Which signal is sent by the kill command by default? 06/14/2017 – by Mod_GuideK 0 Which signal is sent by the kill command by default? A. HUP(1) B. QUIT(3) C. KILL(9) D. TERM(15) SHOW ANSWERSCorrect Answer: D Explanation/Reference: Download Printable PDF. VALID exam to help you PASS.