Testing. Attempts to test
Each test can have unlimited number of attempts to pass, and can have a certain number of attempts provided for settings.
Available number of attempts to pass the test can be seen in My jobs.
Also, for each test before the testing displays the number of attempts to pass, as well as the number of available attempts:
After trying to run out for the test button is available, "ask for another attempt." The button sends a request to the site's administration, about what needs further attempt to pass the test.
The user can receive only one additional attempt to testing each query.
Administration may approve or reject the request for the addition of attempts. If the request is approved, then the test is available.