Recent and related:

Algeria cuts internet nationwide during the baccalaureat exams - https://news.ycombinator.com/item?id=36285086 - June 2023 (163 comments)

Also:

Algeria turns off its internet to keep students from cheating on exams – CNN - https://news.ycombinator.com/item?id=17393923 - June 2018 (1 comment)

Algeria shuts down internet to prevent cheating during high school exams - https://news.ycombinator.com/item?id=17363270 - June 2018 (4 comments)

Also—loosely related and sparsely commented:

Internet goes dark for millions in Indian state's bid to stop exam cheats - https://news.ycombinator.com/item?id=28686329 - Sept 2021 (0 comments)

Indian state cuts internet to prevent cheating in exam - https://news.ycombinator.com/item?id=28670023 - Sept 2021 (0 comments)

Exam Cheats Cited in Three-Day Internet Shutdown in Ethiopia - https://news.ycombinator.com/item?id=20180544 - June 2019 (1 comment)

Total Internet Shutdown in Ethiopia - https://news.ycombinator.com/item?id=20163896 - June 2019 (1 comment)

Ethiopia shut down its internet to prevent exam cheating - https://news.ycombinator.com/item?id=14456234 - May 2017 (0 comments)

Iraq shuts down internet nationwide to prevent students from cheating on exams - https://news.ycombinator.com/item?id=11736257 - May 2016 (0 comments)

Iraq shuts down entire country's internet to “prevent cheating” - https://news.ycombinator.com/item?id=11719094 - May 2016 (0 comments)