The correct answer is that the deleted files are still in the recycle bin or trash folder, taking up space. On Android devices, when you delete large files, they are not permanently erased; instead, they are moved to a hidden trash or recycle bin within apps like Files by Google or the Gallery app, and the system continues to count that storage as occupied until the bin is emptied. This explains the frustrating Android insufficient storage after deleting files scenario, where the available space remains unchanged despite apparent cleanup. On the CompTIA A+ Core 2 220-1202 exam, this question tests your understanding of Android’s file management and the common trap where technicians assume deletion equals immediate free space. A useful memory tip is “Trash takes space”—always check and empty the recycle bin before troubleshooting storage errors.
220-1102 Mobile OS and App Troubleshooting Practice Question
This 220-1202 practice question tests your understanding of mobile os and app troubleshooting. 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 user is unable to install a new app on their Android tablet because the device claims there is 'insufficient storage,' even though they have deleted several large files. What is the most likely reason for this error?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Why wrong: A corrupted SD card would affect external storage, but the error is about internal storage, and deleting files wouldn't resolve a corruption issue.
B
The app is incompatible with the Android version.
Why wrong: Incompatibility would show a different error, such as 'app not compatible,' not 'insufficient storage.'
C
The deleted files are still in the recycle bin or trash folder, taking up space.
Android devices often move deleted files to a recycle bin; these must be emptied to free up space.
D
The tablet's battery is too low to complete the installation.
Why wrong: Low battery may prevent installation but would show a low battery warning, not a storage error.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The deleted files are still in the recycle bin or trash folder, taking up space.
On Android devices, deleted files are moved to a recycle bin or trash folder (e.g., in the Files by Google app or the Gallery app's trash), not permanently erased. The system still counts these files as occupied storage until the trash is emptied, so even after deleting large files, the available space remains unchanged, causing the 'insufficient storage' error during app installation.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
The device's SD card is corrupted.
Why it's wrong here
A corrupted SD card would affect external storage, but the error is about internal storage, and deleting files wouldn't resolve a corruption issue.
✗
The app is incompatible with the Android version.
Why it's wrong here
Incompatibility would show a different error, such as 'app not compatible,' not 'insufficient storage.'
✓
The deleted files are still in the recycle bin or trash folder, taking up space.
Why this is correct
Android devices often move deleted files to a recycle bin; these must be emptied to free up space.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The tablet's battery is too low to complete the installation.
Why it's wrong here
Low battery may prevent installation but would show a low battery warning, not a storage error.
Common exam traps
Common exam trap: answer the scenario, not the keyword
CompTIA often tests the misconception that deleting files immediately frees up space, ignoring the recycle bin/trash mechanism that is standard on modern Android devices.
Trap categories for this question
Command / output trap
Incompatibility would show a different error, such as 'app not compatible,' not 'insufficient storage.'
Detailed technical explanation
How to think about this question
Android's Files app and many OEM skins (e.g., Samsung My Files, Google Photos) implement a recycle bin that retains deleted files for 30 days by default. The system's storage calculation includes these trashed files in the 'used' space until the bin is manually emptied or the retention period expires. This is a common user oversight, as the recycle bin is often hidden in a submenu and not immediately visible in the main storage settings.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 220-1202 question in full detail.
Mobile OS and App Troubleshooting — This question tests Mobile OS and App Troubleshooting — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The deleted files are still in the recycle bin or trash folder, taking up space. — On Android devices, deleted files are moved to a recycle bin or trash folder (e.g., in the Files by Google app or the Gallery app's trash), not permanently erased. The system still counts these files as occupied storage until the trash is emptied, so even after deleting large files, the available space remains unchanged, causing the 'insufficient storage' error during app installation.
What should I do if I get this 220-1202 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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