FC0-U71 Software Development Concepts Practice Question
A developer is working on a new feature and creates a copy of the main codebase to work in isolation. Later, this copy is merged back into the main branch. Which version control concept describes this copy?
⚠ Common exam trap
FC0-U71 often tests the confusion between the isolated copy (branch) and the integration action (merge) or the review artifact (pull request), so candidates must map the scenario's 'copy used for isolated work' to branch.
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
✓
Branch
A branch is an independent line of development created from a point in the main codebase so a developer can work in isolation without affecting the main line. When the feature is complete, the branch is merged back into the main branch. This matches the scenario exactly: a copy of the codebase used for isolated work that is later integrated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Merge
Why it's wrong here
A merge integrates changes from one branch into another; it is the operation performed after development, not the isolated copy. It is tempting because the stem mentions merging back, but the copy created beforehand is the branch.
- ✓
Branch
Why this is correct
A branch is an independent line of development copied from the main codebase, letting the developer commit changes in isolation. Those commits are later merged back into the main branch, which is exactly the isolation-then-integration workflow described in the scenario.
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Commit
Why it's wrong here
A commit records a snapshot of staged changes within a repository, not a separate working copy of the codebase. It is tempting because commits are created on the branch and later merged, but the isolated copy itself is the branch.
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Pull request
Why it's wrong here
A pull request is a request to review and integrate committed changes, not the isolated copy itself. It is tempting because merging a branch back typically happens through a pull request, but the copy the developer works in is the branch.
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Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CompTIA exam blueprint
This FC0-U71 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-U71 exam.