Q. Which one of the following function checks for the existence of DNS records?

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Q. Which one of the following function is used to return an array consisting of various DNS resource records pertinent to a specific domain?

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Q. Which one of the following function is used to retrieve the MX records for the domain specified by hostname?

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Q. What is the default port number of HTTPs?

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

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

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

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

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

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

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Q. How many ways can a session data be stored?

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Q. Which directive determines how the session information will be stored?

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Q. Which one of the following is the default PHP session name?

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Q. If session.use_cookie is set to 0, this results in use of..

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Q. If the directive session.cookie_lifetime is set to 3600, the cookie will live until..

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Q. Neglecting to set which of the following cookie will result in the cookie’s domain being set to the host name of the server which generated it.

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Q. What is the default number of seconds that cached session pages are made available before the new pages are created?

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Q. What is the default time(in seconds) for which session data is considered valid?

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Q. Which one of the following function is used to start a session?

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Q. Which function is used to erase all session variables stored in the current session?

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