The answer is that the user has not generated a Git credential for CodeCommit in the IAM console. Even with a wildcard `codecommit:*` policy, CodeCommit requires a separate authentication step for Git operations over HTTPS—a static username and password pair generated specifically in the IAM console under the user’s security credentials. Without this credential, the Git client cannot authenticate, resulting in a “not authorized” failure despite the permissive IAM policy. On the AWS Certified DevOps Engineer Professional DOP-C02 exam, this question tests your understanding that IAM policies authorize API actions, but Git credentials or SSH keys handle transport-layer authentication for Git commands. A common trap is assuming a broad IAM policy alone covers Git pushes; it does not. Remember: IAM policy for API, Git credential for push.
DOP-C02 SDLC Automation Practice Question
This DOP-C02 practice question tests your understanding of sdlc automation. 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.
Refer to the exhibit. A CloudTrail log shows a failed GitPush event to a CodeCommit repository by the IAM user 'jenkins'. The DevOps engineer has attached the following IAM policy to the user:
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The user has not generated a Git credential for CodeCommit in the IAM console.
Option C is correct because CodeCommit requires an inline policy or managed policy to allow Git operations, but the user may be trying to push using HTTPS with a Git credential that is not associated with the IAM user, or the SSH key is not configured. However, the error says the user is not authorized, which suggests that the IAM policy is not effective because CodeCommit requires a specific Git credentials or SSH key to authenticate, not just an IAM policy. Actually, the IAM policy should allow the action. The most common issue is that the user has not created a Git credential in IAM for CodeCommit. Option A is about permissions boundary. Option B is about IP restriction. Option D is about HTTPS vs SSH.
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
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
The user has not generated a Git credential for CodeCommit in the IAM console.
Why this is correct
CodeCommit requires Git credentials or SSH key for Git operations, even if IAM policy allows.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
✗
The user is trying to push via HTTPS but the repository only allows SSH.
The user's IAM policy includes a condition that restricts access based on source IP, and the push originates from a different IP.
Why it's wrong here
The policy has no condition.
✗
The policy is attached but the user has a permissions boundary that denies codecommit:GitPush.
Why it's wrong here
No evidence of permissions boundary.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
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
How to think about this question
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.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
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
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.
What to study next
Got this wrong? Here's your next step.
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.
SDLC Automation — This question tests SDLC Automation — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: The user has not generated a Git credential for CodeCommit in the IAM console. — Option C is correct because CodeCommit requires an inline policy or managed policy to allow Git operations, but the user may be trying to push using HTTPS with a Git credential that is not associated with the IAM user, or the SSH key is not configured. However, the error says the user is not authorized, which suggests that the IAM policy is not effective because CodeCommit requires a specific Git credentials or SSH key to authenticate, not just an IAM policy. Actually, the IAM policy should allow the action. The most common issue is that the user has not created a Git credential in IAM for CodeCommit. Option A is about permissions boundary. Option B is about IP restriction. Option D is about HTTPS vs SSH.
What should I do if I get this DOP-C02 question wrong?
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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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