Nothing is more Japanese than the written exam. High school students usually don't get graded on daily work, but instead can study all year for a single test that is close to 100% of their grade. If you fail it, then try again next year.
In "Naruto 5," all the genin (jr. ninja) who hope to advance to chunin (journeyman) must sit a written exam. The catch is, each team passes or fails as a team, using their combined score. If Naruto fails, then Sakura and Sasuke go down too. Naruto's only hope is to cheat, but anyone getting caught cheating is immediately failed, along with his team. A great story, showing Naruto's unique psychological strengths in a tense situation.
Of course, Viz does a great job with this book as with all the Naruto series. My only complaint is that the entire series is in black and white, and the colored parts of the series are also rendered in black and white. I wish they would get as close as possible to the Japanese original, including the colored sections.