This AZ-400 practice question tests your understanding of design and implement a source control strategy. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 developer runs 'git log --oneline --graph --decorate' and sees the output. Which Git workflow does this history most closely represent?
GitLab Flow
Why wrong: GitLab Flow uses environment branches.
Trunk-based development
Why wrong: Trunk-based encourages linear history.
GitHub Flow
Why wrong: GitHub Flow often uses squash merges.
Git Flow
Git Flow uses feature branches with merge commits.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Git Flow
The output of `git log --oneline --graph --decorate` shows multiple long-lived branches (e.g., `develop`, `feature/*`, `release/*`, `hotfix/*`) with periodic merges back to `develop` and `main`. This branching structure with dedicated branches for features, releases, and hotfixes is the hallmark of Git Flow, which uses a strict branching model to manage releases and maintenance in parallel.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
GitLab Flow
Why it's wrong here
GitLab Flow uses environment branches.
Trunk-based development
Why it's wrong here
Trunk-based encourages linear history.
GitHub Flow
Why it's wrong here
GitHub Flow often uses squash merges.
Git Flow
Why this is correct
Git Flow uses feature branches with merge commits.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
The trap here is that candidates see a graph with multiple branches and assume it represents GitHub Flow or trunk-based development, but the presence of both `develop` and `release` branches specifically indicates Git Flow, not simpler workflows.
Detailed technical explanation
Git Flow, introduced by Vincent Driessen, relies on a `develop` branch as the integration branch for features, while `release` branches are created from `develop` to stabilize a release candidate. Hotfix branches branch from `main` and are merged back into both `main` and `develop` to ensure fixes are propagated. This model is ideal for projects with scheduled releases but can introduce merge overhead in continuous delivery pipelines.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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. 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
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FAQ
Design and implement a source control strategy — This question tests Design and implement a source control strategy — Read the scenario before looking for a memorised answer..
The correct answer is: Git Flow — The output of `git log --oneline --graph --decorate` shows multiple long-lived branches (e.g., `develop`, `feature/*`, `release/*`, `hotfix/*`) with periodic merges back to `develop` and `main`. This branching structure with dedicated branches for features, releases, and hotfixes is the hallmark of Git Flow, which uses a strict branching model to manage releases and maintenance in parallel.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 25, 2026
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