Purpose of a Code Review in Software Development
What is the main purpose of a code review?
Community Votes
100% of anonymous learners picked answer A. Votes are pick records left by other test-takers — they are not the verified answer.
Community Insight
Code review is a collaborative, multi-dimensional activity: it catches not only logical errors but also style, security and maintainability problems. The team-review phrasing captures that breadth, whereas 'detect logical errors' is too narrow.
A code review exists so the team examines a change together to find errors, share knowledge and enforce standards before the code is merged. Identifying and reviewing errors with the team is the core objective, not merely detecting logic faults or giving a lead visibility.
Picking 'to detect logical errors' because bugs are the most visible review output; that ignores the teamwork, knowledge-sharing and standards-enforcement purposes the exam treats as the main goal.
Community Discussion (3 comments)
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Expert Analysis
Why the Answer Is Correct
A code review is performed by peers who read a change together before it is merged, so its main purpose is to identify and review errors with the team. That wording captures the full scope of the practice: defects and coding-standard violations are surfaced, questions are asked, knowledge transfers between authors and reviewers, and the codebase stays consistent. Treating the review as a team activity is what distinguishes it from a solitary lint or unit-test run.Why the Other Options Are Wrong
'To detect logical errors' narrows the purpose to a single defect class and ignores style, security, readability and knowledge-sharing, so it is too limited to be the main purpose. 'To ensure that all code is checked in simultaneously' describes a release or integration practice rather than a review goal, and simultaneous check-in is unrelated to reviewing quality. 'To provide the technical lead visibility into all code' describes a management side effect: visibility may result from reviews, but it is not their purpose and would not by itself justify reviewing every change.Community Comment Notes
Voters overwhelmingly chose the team-review option, and one comment explained that a review acknowledges the multifaceted nature of the process, covering collaboration, knowledge transfer and quality assurance rather than error detection alone. A dissenting comment preferred 'to detect logical errors', arguing that improving quality is the central aim, but reviewers noted this is only one facet of the team activity.Official Reference
Exam Strategy
When a question asks for the 'main purpose' of a code review, favour the option that combines errors with the team or collaboration; Cisco frames review as peer review with knowledge sharing, so single-dimension answers like 'logical errors' or 'lead visibility' are distractors.
Frequently Asked Questions
Is detecting logical errors the main purpose of a code review?
No. Detecting logical errors is one outcome, but the main purpose is the broader team effort of identifying and reviewing errors, sharing knowledge and enforcing coding standards.
What activities does a code review support besides finding bugs?
It spreads knowledge among team members, keeps the codebase consistent with coding standards, and surfaces design, security and maintainability concerns before the code is merged.
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