This is the interview process for the 9th grade military service (communications) exam (expected questions related to majors) in communications engineering.
For information on courses and preparation for the 9th grade military service (communications, electronics), 9th grade civil servant, and public enterprise major exams, please visit:
Professor Han-ki Kim's Naver Cafe: https://cafe.naver.com/hangie
Professor Han-ki Kim's website: Jeongtong Edu https://baraemedu.com/