Quick Answer
The answer is RAM, or Random Access Memory, because it is classified as volatile memory, which requires a constant flow of electrical power to maintain the stored data. When the power is turned off, the electrical charges within the memory cells dissipate almost instantly, causing all data to be lost—this is the core technical concept behind why RAM is used for temporary, active program storage rather than permanent files. On the CompTIA ITF+ FC0-U61 exam, this question tests your understanding of the fundamental difference between volatile and non-volatile memory, often appearing as a straightforward multiple-choice item where common traps include confusing RAM with storage drives like SSDs or HDDs. A helpful memory tip is to associate the word “volatile” with “volatile” as in “easily evaporated” or “gone in a flash”—just like RAM’s data vanishes the moment you cut the power.
This FC0-U61 practice question tests your understanding of it concepts and terminology. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which type of computer memory loses its data when the power is turned off?
HDD
Why wrong: Hard Disk Drive is non-volatile storage.
ROM
Why wrong: Read-Only Memory is non-volatile.
RAM
RAM is volatile and loses data when power is off.
SSD
Why wrong: Solid-State Drive is non-volatile storage.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
RAM
RAM (Random Access Memory) is volatile memory, meaning it requires continuous electrical power to retain data. When the power is turned off, the electrical charges in the memory cells dissipate, causing all stored data to be lost. This is why RAM is used for temporary storage of actively running programs and data.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
HDD
Why it's wrong here
Hard Disk Drive is non-volatile storage.
ROM
Why it's wrong here
Read-Only Memory is non-volatile.
RAM
Why this is correct
RAM is volatile and loses data when power is off.
Related concept
Read the scenario before looking for a memorised answer.
SSD
Why it's wrong here
Solid-State Drive is non-volatile storage.
Common exam traps
The trap here is that candidates often confuse 'memory' with 'storage' and mistakenly think HDDs or SSDs lose data on power loss, or they assume ROM is volatile because it is 'read-only' and cannot be easily modified.
Detailed technical explanation
RAM is typically implemented using DRAM (Dynamic Random Access Memory) cells, which store data as charge in tiny capacitors that must be refreshed thousands of times per second to prevent leakage. In contrast, SRAM (Static RAM) uses flip-flops and retains data as long as power is supplied but is faster and more expensive, often used for CPU caches. A real-world scenario: if a computer crashes or loses power unexpectedly, any unsaved work in RAM is lost, which is why saving to a non-volatile drive (like an SSD or HDD) is critical.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
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FAQ
IT Concepts and Terminology — This question tests IT Concepts and Terminology — Read the scenario before looking for a memorised answer..
The correct answer is: RAM — RAM (Random Access Memory) is volatile memory, meaning it requires continuous electrical power to retain data. When the power is turned off, the electrical charges in the memory cells dissipate, causing all stored data to be lost. This is why RAM is used for temporary storage of actively running programs and data.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 25, 2026
This FC0-U61 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-U61 exam.
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