The correct answer is to optimize the Java application to start within 10 minutes and use startup CPU boost. This is the best deployment approach because Cloud Run enforces a hard maximum container startup timeout of 600 seconds, and the startup CPU boost feature temporarily allocates additional vCPUs during the initialization phase, dramatically reducing cold start latency for resource-heavy applications like a monolithic Java migration. On the Google Professional Cloud Developer exam, this scenario tests your understanding of Cloud Run’s startup lifecycle and the distinction between request timeout and container startup timeout—a common trap is confusing the two or assuming you can set a startup timeout beyond 10 minutes. The key insight is that you must fit initialization within the platform’s limit, then leverage CPU boost to accelerate that window. Memory tip: think “600 seconds to start, boost to dart.”
PCD Deploying applications Practice Question
This PCD practice question tests your understanding of deploying applications. 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 company is migrating a monolithic Java application to Cloud Run. The application takes 10 minutes to start. What is the best deployment approach?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Optimize the Java application to start within 10 minutes and use startup CPU boost.
Option C is correct because Cloud Run allows a maximum container startup time of 10 minutes (600 seconds) by default, and the startup CPU boost feature temporarily allocates additional CPU during startup to accelerate initialization. By optimizing the application to start within this limit and enabling startup CPU boost, the company can directly address the cold start issue without changing the deployment platform or architecture.
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.
✗
Migrate to App Engine Flexible Environment.
Why it's wrong here
App Engine Flex also has startup limits and may not be a direct solution.
✗
Use a custom runtime with a cold start optimization.
Why it's wrong here
Custom runtimes are not supported on Cloud Run.
✓
Optimize the Java application to start within 10 minutes and use startup CPU boost.
Why this is correct
Cloud Run allows up to 10 minutes for startup; CPU boost helps.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Increase the memory limit to 4 GB.
Why it's wrong here
Memory helps but startup time may still exceed 10 minutes.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that increasing memory or changing platforms can fix startup time issues, when the real solution is to optimize the application startup within the platform's constraints and use built-in features like startup CPU boost.
Detailed technical explanation
How to think about this question
Cloud Run's startup CPU boost is a feature that temporarily increases the CPU allocation (up to the maximum allowed) during the container's startup phase, which can significantly reduce initialization time for Java applications that perform heavy class loading or JIT compilation. Under the hood, Cloud Run measures startup time from when the container starts until the first request is served, and if the container fails to respond within the 10-minute timeout, it is terminated. In real-world scenarios, Java applications with large frameworks (e.g., Spring Boot) often benefit from this boost, but the application must still be optimized to complete initialization within the timeout.
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
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.
Deploying applications — This question tests Deploying applications — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Optimize the Java application to start within 10 minutes and use startup CPU boost. — Option C is correct because Cloud Run allows a maximum container startup time of 10 minutes (600 seconds) by default, and the startup CPU boost feature temporarily allocates additional CPU during startup to accelerate initialization. By optimizing the application to start within this limit and enabling startup CPU boost, the company can directly address the cold start issue without changing the deployment platform or architecture.
What should I do if I get this PCD 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: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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