- A
Store the AWS CLI command in the buildspec file or as a separate script in the source repository.
The deploy stage must have the command to execute.
- B
Grant the CodePipeline service role permission to pass the CodeBuild IAM role to CodeBuild.
CodePipeline must be able to pass the role to CodeBuild for it to assume.
- C
Configure a CloudWatch Events rule to trigger the pipeline when the Lambda function is updated.
Why wrong: This is for triggering pipelines, not for the deploy stage itself.
- D
Create an IAM role for CodeBuild that includes permissions to invoke 'lambda:UpdateFunctionCode'.
CodeBuild needs permissions to run the AWS CLI command to update Lambda.
- E
Use AWS CodeDeploy instead of the AWS CLI to update the Lambda function.
Why wrong: The question uses CLI; CodeDeploy is not required.
DOP-C02 SDLC Automation Practice Question
This DOP-C02 practice question tests your understanding of sdlc automation. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 DevOps engineer is setting up a CI/CD pipeline for a Python application using AWS CodePipeline. The pipeline includes a build stage with CodeBuild and a deploy stage that runs an AWS CLI command to update a Lambda function. Which THREE steps are necessary to ensure the pipeline can update the Lambda function? (Choose 3)
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
Store the AWS CLI command in the buildspec file or as a separate script in the source repository.
Option A is correct because the AWS CLI command to update the Lambda function must be defined in the buildspec file or as a script in the source repository so that CodeBuild can execute it during the deploy stage. This ensures the pipeline has the exact command to run, and it becomes part of the version-controlled build specification.
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.
- ✓
Store the AWS CLI command in the buildspec file or as a separate script in the source repository.
Why this is correct
The deploy stage must have the command to execute.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Grant the CodePipeline service role permission to pass the CodeBuild IAM role to CodeBuild.
Why this is correct
CodePipeline must be able to pass the role to CodeBuild for it to assume.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Configure a CloudWatch Events rule to trigger the pipeline when the Lambda function is updated.
Why it's wrong here
This is for triggering pipelines, not for the deploy stage itself.
- ✓
Create an IAM role for CodeBuild that includes permissions to invoke 'lambda:UpdateFunctionCode'.
Why this is correct
CodeBuild needs permissions to run the AWS CLI command to update Lambda.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use AWS CodeDeploy instead of the AWS CLI to update the Lambda function.
Why it's wrong here
The question uses CLI; CodeDeploy is not required.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates might think a CloudWatch Events trigger is needed to initiate the update, but the pipeline itself is the orchestrator; the real requirement is proper IAM permissions and command definition within the buildspec.
Detailed technical explanation
How to think about this question
Under the hood, the CodeBuild service assumes the IAM role specified in the project configuration to execute build commands. The 'lambda:UpdateFunctionCode' permission must be attached to that role, and the CodePipeline service role must have 'iam:PassRole' permission to pass the CodeBuild role to the build project. This ensures secure delegation of permissions without hardcoding credentials.
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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
Quick reference
Cloud Service Model Comparison
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
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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FAQ
Questions learners often ask
What does this DOP-C02 question test?
SDLC Automation — This question tests SDLC Automation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Store the AWS CLI command in the buildspec file or as a separate script in the source repository. — Option A is correct because the AWS CLI command to update the Lambda function must be defined in the buildspec file or as a script in the source repository so that CodeBuild can execute it during the deploy stage. This ensures the pipeline has the exact command to run, and it becomes part of the version-controlled build specification.
What should I do if I get this DOP-C02 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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Last reviewed: Jul 4, 2026
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