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Building Database Applications in PHP Week 3 Practice Quiz Answer

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Building Database Applications in PHP Week 3 Practice Quiz Answer

Visit this link:  Building Database Applications in PHP Week 2 Practice Quiz Answer

 

Sessions

Question 1) How does a web server recognize a particular web browser?

  • Web link
  • None of these
  • Name
  • Cookies

Question 2) The Web is a stateful system.

  • True
  • False

Question 3) The browser does not always maintain a connection to the server.

  • True
  • False

Question 4) Cookies can be made to last for how long?

  • Minutes
  • Months
  • Till the session ends
  • Any of these

 Question 5)If a browser is contacting a server for the very first time, the browser does not send cookies in its first request.

  • True
  • False

Question 6) Sessions are server controlled and are protected from the users direct access to it.

  • True
  • False

Question 7) session_start() is used to

  • Relocate a session
  • Restore an old session
  • Rename a session
  • Make a new session

 Question 8) session_start() can be placed anywhere in the php file.

  • True
  • False

Question 9) The [_____] function is used to remove a session.

  • session_destroy

Question 10) $_SESSION is a

  • Associative array
  • All of these
  • Super global variable
  • Variable that stores session details

Question 11) PHP applications can make changes to the $_SESSION variable.

  • True
  • False

Question 12) End users can make changes to the $_SESSION variable.

  • True
  • False

Question 13) Generally, if there are no cookies for a web site in the browser, PHP will make a new session as soon as the user tries to access the url.

  • True
  • False

Question 14) When do session cookies expire?

  • After two hours
  • After the expire date passes
  • When the browser is closed
  • After the user closes a tab on their browser
  • After 24 hours

Question 15) Where are non-session cookies stored?

  • In the cloud on a separate memcached server 
  • On the hard drive of the PHP server
  • In the database on the server
  • On the hard drive of the user’s computer
  • In the memory of the PHP server

Question 16) What is the typical session identifier?

  • A large random number chosen by the server
  • The MD5 hash of the user’s email address
  • The MD5 hash of the domain name of the server
  • A large random number chosen by the browser
  • The number of seconds since January 1, 1970

Question 17) If a browser does not support cookies, how can PHP maintain a session?

  • By including the session identifier as a parameter every GET and POST request
  • By using an MD5 hash of the user’s email address as the session identifier
  • By using the “secure cookie” header to force the browser to set a cookie
  • By using the browser’s network address as the session identifier