COMPTIA A+ Practice Exam

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What laptop expansion slot uses the PCI bus?

  1. ExpressCard

  2. Mini PCI

  3. Cardbus

  4. USB 3.0 Card

The correct answer is: Cardbus

The correct answer is C Cardbus. This option uses the old PCI bus, which has been replaced by the PCIe bus in newer laptops. Option A, ExpressCard, is incorrect because it uses the newer PCIe bus. Option B, Mini PCI, is incorrect because it is a smaller version of the PCI bus and is generally used for wireless cards and not expansion slots. Option D, USB 3.0 Card, is incorrect because it uses the USB bus rather than the PCI bus.

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