单项选择题
A. User ID, a strong password, and a fingerprint scanner
B. User ID, a strong password, and a token based device
C. User ID and two levels of strong password requirements
D. User ID, a strong password, and a smart card
单项选择题 A frustrated customer has called about their computer that is not functioning correctly. Which of the following is the BEST question to ask the user?（）
单项选择题 A customer reports the optical drive is no longer responding. Which of the following questionsshould be asked FIRST?（）
单项选择题 A person calls in asking for the name of the vendor that the technician uses for the organizations firewall hardware. Which of the following is the BEST action for the technician to take?（）