Google PCA Practice Question: Analyze and optimize technical and business processes
This PCA practice question tests your understanding of analyze and optimize technical and business processes. 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 company is migrating a legacy monolithic application to Google Cloud. They want to adopt microservices and improve deployment frequency. Which THREE practices should they adopt? (Choose 3.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use Infrastructure as Code (IaC) with Terraform.
Option A is correct because Infrastructure as Code (IaC) with Terraform enables declarative, version-controlled provisioning of cloud resources. This supports the microservices migration by allowing teams to spin up consistent, repeatable environments for each service, which is essential for increasing deployment frequency without manual configuration errors.
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.
✓
Use Infrastructure as Code (IaC) with Terraform.
Why this is correct
IaC enables rapid provisioning of environments, increasing deployment frequency.
Related concept
Read the scenario before looking for a memorised answer.
✗
Build a single deployment pipeline for all services.
Why it's wrong here
A single pipeline creates bottlenecks and reduces release frequency.
✗
Implement blue/green deployments.
Why it's wrong here
Blue/green deployments are useful but not directly focused on improving deployment frequency; they provide safe rollouts.
Read the scenario before looking for a memorised answer.
✓
Apply immutable infrastructure principles.
Why this is correct
Immutable infrastructure ensures consistent environments and faster deployments.
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 often confuse 'blue/green deployments' with 'canary releases' and assume both are equally valid, but the question specifically asks for three practices that improve deployment frequency, and canary releases with traffic splitting directly enable faster, safer rollouts, whereas blue/green is a broader strategy that may not inherently increase frequency.
Detailed technical explanation
How to think about this question
Immutable infrastructure (Option E) means that servers are never updated in-place; instead, a new instance is created from a golden image and the old one is destroyed. This eliminates configuration drift and ensures every deployment is identical, which is critical for microservices where rapid, reliable rollouts depend on deterministic environments. Canary releases (Option D) use traffic splitting (e.g., via Google Cloud Load Balancer or Service Mesh) to route a small percentage of users to the new version, allowing real-time monitoring before full rollout, reducing blast radius.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this PCA question in full detail.
Analyze and optimize technical and business processes — This question tests Analyze and optimize technical and business processes — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use Infrastructure as Code (IaC) with Terraform. — Option A is correct because Infrastructure as Code (IaC) with Terraform enables declarative, version-controlled provisioning of cloud resources. This supports the microservices migration by allowing teams to spin up consistent, repeatable environments for each service, which is essential for increasing deployment frequency without manual configuration errors.
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.
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Question Discussion
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