- A
Cloud SQL Auth Proxy configuration
Correct. The proxy handles connection pooling efficiently.
- B
max_connections database flag
Correct. Limited max_connections can cause queuing and latency.
- C
Private IP assignment
Why wrong: IP type affects network path, not connection pooling.
- D
Database query insights
Why wrong: Query insights helps analyze query performance, not connection pooling.
- E
Database version
Why wrong: Version may affect features, but is not directly related to pooling configuration.
Question 647 of 1,000
Google PCA Manage and provision cloud infrastructure Practice Question
This PCA practice question tests your understanding of manage and provision cloud infrastructure. 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 has a Cloud SQL for PostgreSQL instance that is experiencing high latency. They suspect a connection pooling issue. Which TWO configurations should be checked? (Choose two.)
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
✓
Cloud SQL Auth Proxy configuration
The Cloud SQL Auth Proxy is a common source of connection pooling issues because it can become a bottleneck if not configured with enough connections or if its connection limit is reached. It acts as a local intermediary, and if it exhausts its available connections, it will queue or drop new requests, causing high latency. Checking its configuration (e.g., the `--max-connections` flag or the number of proxy instances) is essential to diagnose pooling problems.
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 SQL Auth Proxy configuration
Why this is correct
Correct. The proxy handles connection pooling efficiently.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
max_connections database flag
Why this is correct
Correct. Limited max_connections can cause queuing and latency.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Private IP assignment
Why it's wrong here
IP type affects network path, not connection pooling.
- ✗
Database query insights
Why it's wrong here
Query insights helps analyze query performance, not connection pooling.
- ✗
Database version
Why it's wrong here
Version may affect features, but is not directly related to pooling configuration.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse network latency causes (like Private IP assignment) with connection pooling misconfigurations. In Google Cloud, connection pooling issues are often related to the Cloud SQL Auth Proxy's connection limits and the database's max_connections flag, not networking or version issues.
Detailed technical explanation
How to think about this question
Connection pooling in Cloud SQL for PostgreSQL is often managed via external tools like PgBouncer or the Cloud SQL Auth Proxy, which maintains a pool of persistent connections to the database. The `max_connections` flag in PostgreSQL sets a hard limit on the total number of client connections; if this is set too low, even a well-tuned pool can cause connection waits and latency spikes. Under the hood, the Auth Proxy uses a connection pool that can be exhausted if the number of concurrent client connections exceeds the proxy's configured pool size, leading to queuing delays.
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.
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FAQ
Questions learners often ask
What does this PCA question test?
Manage and provision cloud infrastructure — This question tests Manage and provision cloud infrastructure — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Cloud SQL Auth Proxy configuration — The Cloud SQL Auth Proxy is a common source of connection pooling issues because it can become a bottleneck if not configured with enough connections or if its connection limit is reached. It acts as a local intermediary, and if it exhausts its available connections, it will queue or drop new requests, causing high latency. Checking its configuration (e.g., the `--max-connections` flag or the number of proxy instances) is essential to diagnose pooling problems.
What should I do if I get this PCA 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.
About these practice questions
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: Jul 4, 2026
This PCA 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 PCA exam.
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