While installing Sample Data, you got error as demonstrated in the diagram. What does it mean?

In the User Manager, which Public Front-end User group(s) cannot edit articles?

How many levels can each menu have?

With the 'Mass Mail' tool, which of the following recipients can you select?

How will you enable cache?

How will you make Joomla 1.0x extensions work with Joomla 1.5?

Which of the following are valid methods for installing a Joomla extension?

Which database types does Joomla support?

In the User Manager, which of the following options can be applied for individual users?

Which of the following mailers does Joomla support? (Select all that apply.)

There are 21 different standard parameter types supported in the Joomla Framework for all extension types (templates, components, modules and plugins). Which of the following parameter types are not supported in the Joomla Framework?