Which of the following is NOT and valid scan technique with nmap? 06/14/2017 – by Mod_GuideK 0 Which of the following is NOT and valid scan technique with nmap? A. Window B. SYN C. ACK D. Connect() E. RST SHOW ANSWERSCorrect Answer: E Explanation/Reference: Download Printable PDF. VALID exam to help you PASS.