Community QuestionSeen on 5 CBTsRe-created in 6 study sets this year

PCIe (Peripheral Component Interconnect Express)

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Answer

An expansion bus architecture that uses serial communications rather than parallel communications. x1, x2, x4, x8, x16, x32 (Number of lanes for communication vary) (3.4)

2 of 5 indexed CBT versions give this answer·Answer index rebuilt Aug 17, 2026

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This question appears on 5 CBT versions we've indexed, and they don't all give the same answer. Exam editions change and answer keys get re-cut, so more than one of these was correct on the test it came from. Here is each of them, and how many versions give it.

2 of 5 versionsmost versions

An expansion bus architecture that uses serial communications rather than parallel communications. x1, x2, x4, x8, x16, x32 (Number of lanes for communication vary) (3.4)

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2 of 5 versions

An expansion bus architecture that uses serial communications rather than the parallel communications of PCI. Also called PCI Express and PCI-E.

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1 of 5 version

Is a high-speed serial computer expansion bus standard designed to replace the older PCI, PCI-X, and AGP bus standards. Sends data on one wire and receives data on one wire. Most common expansion bus, it offers multiple Lanes.

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