30 Which type of attack is often used as a part of penetration testing to solicit information from employees over the telephone? Man-in-the-middle Social engineering Denial-of-service Port redirection 31 A network engineer viewing logs on an intrusion detection system sees that internal users have been running NMAP on their computer. What are the users doing? Smurf attack Port scan Ping flood Buffer overflow 32 A student is angry with another student and wants to damage the intended victim's computer but does not have the skills needed to do it. The perpetrator resorts to downloading malicious code from the Internet to carry out the intended attack. Which type of attacker is the perpetrator? Script kiddie Red team White hat Gray hat