单项选择题
A laser printer has an error tray two paper jam but tray two does not have any paper in it. Which of the following should the technician do FIRST? （）
A. Replace the tray two paper sensor and run the printer self test.
B. Remove the tray two paper sensor and clean the printhead.
C. Check the tray two paper sensors for blockage and run the printer self test.
D. Check the tray two paper rollers for blockage, clean the printhead, and run the printer self test.
相关考题
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单项选择题
Which of the following is the MOST secure method to authenticate users?（）
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?（）
A. “Can you avoid using the PC that crashed?”
B. “What was the last thing that occurred before the PC had problems?”
C. “What were you doing before the PC went down?”
D. “What was the last thing you did before the PC crashed?” -
单项选择题
A customer reports the optical drive is no longer responding. Which of the following questionsshould be asked FIRST?（）
A. “Did you log in with an administrator account?”
B. “Have you been to any inappropriate websites?”
C. “What have you changed since the optical drive worked properly?”
D. “What has changed since the optical drive worked properly?”
