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ACE Practice Question: A team uses Cloud Shell for all GCP CLI operations
This ACE practice question tests your understanding of a team uses cloud shell for all gcp cli operations. 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 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
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Cloud Shell saves all files to Cloud Storage automatically
Cloud Shell does not automatically sync files to Cloud Storage — only $HOME is persistent within Cloud Shell itself.
B
Distractor review
Cloud Shell stores files in Firestore, which only retains home directory paths
Cloud Shell doesn't use Firestore for file storage — $HOME persistence comes from a separate persistent disk.
C
Distractor review
Files outside $HOME are deleted after 24 hours automatically
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.
D
Best answer
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.
Common exam trap
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Technical deep dive
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Related practice questions
Related ACE practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
What is the correct order of the Google Cloud resource hierarchy from highest to lowest level?
Question 2
A compliance archive stores legal documents accessed at most once per quarter. Which Cloud Storage class minimizes storage cost while meeting that access pattern?
Question 3
Which gcloud command creates a Compute Engine VM named 'web-01' using the e2-medium machine type in zone us-central1-a?
Question 4
A team wants to receive an email alert when the average CPU utilization of VMs in a managed instance group exceeds 80% for more than 5 minutes. What should they create in Cloud Monitoring?
Question 5
A junior developer needs read-only access to all GCP resources in a project. Which IAM role grants the minimum permissions required?
Question 6
A startup creates its first Google Cloud project. Before deploying any paid resources, what must be linked to the project?
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FAQ
Questions learners often ask
What does this ACE question test?
Static NAT maps one inside address to one outside address.
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 5 GB of persistent storage in $HOME (~). Files created outside the home directory exist in ephemeral container storage that is discarded when the session ends. This is a key operational consideration for scripts and tools stored in Cloud Shell.
What should I do if I get this ACE question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related ACE NAT questions on configuration and troubleshooting.
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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.