AZ-400 Design and implement source control Practice Question
This AZ-400 practice question tests your understanding of design and implement source control. 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.
Network Topology
Refer to the exhibit. A developer is working on the feature/login branch and wants to ensure that the latest changes from main are incorporated before creating a pull request. Which command should the developer run next?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "which command"
Why it matters: Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
Why wrong: There is no rebase in progress; this command would be invalid.
B
git merge main
Why wrong: While this would merge main again, it would create an extra merge commit. The developer already has a merge from main, but main has advanced. Rebasing is cleaner.
C
git push origin feature/login
Why wrong: Pushing will not incorporate the latest main changes; it will just push the current state.
D
git pull --rebase origin main
This fetches the latest main and rebases the feature branch onto it, incorporating the latest changes and keeping history linear.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
git pull --rebase origin main
The exhibit shows that the feature/login branch has a merge commit from main (3a1b2c3) which means main was already merged into feature/login. However, the local branch is ahead of origin by 1 commit (the merge commit). The developer wants to incorporate the latest changes from main. Since main has advanced (d4e5f6a is the latest on origin/main), the developer should pull the latest main and rebase or merge again. The best practice is to rebase onto the latest main to maintain a linear history. Therefore, the developer should run 'git pull --rebase origin main' to fetch and rebase.
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.
✗
git rebase --abort
Why it's wrong here
There is no rebase in progress; this command would be invalid.
✗
git merge main
Why it's wrong here
While this would merge main again, it would create an extra merge commit. The developer already has a merge from main, but main has advanced. Rebasing is cleaner.
✗
git push origin feature/login
Why it's wrong here
Pushing will not incorporate the latest main changes; it will just push the current state.
✓
git pull --rebase origin main
Why this is correct
This fetches the latest main and rebases the feature branch onto it, incorporating the latest changes and keeping history linear.
Clue confirmation
The clue word "which command" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Trap categories for this question
Command / output trap
There is no rebase in progress; this command would be invalid.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-400 question in full detail.
Identify which AZ-400 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Design and implement source control — This question tests Design and implement source control — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: git pull --rebase origin main — The exhibit shows that the feature/login branch has a merge commit from main (3a1b2c3) which means main was already merged into feature/login. However, the local branch is ahead of origin by 1 commit (the merge commit). The developer wants to incorporate the latest changes from main. Since main has advanced (d4e5f6a is the latest on origin/main), the developer should pull the latest main and rebase or merge again. The best practice is to rebase onto the latest main to maintain a linear history. Therefore, the developer should run 'git pull --rebase origin main' to fetch and rebase.
What should I do if I get this AZ-400 question wrong?
Identify which AZ-400 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Are there clue words in this question I should notice?
Yes — watch for: "which command". Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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