Question: what are two advantages and two disadvantages of biometrics as a security measure?
Answer: Security. We used to have passwords with numbers, alphabets, symbols, etc. ... 
Accuracy. Traditional security systems mess up regularly costing us a big amount of time, money and resources. ... 
Accountability. ... 
Convenient. ... 
Scalability. ... 
ROI. ... 
Flexibility. ... 
Trustable.