question:
It verifies that the software functions properly even when it receives invalid or unexpected inputs, thereby establishing the robustness of input validation and error-management routines.[citation needed]
What method is used to cause a system to fail?

answer: no

question:
With 78.4 million inhabitants, Iran is the world's 17th-most-populous country.
How many people live in Iran?

answer: yes

question:
In May 2011, YouTube reported in its company blog that the site was receiving more than three billion views per day.
How many videos was youtube serving per day as of May 2010?

answer: no

question:
These stops were called , , "thin, thick, middle" by Koine Greek grammarians.
Who referred to the Classical Attic dialect stops by the three distinctions?

answer:
yes