220-1101 Hardware Practice Question
A technician is upgrading a desktop computer's storage. The motherboard has one M.2 slot that supports both SATA and NVMe protocols. The user wants the fastest possible boot drive. Which type of M.2 drive should the technician select?
⚠ Common exam trap
Candidates often assume all M.2 drives are equally fast, overlooking that the M.2 slot can support both SATA and NVMe protocols, and that NVMe is the superior choice for maximum speed.
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
✓
NVMe M.2
The NVMe (Non-Volatile Memory Express) protocol is designed to leverage the high-speed PCIe bus, offering significantly lower latency and higher throughput compared to SATA-based SSDs. Since the motherboard's M.2 slot supports both SATA and NVMe, selecting an NVMe M.2 drive provides the fastest possible boot drive performance.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
SATA M.2
Why it's wrong here
SATA M.2 drives adopt the M.2 card form factor but speak the SATA III protocol, hard-capping transfer rates at 600 MB/s. They typically use a B-key edge connector, while NVMe drives use M-key or B+M-key, but even when installed in an M.2 slot they cannot use the PCIe bus for data. As a result they are a drop-in replacement for older SATA storage but provide negligible performance benefit over a 2.5-inch SSD.
When this WOULD be correct
A technician is upgrading a desktop computer's storage. The motherboard has one M.2 slot that supports both SATA and NVMe protocols, but the user wants to maximize compatibility with an existing system that only has SATA drivers loaded, or the budget is limited and a SATA M.2 drive is more cost-effective.
- ✓
NVMe M.2
Why this is correct
NVMe M.2 drives connect directly to the motherboard's PCIe bus, typically via Gen3 or Gen4 lanes, delivering sequential read/write speeds of 1.5 to 7 GB/s or more. Their low-latency command queue and high throughput make them the optimal choice for a boot drive, far surpassing SATA-based storage. They are physically keyed to fit M.2 slots and are the fastest M.2 form factor.
- ✗
mSATA
Why it's wrong here
mSATA is a legacy mini-SATA form factor that relies on the SATA III interface, capping throughput at about 600 MB/s. It uses a completely different physical connector and wedge-shaped key, so it cannot be inserted into an M.2 slot under any circumstances. Developed for older ultrabooks and tablets, mSATA has been superseded by M.2 and offers no advantage for a modern desktop upgrade.
When this WOULD be correct
A technician is upgrading an older laptop that has an mSATA slot (not M.2) and the user wants a faster boot drive than a traditional HDD but does not require NVMe speeds. In that case, an mSATA SSD would be the correct choice.
- ✗
2.5" SSD
Why it's wrong here
A 2.5-inch SSD is a full-sized SATA drive that connects via a separate 7-pin data cable and 15-pin power cable, not directly to a motherboard slot. Its interface is SATA III, limiting it to roughly 600 MB/s sustained transfers, far below NVMe capabilities. Even though it's physically impossible to install into an M.2 socket, it remains a cheap high-capacity option for drive bays.
When this WOULD be correct
A 2.5" SSD would be correct if the motherboard lacks an M.2 slot or if the user needs to replace an existing 2.5" hard drive or SSD in a system with only SATA ports, and cost or capacity is prioritized over maximum speed.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The 220-1101 exam frequently reuses these exact scenarios with slightly different constraints.
✓NVMe M.2Correct answer▾
Why this is correct
NVMe M.2 drives connect directly to the motherboard's PCIe bus, typically via Gen3 or Gen4 lanes, delivering sequential read/write speeds of 1.5 to 7 GB/s or more. Their low-latency command queue and high throughput make them the optimal choice for a boot drive, far surpassing SATA-based storage. They are physically keyed to fit M.2 slots and are the fastest M.2 form factor.
✗SATA M.2Wrong answer — click to see why▾
Why this is wrong here
SATA M.2 drives use the SATA protocol, which has a maximum throughput of about 600 MB/s, significantly slower than NVMe drives that can exceed 3,000 MB/s. Since the user wants the fastest boot drive, NVMe is the correct choice.
★ When this WOULD be the correct answer
A technician is upgrading a desktop computer's storage. The motherboard has one M.2 slot that supports both SATA and NVMe protocols, but the user wants to maximize compatibility with an existing system that only has SATA drivers loaded, or the budget is limited and a SATA M.2 drive is more cost-effective.
Why candidates choose this
Candidates may confuse the physical M.2 form factor with the protocol, assuming all M.2 drives are equally fast, or they may not understand the performance difference between SATA and NVMe protocols.
✗mSATAWrong answer — click to see why▾
Why this is wrong here
mSATA drives use a different form factor and connector (mini-SATA) and are not compatible with M.2 slots. The motherboard has an M.2 slot, so mSATA cannot be physically installed.
★ When this WOULD be the correct answer
A technician is upgrading an older laptop that has an mSATA slot (not M.2) and the user wants a faster boot drive than a traditional HDD but does not require NVMe speeds. In that case, an mSATA SSD would be the correct choice.
Why candidates choose this
Candidates may confuse mSATA with M.2 SATA, thinking both are similar small form factors, or they may not realize that mSATA is a different physical interface incompatible with M.2 slots.
✗2.5" SSDWrong answer — click to see why▾
Why this is wrong here
The question specifies the motherboard has an M.2 slot, so a 2.5" SSD is incompatible because it uses a SATA data and power cable, not an M.2 connector. The goal is the fastest boot drive, and NVMe M.2 is faster than any 2.5" SSD.
★ When this WOULD be the correct answer
A 2.5" SSD would be correct if the motherboard lacks an M.2 slot or if the user needs to replace an existing 2.5" hard drive or SSD in a system with only SATA ports, and cost or capacity is prioritized over maximum speed.
Why candidates choose this
Candidates may think any SSD is fast enough and overlook the specific M.2 slot requirement, or they confuse 2.5" SSDs with M.2 form factors, assuming all SSDs fit any slot.
Analysis generated from the official 220-1101blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Go deeper
Related to this question
Learn chapter
Optical Drive Types: DVD, Blu-Ray
Key term
Peripheral Component Interconnect Express
PCI Express (PCIe) is a high-speed expansion bus standard that connects internal hardware components like graphics cards, SSDs, and network adapters to a computer's motherboard.
Key term
Non-volatile Memory Express
Non-volatile Memory Express (NVMe) is a high-speed interface protocol that connects storage devices like SSDs directly to the CPU for much faster data transfer than older technologies like SATA.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 220-1101 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 220-1101 exam.