FC0-U71 Tech Concepts and Terminology Practice Question
A technician is explaining the difference between volatile and non-volatile memory to a trainee. Which TWO of the following are examples of volatile memory? (Select TWO.)
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
✓
DDR4 RAM
Volatile memory loses data when power is off. RAM (including DDR4 and DDR5) and cache memory (L1/L2/L3) are volatile. ROM and SSDs are non-volatile.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
ROM
Why it's wrong here
ROM (Read-Only Memory) is non-volatile.
- ✗
BIOS firmware
Why it's wrong here
BIOS firmware is stored in non-volatile memory.
- ✓
DDR4 RAM
Why this is correct
DDR4 is a type of volatile RAM.
- ✓
L3 cache
Why this is correct
Cache memory is volatile.
- ✗
SSD
Why it's wrong here
SSD is non-volatile flash storage.
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Same concept, more angles
2 more ways this is tested on FC0-U71
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Which component of a computer stores data permanently even when the power is turned off?
easy- ✓ A.SSD
- B.CPU cache
- C.GPU
- D.RAM
Why A: SSDs and HDDs are non-volatile storage; they retain data without power.
Variation 2. Which type of memory is volatile and loses its data when the computer is turned off?
easy- A.SSD
- B.ROM
- C.HDD
- ✓ D.RAM
Why D: RAM (Random Access Memory) is volatile and loses data on power loss.
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.