Google ACE Practice Question: Ensuring successful operation of a cloud solution
This ACE practice question tests your understanding of ensuring successful operation of a cloud solution. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 developer deployed a new version of a Compute Engine instance but the startup script fails to run. The developer needs to debug the startup script. Which step should be taken first?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "first"
Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Review the serial port 1 output in the Google Cloud console.
Serial port 1 output in the Google Cloud console captures the instance's serial console logs, including startup script execution output and any errors. This is the first and most direct step to debug a failing startup script because it shows the script's stdout, stderr, and any system messages during boot, without requiring network access or additional tools.
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.
✗
RDP into the instance and check the system logs.
Why it's wrong here
RDP requires Windows and network access; not first step.
✗
Check the instance's metadata for startup script errors.
Why it's wrong here
Metadata contains the script but not its execution output.
✗
Recreate the instance with a new image.
Why it's wrong here
Redundant; does not help debug the issue.
✓
Review the serial port 1 output in the Google Cloud console.
Why this is correct
Serial port 1 displays boot and startup script logs.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse checking instance metadata (which stores the script) with viewing execution logs (serial port output), or they assume RDP/SSH is available when the script failure may prevent those services from starting.
Trap categories for this question
Command / output trap
Metadata contains the script but not its execution output.
Detailed technical explanation
How to think about this question
Serial port 1 output is a low-level, out-of-band console that works even when the instance is unresponsive or has network issues, as it streams data directly from the hypervisor. The startup script runs as a systemd service (google-startup-scripts) on Linux, and its output is captured in the serial console logs, which can be viewed via the gcloud compute instances get-serial-port-output command or the Cloud Console. In real-world scenarios, this is invaluable for diagnosing scripts that fail due to missing dependencies, permission errors, or environment variables not being set.
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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this ACE question in full detail.
Ensuring successful operation of a cloud solution — This question tests Ensuring successful operation of a cloud solution — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Review the serial port 1 output in the Google Cloud console. — Serial port 1 output in the Google Cloud console captures the instance's serial console logs, including startup script execution output and any errors. This is the first and most direct step to debug a failing startup script because it shows the script's stdout, stderr, and any system messages during boot, without requiring network access or additional tools.
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.
Are there clue words in this question I should notice?
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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