单项选择题
A. Ask the customer to wait and answer the phone call.
B. Talk on the phone while listening to the customer.
C. Hand the phone to a coworker to answer the call.
D. Silence the phone and then listen to the customer.
单项选择题 A technician is servicing the Human Resource director’s computer which contains payroll software and salary information. Which of the following should the technician do to ensure confidentiality of the payroll information?（）
单项选择题 Which of the following connector types uses a single RCA style connector?（）
单项选择题 Two new PCs will have a DVD-RW drive for support use. The PCs will be used for Point of Salestransactions and everything will be password protected or disabled. Which of the following is the BEST way to disable the DVD-RW drives?（）