https://gongquiz.com/main/pages/search.php?q=9%EA%B8%89+%EA%B5%AD%EA%B0%80%EC%A7%81+%EA%B3%B5%EB%AC%B4%EC%9B%90+%EB%84%A4%ED%8A%B8%EC%9B%8C%ED%81%AC%EB%B3%B4%EC%95%88
https://gongquiz.com/main/pages/%EB%8B%A4%EC%9D%8C+%EA%B7%B8%EB%A6%BC%EC%9D%80+TCP+half+open+%EC%8A%A4%EC%BA%94+%EC%A0%88%EC%B0%A8%EC%9D%B4%EB%8B%A4++%E3%89%A0%EA%B3%BC+%E3%89%A1%EC%97%90+%EB%93%A4%EC%96%B4%EA%B0%88+%ED%8C%A8%ED%82%B7%EC%9D%84+%EB%B0%94%EB%A5%B4%EA%B2%8C+%EC%97%B0%EA%B2%B0.quiz??mode=practice&quizNo=706331&historyNo=reset
[]
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practice
156519794