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FC0-U71 Practice Question: A technician is selecting a storage solution for…
A technician is selecting a storage solution for a home server that requires fast access speeds and redundancy against a single drive failure. Which TWO technologies should be considered?
⚠ Common exam trap
Candidates often confuse RAID 0 with RAID 1, mistakenly thinking RAID 0 provides redundancy because it improves performance, or they overlook that SSDs are necessary for fast access speeds, assuming HDDs are sufficient for a home server.
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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SSD
SSD (Solid State Drive) provides fast access speeds due to its use of NAND flash memory, which eliminates mechanical seek times and rotational latency found in HDDs. This makes it ideal for a home server requiring rapid data retrieval. RAID 1 (mirroring) writes identical data to two drives, offering redundancy against a single drive failure by allowing the system to continue operating if one drive fails.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
SSD
Why this is correct
SSD delivers the fast access speeds the home server requires, using flash memory with no moving parts and far lower latency than spinning disks. It addresses the performance half of the requirement, while redundancy against a single drive failure must come from a separate mechanism.
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Cloud storage
Why it's wrong here
Cloud storage is off-site and accessed over a network, so it cannot provide the local block-level redundancy against a single physical drive failure that a home server array requires. It is tempting because it does protect data against site disasters and drive loss via provider replication, making it correct for off-site backup rather than primary local storage.
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HDD
Why it's wrong here
HDDs are mechanical, with seek and rotational latency far exceeding SSDs, and a single drive offers no redundancy against failure. It is tempting because HDDs give large capacity at low cost, and they would suit bulk archival storage where speed and drive-failure tolerance are not required.
- ✓
RAID 1
Why this is correct
RAID 1 mirrors identical data across two drives, so either disk can fail without data loss, satisfying the single-drive-failure redundancy constraint. Reads are served from both members concurrently, improving access speed. It requires no parity calculation, unlike RAID 5, keeping writes simple for a home server.
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RAID 0
Why it's wrong here
RAID 0 stripes data across drives purely for throughput, offering zero fault tolerance: losing one drive destroys the entire array, so it fails the redundancy requirement outright. It is tempting because it genuinely delivers the fast access speeds the scenario also asks for, and would be the right pick where performance alone matters and data is disposable.
Quick reference
RAID Level Comparison
| RAID Level | Min Disks | Fault Tolerance | Read | Write | Usable Capacity |
|---|---|---|---|---|---|
| RAID 0 | 2 | None | Excellent | Excellent | 100% |
| RAID 1 | 2 | 1 disk | Good | Moderate | 50% |
| RAID 5 | 3 | 1 disk | Good | Moderate | 67–94% |
| RAID 6 | 4 | 2 disks | Good | Lower | 50–88% |
| RAID 10 | 4 | 1 disk per mirror | Excellent | Good | 50% |
RAID is not a backup strategy — it protects against disk failure but not against accidental deletion, ransomware, or site-level events.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.