单项选择题
A customer, Jill, has a dim image on her internal LCD panel, but when connecting to an external display, the image is fine. Which of the following is MOST likely the cause?（）
A. Inverter
B. LCD cable
C. LCD panel
D. System I/O
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相关考题
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单项选择题
A user attempts to login to a bookmarked site but is prompted for their social security number,mother’s maiden name and date of birth. Which of the following has MOST likely happened?（）
A. The website has updated the security policies.
B. The user’s identity has been stolen.
C. The browser has been hijacked.
D. The user typed the website address incorrectly. -
单项选择题
A computer’s onboard LPT1 port fails. Which of the following I/O cards should be installed to fix this problem?（）
A.Serial
B.Parallel
C.FireWire
D.USB -
单项选择题
A technician recently installed a new firewall. Which of the following ports must be open to permit HTTPS traffic?（）
A.21
B.23
C.80
D.443
