The memory_limit is only applicable if ___ is enabled when you configure PHP. Fill in the blank.

What is the default value of max_execution_time directive? This directive specifies how many seconds a script can execute before being terminated.

Which one of the following statements should be used to disable the use of two classes administrator and janitor?

Which of the following statements is used to add an attachment to the mail?

Which one of the following statements should be used to disable just the fopen(), and file() functions?

How many configuration directives pertinent to PHP’s mail function are available?

Which one of the following function is used to send a e-mail using PHP script?

Which one of the following statements can be used to establish port 80 connection with www.google.com?

What is the default port number of HTTP’s?

Which one of the following function returns the port number of a specified service?