FC0-U71 Infrastructure Practice Question
A user wants to upgrade their desktop computer to faster storage. Which of the following storage interfaces provides the highest data transfer speeds?
⚠ Common exam trap
FC0-U71 often tests whether candidates confuse the M.2 form factor with the NVMe protocol — an M.2 SATA drive is no faster than a 2.5" SATA SSD, so the speed comes from NVMe over PCIe, not from the slot shape.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
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NVMe M.2
NVMe M.2 drives connect directly to the PCIe bus, bypassing the SATA/AHCI bottleneck entirely. NVMe was designed for flash storage with deep parallel command queues (up to 64K queues with 64K commands each), delivering sequential reads in the 3,000–7,000+ MB/s range on PCIe 3.0/4.0. This makes it the fastest storage interface among the options by a wide margin.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
NVMe M.2
Why this is correct
NVMe M.2 drives communicate directly over the PCIe bus rather than through a SATA controller, delivering far higher throughput and lower latency. This makes it the fastest interface among the options for upgrading desktop storage.
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USB 2.0 flash drive
Why it's wrong here
USB 2.0 flash drives transfer at roughly 480 Mbps, far below internal SATA or NVMe interfaces, and the USB bus adds latency. USB flash media suits portable file transfer and bootable recovery tools, not the internal system drive where throughput matters.
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SATA SSD
Why it's wrong here
SATA III tops out near 600 MB/s, whereas an NVMe SSD over PCIe delivers several gigabytes per second, so SATA cannot claim the highest transfer speeds. It is tempting because SATA SSDs are cheap and universally compatible, making them correct for older desktops lacking an M.2 slot.
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External HDD
Why it's wrong here
An external HDD spins magnetic platters behind a USB bridge, delivering far lower throughput and higher latency than an internal NVMe or SATA SSD. It is tempting because external drives offer large capacity cheaply, which suits bulk backup or portable storage, but not the fastest boot and application performance in a desktop.
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About these practice questions
This FC0-U71 question is part of Courseiva's 988-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CompTIA exam blueprint
This FC0-U71 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the FC0-U71 exam.