This FC0-U61 practice question tests your understanding of software development concepts. 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.
A development team is using version control for their project. They need to isolate a new feature from the main codebase until it is complete. Which version control operation should they perform?
Merge
Why wrong: Merging combines changes from different branches, not isolates them.
Commit
Why wrong: Committing saves changes locally but does not isolate a feature.
Branch
Branching creates a separate workspace for developing a feature independently.
Push
Why wrong: Pushing uploads commits to a remote repository but does not isolate a feature.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Branch
Branching creates a separate line of development within a version control system (e.g., Git, Mercurial), allowing the team to work on a new feature in isolation without affecting the main codebase (often called 'main' or 'master'). Once the feature is complete and tested, the branch can be merged back. This directly addresses the requirement to isolate work until it is finished.
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.
Merge
Why it's wrong here
Merging combines changes from different branches, not isolates them.
Commit
Why it's wrong here
Committing saves changes locally but does not isolate a feature.
Branch
Why this is correct
Branching creates a separate workspace for developing a feature independently.
Related concept
Read the scenario before looking for a memorised answer.
Push
Why it's wrong here
Pushing uploads commits to a remote repository but does not isolate a feature.
Common exam traps
CompTIA often tests the misconception that 'commit' or 'push' can isolate work, but these operations only record or share changes; they do not create a separate development path, which is the core purpose of a branch.
Detailed technical explanation
In Git, a branch is a lightweight movable pointer to a specific commit. When you create a branch, Git does not duplicate the entire repository; it only creates a new pointer, making branching extremely fast and cheap. This allows developers to maintain multiple parallel streams of work (e.g., feature branches, hotfix branches) without interfering with each other, and the isolation is enforced until a merge or rebase is explicitly performed.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the FC0-U61 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
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
Software Development Concepts — This question tests Software Development Concepts — Read the scenario before looking for a memorised answer..
The correct answer is: Branch — Branching creates a separate line of development within a version control system (e.g., Git, Mercurial), allowing the team to work on a new feature in isolation without affecting the main codebase (often called 'main' or 'master'). Once the feature is complete and tested, the branch can be merged back. This directly addresses the requirement to isolate work until it is finished.
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 30, 2026
This FC0-U61 practice question is part of Courseiva's free CompTIA 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 FC0-U61 exam.
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