9) Which of the following about authentication is/are FALSE? A. Authentication is a security strategy to verify a person's identity before allowing computer or network access to this person. B. If a user wants to prove him/herself is a "trusted" user, he can use a digital certificate issued by a certificate authority (CA). C. Some common authentication methods are biometric identification, digital certificates and token-based authentication. D. In token-based authentication, a user is given a unique token (such as a security code generator used in banking), then without the password and username, the user only needs to provide a correct one-time password generated by the token in order to gain access to the systems. E. Fingerprint recognition is a kind of behavioral biometric authentication. 10) What is/are the advantage(s) of e-commerce? A. Globalization: no distance limitation, global business service, international image. B. It is easy to start and manage a business with low costs. C. There is the possibility of credit card number theft. D. No need of physical company set-ups. E. Not everyone is connected to the Internet.