How many ways can a session data be stored? 

The default file extension of PHP files is

Which timezone format can be used to identify a timezone?

  Which of the below symbols is a newline character? 

What is phpBB?

Which method is invoked when an undefined property is accessed?

  Which one of the following function is used to send an email using PHP script?
 

 Which one of the following functions finds the last occurrence of a string, returning its numerical position?

 What will be the output of the following PHP code? 

<?php

function a() 

{

function b()

{

echo 'I am b';

}

echo 'I am a';

}

   b();

   a();

?>

  Which one of the following is the very first task executed by a session enabled page?