Free 200-550 – 200-550 Practice Test Question

Answer is in the explanation below.

Answer is in the explanation below.

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  Limit the amount of memory a script can consume

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  Limit the total amount of memory PHP uses on the entire server

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  Limit the maximum execution time of a script

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  Limit the maximum number of concurrent PHP processes

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  Limit the maximum number of concurrent PHP threads
  
  

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  Return the first data faster

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  Return all data faster

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  Free connection faster for others scripts to use

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  Use less memory
  
  

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• ○

  set(), get()

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  __set(), __get()

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  __put(), __receive(), __exists()

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  set(), get(), isset()

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  __isset(), __unset()
  
  

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• ○

  addslashes()

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  htmlentities()

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  htmlspecialchars()

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  strip_tags()

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  quotemeta()
  
  

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• ○

  $default_opts = array('http'=>array('user_agent'=>"My Cool Browser"));
  $default = stream_context_set_default($default_opts);

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  stream_context_set_option("user_agent", "My Cool Browser");

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  ini_set('user_agent', "My Cool Browser");

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  stream_context_set_option($context, "http", "user_agent", "My Cool Browser");
  
  

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  header_add()

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  header()

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  http_set_status()

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  http_response_code()

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  http_header_set()
  
  

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• ○

  array_unique_values

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  array_distinct

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  array_count_values

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  array_intersect

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  array_values
  
  

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• ○

  Check one of the following

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  one of the following

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  ✔ one of the following
  
  

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• ○

  A syntax error in the function declaration line

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  An error, because null is not an instance of 'a'

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  Nothing, because a null value is being passed to renderVal()

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  NULL
  
  

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  $_POST

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  $_SESSION

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  $_GET

• ○

  $_SERVER
  
  

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  copy($source_file, $destination_file);

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  copy($destination_file, $source_file);

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  stream_copy_to_stream($source_file, $destination_file);

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  stream_copy_to_stream($destination_file, $source_file);

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  stream_bucket_prepend($source_file, $destination_file);
  
  

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  9

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  6

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  0
  

• ○

  3
  
  

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  array('c', 'b', 'a')

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  array(2, 1, 0)

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  array('a', 'b', 'c')

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  None of the above