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FC0-U71 Practice Question: Which TWO of the following are common file…
Which TWO of the following are common file formats for images?
⚠ Common exam trap
CompTIA often tests the distinction between file formats by including common non-image formats like PDF or TXT, leading candidates to confuse document or text formats with image formats.
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
✓
PNG
PNG (B) is a correct answer because it is a raster image format that uses lossless compression and supports transparency, making it a standard format for web graphics and screenshots. JPEG (E) is also correct because it is a widely used raster image format that applies lossy compression, ideal for photographs and continuous-tone images. The other options do not belong: PDF (A) is a document format for page layout and text/vector content, TXT (C) is a plain-text format, and MP3 (D) is a compressed audio format.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
PDF
Why it's wrong here
PDF is a page-description document format for text and print layout, not a raster or vector image format, so it does not belong in a list of image formats. It is tempting because PDFs can embed images, and it would be correct when the requirement is portable documents.
- ✓
PNG
Why this is correct
PNG is a standard raster image format, satisfying the question's requirement for common image file formats. It uses lossless compression and supports transparency via an alpha channel, unlike JPEG's lossy compression. This makes it a valid selection alongside other image formats such as JPEG, GIF or BMP.
- ✗
TXT
Why it's wrong here
TXT is a plain-text container, carrying no pixel data or image encoding, so it cannot store a picture. It is tempting because TXT is a widely recognised, universally readable file format, and it would be the right choice when the requirement is to capture unformatted text such as logs, notes or configuration output.
- ✗
MP3
Why it's wrong here
MP3 is a lossy audio compression format carrying sound data, not image pixels or vector graphics, so it cannot be a common image format. It is tempting because it is a widely recognised media container, and it would be correct when the requirement is compressed audio playback.
- ✓
JPEG
Why this is correct
JPEG is a lossy compressed raster format, ubiquitous for photographs and web images because it shrinks file size substantially while retaining acceptable visual quality. It satisfies the question's requirement for a common image file format, unlike text, audio or video formats.
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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.