Quick Answer
The correct answer is blue/green deployment because it minimizes downtime by provisioning a separate green environment alongside the existing blue environment, then shifting traffic only after the new version passes health checks, which also enables instant rollback by simply redirecting traffic back to the blue environment. This approach directly addresses the need for minimal downtime and quick recovery, as in-place updates would cause service interruption during the deployment process. On the AWS Certified DevOps Engineer Professional DOP-C02 exam, this question tests your understanding of deployment strategies and their trade-offs; a common trap is confusing canary or linear deployments as the full blue/green strategy, but those are traffic-shifting patterns within blue/green, not the complete method. Remember the memory tip: blue/green is like having a spare tire—you swap to the new one, and if it goes flat, you instantly put the old one back on.
This DOP-C02 practice question tests your understanding of resilient cloud solutions. 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 uses AWS CodeDeploy to deploy a new version of an application to EC2 instances. They want to minimize downtime and roll back quickly if the deployment fails. Which deployment type should they use?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "minimum / minimize"
Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
Canary deployment
Why wrong: Canary is a type of blue/green but not the full answer.
Linear deployment
Why wrong: Linear is a traffic shifting pattern, not a deployment type.
Blue/green deployment
Blue/green allows instant rollback by switching back.
In-place deployment
Why wrong: In-place can cause downtime and rollback is slower.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Blue/green deployment
Blue/green deployment creates a new environment (green) and shifts traffic after testing, allowing instant rollback by switching back to the original (blue). Option A is wrong because in-place updates cause downtime during the deployment. Option C is wrong because canary is a subset of blue/green but not the full strategy. Option D is wrong because linear is a traffic shifting pattern.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Canary deployment
Why it's wrong here
Canary is a type of blue/green but not the full answer.
Linear deployment
Why it's wrong here
Linear is a traffic shifting pattern, not a deployment type.
Blue/green deployment
Why this is correct
Blue/green allows instant rollback by switching back.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
In-place deployment
Why it's wrong here
In-place can cause downtime and rollback is slower.
Common exam traps
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
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. NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated. 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
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related DOP-C02 NAT questions on configuration and troubleshooting.
Resilient Cloud Solutions — study guide chapter
Learn the concepts, then practise the questions
Resilient Cloud Solutions practice questions
Targeted practice on this topic area only
All DOP-C02 questions
1,740 questions across all exam domains
AWS Certified DevOps Engineer Professional DOP-C02 study guide
Full concept coverage aligned to exam objectives
DOP-C02 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise DOP-C02 questions linked to Configuration Management and IaC.
Practise DOP-C02 questions linked to Resilient Cloud Solutions.
Practise DOP-C02 questions linked to Monitoring and Logging.
Practise DOP-C02 questions linked to Incident and Event Response.
Practise DOP-C02 questions linked to Security and Compliance.
Practise DOP-C02 questions linked to SDLC Automation.
Practise DOP-C02 questions linked to DOP-C02 fundamentals.
Practise DOP-C02 questions linked to DOP-C02 scenario.
Practise DOP-C02 questions linked to DOP-C02 troubleshooting.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Resilient Cloud Solutions — This question tests Resilient Cloud Solutions — Static NAT maps one inside address to one outside address..
The correct answer is: Blue/green deployment — Blue/green deployment creates a new environment (green) and shifts traffic after testing, allowing instant rollback by switching back to the original (blue). Option A is wrong because in-place updates cause downtime during the deployment. Option C is wrong because canary is a subset of blue/green but not the full strategy. Option D is wrong because linear is a traffic shifting pattern.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related DOP-C02 NAT questions on configuration and troubleshooting.
Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
Static NAT maps one inside address to one outside address.
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 →
Same concept, more angles
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A DevOps team uses AWS CodePipeline to deploy a web application. The pipeline has a deploy stage that uses CodeDeploy to deploy to an Auto Scaling group. During deployment, the new instances fail health checks and the deployment rolls back. However, the rollback also fails because the old instances have been terminated. What should the team do to avoid this issue?
mediumWhy D: Option B is correct because using a blue/green deployment with CodeDeploy allows the old instances to remain until the new ones are verified healthy. Option A is wrong because increasing the health check grace period does not help if instances are unhealthy. Option C is wrong because manual approval does not prevent the rollback failure. Option D is wrong because creating a new Auto Scaling group does not inherently solve the termination issue.
Keep practising
Last reviewed: Jun 20, 2026
This DOP-C02 practice question is part of Courseiva's free Amazon Web Services 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 DOP-C02 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.