct?

Assuming that f is an instance of the File class:

Which of the following is used to cancel the method definition?

Statement X: Method names should begin with an uppercase letter. Statement Y: Methods should be defined before calling them, otherwise Ruby will raise an exception for undefined method invoking.

What is output of this Ruby code? foo = 'testing' puts defined? foo puts defined? $_