- A
Cloud Shell saves all files to Cloud Storage automatically
Why wrong: Cloud Shell does not automatically sync files to Cloud Storage — only $HOME is persistent within Cloud Shell itself.
- B
Only $HOME (~) has persistent 5 GB storage; other directories use ephemeral container storage
Cloud Shell allocates 5 GB of persistent disk mounted at the home directory. All other paths are in the container's ephemeral filesystem, which resets between sessions.
- C
Cloud Shell stores files in Firestore, which only retains home directory paths
Why wrong: Cloud Shell doesn't use Firestore for file storage — $HOME persistence comes from a separate persistent disk.
- D
Files outside $HOME are deleted after 24 hours automatically
Why wrong: Files outside $HOME are ephemeral for the session duration — they're not deleted on a 24-hour schedule but rather when the session container is recycled.
Quick Answer
The answer is that only the $HOME directory (~) has persistent 5 GB storage, while all other directories use ephemeral container storage. This behavior is explained by Cloud Shell’s architecture: each user is allocated a dedicated 5 GB persistent home directory backed by Cloud Storage, which survives session restarts and timeouts, whereas the rest of the container’s filesystem is ephemeral and is discarded when the session ends. On the Google Associate Cloud Engineer exam, this question tests your understanding of Cloud Shell’s storage model and is a common trap where candidates assume the entire environment is persistent. A key memory tip is to think of Cloud Shell as a temporary workspace with a permanent “backpack”—your home directory is the backpack that carries your tools and scripts between sessions, while everything else is wiped clean each time you start fresh.
Google ACE Setting up a cloud solution environment Practice Question
This ACE practice question tests your understanding of setting up a cloud solution environment. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 team uses Cloud Shell for all GCP CLI operations. A developer notices that files they create in Cloud Shell's home directory persist between sessions, but files in other directories do not. What explains this behavior?
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
Only $HOME (~) has persistent 5 GB storage; other directories use ephemeral container storage
Cloud Shell provides each user with a persistent 5 GB home directory ($HOME) backed by Cloud Storage. Files created outside this directory reside in the container's ephemeral storage, which is discarded when the Cloud Shell session ends or is restarted. This design ensures user configurations and scripts are preserved while maintaining a clean, temporary environment for other operations.
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.
- ✗
Cloud Shell saves all files to Cloud Storage automatically
Why it's wrong here
Cloud Shell does not automatically sync files to Cloud Storage — only $HOME is persistent within Cloud Shell itself.
- ✓
Only $HOME (~) has persistent 5 GB storage; other directories use ephemeral container storage
Why this is correct
Cloud Shell allocates 5 GB of persistent disk mounted at the home directory. All other paths are in the container's ephemeral filesystem, which resets between sessions.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Cloud Shell stores files in Firestore, which only retains home directory paths
Why it's wrong here
Cloud Shell doesn't use Firestore for file storage — $HOME persistence comes from a separate persistent disk.
- ✗
Files outside $HOME are deleted after 24 hours automatically
Why it's wrong here
Files outside $HOME are ephemeral for the session duration — they're not deleted on a 24-hour schedule but rather when the session container is recycled.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may assume Cloud Shell behaves like a traditional persistent VM where all files survive, or they may confuse the persistent home directory with automatic full-disk backup, leading them to choose option A or D.
Detailed technical explanation
How to think about this question
Under the hood, Cloud Shell runs on a temporary Compute Engine VM with a containerized environment. The $HOME directory is mounted from a persistent disk that is backed by a Cloud Storage bucket (using the gcloud storage or gsutil layer), providing up to 5 GB of durable storage. This persistent disk survives VM restarts and session timeouts, while all other directories (e.g., /tmp, /opt) are part of the container's ephemeral filesystem, which is destroyed when the container is recreated. A real-world scenario where this matters is when a developer installs tools or clones repositories outside $HOME; those changes will be lost after the session ends, leading to confusion if not understood.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Questions learners often ask
What does this ACE question test?
Setting up a cloud solution environment — This question tests Setting up a cloud solution environment — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Only $HOME (~) has persistent 5 GB storage; other directories use ephemeral container storage — Cloud Shell provides each user with a persistent 5 GB home directory ($HOME) backed by Cloud Storage. Files created outside this directory reside in the container's ephemeral storage, which is discarded when the Cloud Shell session ends or is restarted. This design ensures user configurations and scripts are preserved while maintaining a clean, temporary environment for other operations.
What should I do if I get this ACE question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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Last reviewed: Jun 11, 2026
This ACE practice question is part of Courseiva's free Google Cloud 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 ACE exam.
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