A customer brings in a PC that recently stopped working. The technician begins diagnosis and finds the following symptoms: The PC turns on and all fans spin normally. No display output is given either from onboard video or a PCIe video card. There are no POST beep codes even with the CPU and RAM fully removed. Which of the following is the MOST accurate conclusion based on these finding?
A. The PSU wattage is rated too low for the components.
B. The CMOS battery is dead and needs replacement.
C. The PSU has its voltage switch set to 240V.
D. The motherboard has failed and needs replacement.
Answer: A. The PSU wattage is rated too low for the components.
Computer Science & Information Technology
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In the accompanying figure, a _____ is a field or combination of fields that uniquely and minimally identifies a particular member of an entity.
A. primary key B. secondary key C. candidate key D. foreign key
Computer Science & Information Technology