This is funny, but also a sign of how dedicated the entire country is towards the examinations of its children. I understand this to be the norm in the Middle East and Asia. For children's Exams To be taken very seriously by their parents.
to counter your argument, I would say that Harvard is not able to contain the number of cheaters at its university. Or the business schools are not able to contain the amount of cheating that happened in their education. we do not broad stroke such problems with single word terms.
like others have said, this system of internet blackouts is quite common in other countries as well. Some countries will even coordinate television programming to be different because children have to take exams during that week.