单项选择题
A. Frayed or broken cables
B. UPS is unplugged
C. NIC and sound card are disabled in Device Manager
D. Speakers are muted
单项选择题 Which of the following describes the random access memory limitations with Vista 64-bit operating system?()
单项选择题 A user wants to install an external hard drive using the fastest connection available. Which of the following should the technician recommend?()
单项选择题 Which of the following is an example of a hot swappable component on a laptop?()