The sig parameter passed to the authentication method is a md4 hash of the current request and your secret key.

Email notifications must always include the fb:name tag in the beginning email body.

To find out if a user has added your application you should use the following method:

What restrictions are put on your applications logo?

Which is not a FQL table?

The deletion associated to data.dropObjectType is reversible.

Which of these statements is not true of queries in the FQL API?

hCalendar and hCard are examples of:

To how many countries can you set a Facebook ad to target?

Your application should not send notifications to users who have not visited your application in the last:

What are the four elements of a story on Open Graph?