Using a password and a code sent to your phone to log in is called:

  1. Firewall filtering
  2. Hashing
  3. Single sign-off
  4. Two-factor authentication (2FA)
Answer

D) Two-factor authentication (2FA)

2FA combines something you know with something you have. SLO CS-11-A-04 · Knowledge

Computer Science MCQ · More Unit 1: Computer Systems MCQs · Practise