mediumMultiple Choice
FC0-U71 Practice Question: A user wants to store 100 high-resolution photos
A user wants to store 100 high-resolution photos. Which unit of measurement is MOST appropriate for the total file size?
⚠ Common exam trap
It's easy for candidates to confuse bits with bytes or underestimate the size of high-resolution photos, leading them to pick smaller units like kilobytes or bytes, but the correct unit must match the practical scale of the data.
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
✓
Gigabytes
High-resolution photos typically range from 5 to 25 megabytes each, so 100 such photos would total hundreds of megabytes to several gigabytes. Gigabytes (GB) is the most appropriate unit because it matches the expected order of magnitude for this data volume, whereas smaller units like kilobytes or bytes would require unwieldy large numbers. This aligns with common storage measurements in IT, where GB is standard for large file collections.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Kilobytes
Why it's wrong here
Kilobytes measure individual small files, so 100 high-resolution photos totalling gigabytes would require an unwieldy six-figure kilobyte count. Kilobytes are the sensible unit for a single text document or small icon, not an aggregate photo library.
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Bytes
Why it's wrong here
Bytes express storage at single-character granularity, so a photo collection spanning gigabytes becomes a meaningless billion-digit figure. Bytes are the correct unit for tiny values such as a single ASCII character or a short configuration string.
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Bits
Why it's wrong here
Bits measure transmission rates and encoding, not stored file volume; file sizes are quoted in bytes. Bits are the right unit for link speed or colour depth, so they cannot express the total size of 100 stored photographs.
- ✓
Gigabytes
Why this is correct
Gigabytes suit 100 high-resolution photos because each image typically occupies several megabytes, so the aggregate reaches the gigabyte range. This unit keeps the total concise and readable, satisfying the stem's demand for the most appropriate measurement of combined file size rather than bytes, kilobytes or terabytes.
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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.