Online tests to determine the level of knowledge of Desktop Linux

Currently, there are many online tests on the Internet. You could come across such well-known online testing systems as:
http://www.brainbench.com/xml/bb/common/testcenter/freetests.xml
http://test.specialist.ru/tests.asp?c=1
http://basic.com.ua/tests.php
where you can check your level of knowledge, in the field of programming, working with Windows (my very first test was in the distant 98 year), with Microsoft Office, Web programming, etc.

But I noticed one small injustice: in the whole variety of these tests, the themes of Linux, * nix systems, and also open source products are practically not covered.
The most that could be found are online tests for administering Linux and FreeBSD.

But how can an ordinary Linux user who works in Desktop Linux and spends most of his time at the mouse, without even realizing that there is a console? Indeed, today the Linux OS is no longer just a server. This and a large number of regular users who prepare documents, work with e-mail, etc ...
It was decided to fill this gap.
')
At the moment, thanks to the efforts of good people, three tests have already appeared for ordinary mortals http://ualinux.com/online-tests
Working with spreadsheets in OpenOffice / LibreOffice Calc (ALFA)
Ubuntu Desktop Linux Base User (BETA)
Strong user of Ubuntu Desktop Linux (BETA)
On the approach two more:
work with office applications;
work with graphics.

But this is only a small part. There are so many sections that need to be covered.
Among the readers of this resource there are many teachers, employees of educational centers and people with rich life experience. If you have the desire and opportunity to take part in the creation of new tests, I will wait for your suggestions at integrator@ualinux.com

Details about testing here http://ualinux.com/ru/online-test-law