・ 音 ケン,ゲン
Sino-Vietnamese: nghiệm
馬 (horse) for meaning, the same right-hand element as 険 for sound: you test a horse by riding it. Test, trial, verification — 試験 an exam.
Stroke data: KanjiVG (CC BY-SA 3.0) — kanjivg.tagaini.net
明日は日本語の試験です。 (あしたはにほんごのしけんです)
Tomorrow is the Japanese exam.