- A
Blue/green
Why wrong: Blue/green swaps all traffic at once, not gradually.
- B
Rollback
Why wrong: Rollback is a recovery action, not a deployment strategy.
- C
Canary
Canary deploys a small percentage first, then increases based on metrics and approval.
- D
Standard
Why wrong: Standard rolls out all at once via a rolling update.
Question 992 of 1,000
PCDE Practice Question: Building and Implementing CI/CD Pipelines for a Service
This PCDE practice question tests your understanding of building and implementing ci/cd pipelines for a service. 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.
An engineer configures Cloud Deploy to promote a container to production after manual approval. The deployment strategy must gradually shift traffic from the current version to the new version while monitoring error rates. Which deployment strategy should they select in the delivery pipeline?
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
✓
Canary
Canary deployment is the correct choice because it gradually shifts traffic from the current version to the new version while allowing monitoring of error rates. In Cloud Deploy, a canary strategy uses a sequence of phases (e.g., 10%, 50%, 100%) to incrementally route traffic, enabling real-time observability and automated rollback if error thresholds are breached.
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.
- ✗
Blue/green
Why it's wrong here
Blue/green swaps all traffic at once, not gradually.
- ✗
Rollback
Why it's wrong here
Rollback is a recovery action, not a deployment strategy.
- ✓
Canary
Why this is correct
Canary deploys a small percentage first, then increases based on metrics and approval.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Standard
Why it's wrong here
Standard rolls out all at once via a rolling update.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between deployment strategies by making candidates confuse canary (gradual traffic shifting with monitoring) with blue/green (instantaneous full traffic switch), so the trap here is assuming blue/green supports gradual traffic shifting when it actually flips all traffic at once.
Detailed technical explanation
How to think about this question
Cloud Deploy implements canary deployments using a delivery pipeline with a 'canary' strategy that defines a sequence of phases, each specifying a percentage of traffic to route to the new version (e.g., via Kubernetes Service mesh or load balancer). The pipeline can be configured with a 'canaryDeployment' field in the Skaffold config, and error rate monitoring is typically integrated via Cloud Monitoring or Prometheus metrics, triggering an automated rollback if the error rate exceeds a defined threshold (e.g., 5% increase). In real-world scenarios, this is critical for high-traffic services where a full rollout could cause widespread outages, and the gradual shift allows for early detection of regressions.
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.
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Building and Implementing CI/CD Pipelines for a Service — study guide chapter
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FAQ
Questions learners often ask
What does this PCDE question test?
Building and Implementing CI/CD Pipelines for a Service — This question tests Building and Implementing CI/CD Pipelines for a Service — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Canary — Canary deployment is the correct choice because it gradually shifts traffic from the current version to the new version while allowing monitoring of error rates. In Cloud Deploy, a canary strategy uses a sequence of phases (e.g., 10%, 50%, 100%) to incrementally route traffic, enabling real-time observability and automated rollback if error thresholds are breached.
What should I do if I get this PCDE 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
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Last reviewed: Jul 4, 2026
This PCDE 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 PCDE exam.
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