Zhèwèi kǎobà yī nián tōngguò le wǔ mén zīgé kǎoshì.
This test ace passed five qualification exams in one year.
Tips
usage
考霸 is internet slang built on the 'X-霸' pattern (霸 'tyrant/champion') that also gives 学霸 (top student) and 麦霸 (karaoke hog). Casual register only - don't use it in a formal letter of recommendation.