Quick Answer
The answer is RAM, or Random Access Memory, because it is the classic example of volatile memory. Volatile memory requires a continuous flow of electrical power to hold data; as soon as the system is powered off, all information stored in RAM is instantly erased. This is the core technical distinction from non-volatile memory, such as a hard drive or SSD, which retains data even without power. On the CompTIA ITF+ FC0-U61 exam, this concept often appears in questions that test your understanding of memory types, and a common trap is confusing RAM with storage devices like a USB flash drive. Remember the simple tip: volatile memory is “volatile” like a volatile liquid—it vanishes when the power goes away. For the exam, just think “RAM is gone when the power is gone.”
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.
A technician is explaining the difference between volatile and non-volatile memory. Which of the following is an example of volatile memory?
Hard disk drive
Why wrong: HDDs are non-volatile; they retain data without power.
RAM
RAM is volatile; data is lost when power is off.
Solid-state drive
Why wrong: SSDs are non-volatile storage.
USB flash drive
Why wrong: USB flash drives are non-volatile.
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 because it requires continuous electrical power to retain data; once the system is powered off, all data stored in RAM is lost. This is in contrast to non-volatile memory, which retains data without power. The question specifically asks for an example of volatile memory, and RAM is the classic example.
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.
Hard disk drive
Why it's wrong here
HDDs are non-volatile; they retain data without power.
RAM
Why this is correct
RAM is volatile; data is lost when power is off.
Related concept
Read the scenario before looking for a memorised answer.
Solid-state drive
Why it's wrong here
SSDs are non-volatile storage.
USB flash drive
Why it's wrong here
USB flash drives are non-volatile.
Common exam traps
The trap here is that candidates often confuse 'memory' with 'storage' and incorrectly assume that any device used to save files (like a USB drive or SSD) is volatile, when in fact volatile memory specifically refers to components like RAM that lose data on power loss.
Detailed technical explanation
Volatile memory, such as DRAM (Dynamic RAM), stores each bit in a separate capacitor within an integrated circuit; these capacitors leak charge over time and must be refreshed thousands of times per second to maintain data. In contrast, non-volatile memory like NAND flash uses floating-gate transistors that trap electrons to represent data, allowing retention for years without power. This distinction is critical in system design: volatile memory is used for active program execution due to its speed, while non-volatile memory is used for long-term storage.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the FC0-U61 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
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 because it requires continuous electrical power to retain data; once the system is powered off, all data stored in RAM is lost. This is in contrast to non-volatile memory, which retains data without power. The question specifically asks for an example of volatile memory, and RAM is the classic example.
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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