Which of the following choices can be described as a type of social engineering?
Answer Description
Vishing (Voice Phishing) is a type of phishing attack that uses a telephone or VOIP call to trick an unsuspecting user into divulging important information. Xmas Attack, MAC Spoofing and DDoS are not examples of social engineering, but are malicious attacks.
Wikipedia
Voice phishing is a form of criminal phone fraud, using social engineering over the telephone system to gain access to private personal and financial information for the purpose of financial reward. It is sometimes referred to as 'vishing' - a portmanteau of "voice" and phishing.
Landline telephone services have traditionally been trustworthy; terminated in physical locations known to the telephone company, and associated with a bill-payer. Now however, vishing fraudsters often use modern Voice over …
Voice phishing - Wikipedia, the free encyclopedia