20+ practice questions focused on Software Development Concepts — one of the most tested topics on the CompTIA Tech+ (FC0-U71) exam. Each question includes a detailed explanation so you learn why the right answer is correct.
Start Software Development Concepts PracticeA developer is debugging a program that produces incorrect output. The developer sets a breakpoint on a specific line of code and runs the program in a debugger. When execution stops at the breakpoint, the developer examines the values of variables at that point. What debugging technique is being used?
Explanation: Setting a breakpoint and examining variable values when execution pauses is the definition of step-through execution (also called breakpoint debugging), where the developer controls execution flow and inspects state at specific points. This interactive technique is distinct from passive methods like logging or static review.
A software team is adopting agile practices. They want to ensure they incorporate feedback early and often. Which TWO of the following are key events in the Scrum framework that provide opportunities for feedback and inspection?
Explanation: The Sprint retrospective (A) is a key Scrum event held at the end of each Sprint where the team inspects its own processes and practices and identifies improvements, providing direct feedback on how the team works. The Sprint review (B) is also a key Scrum event where the team demonstrates the Increment to stakeholders and collects feedback on the product, enabling inspection and adaptation of the Product Backlog. Both are formally defined Scrum events specifically designed for inspection and adaptation. The daily scrum (C) is a short daily synchronization event for the Developers, not primarily a stakeholder feedback opportunity. Product backlog grooming (D) is a refinement activity, not one of the official Scrum events. Sprint planning (E) is a Scrum event, but it focuses on defining the Sprint Goal and selecting work, not on gathering feedback from completed work.
A development team is working on a critical update to an e-commerce website. After deploying the update, they must ensure that existing features (like login and search) still work correctly. Additionally, they want to test the new checkout flow end-to-end. Which TWO types of testing should the team perform?
Explanation: Regression testing (C) is correct because it verifies that existing features like login and search still work after deploying the update, ensuring no new defects were introduced. System testing (D) is correct because it validates the entire integrated system, including the new checkout flow end-to-end, against the specified requirements.
A software testing team is planning to verify a new e-commerce application. Which THREE testing types should be performed to ensure comprehensive quality? (Select the three correct answers.)
Explanation: Integration testing (B) is correct because it verifies that the individually developed modules and interfaces of the e-commerce application communicate and exchange data correctly (e.g., checkout service calling the payment gateway API), which is essential for a multi-component system. Unit testing (C) is correct because it validates the smallest testable pieces of code, such as individual functions or classes, in isolation, catching defects early before they propagate into higher-level testing. System testing (E) is correct because it evaluates the fully integrated application end-to-end against its specified requirements, covering complete business flows like browsing, cart, checkout, and order confirmation in a production-like environment. Smoke testing (A) is not among the marked answers because it is a shallow build-verification technique rather than one of the three comprehensive quality-assurance levels, and alpha testing (D) is not marked because it is a user-acceptance activity performed by internal users at the developer's site, not a core functional testing type for verifying the application's quality.
A software development team follows a methodology where work is divided into fixed sequential phases: requirements, design, implementation, testing, deployment, and maintenance. Changes to requirements are difficult once a phase is completed. Which development methodology is being used?
Explanation: The Waterfall model is a linear sequential software development methodology where each phase (requirements, design, implementation, testing, deployment, maintenance) must be completed before the next begins. This rigidity makes it difficult to accommodate changes to requirements once a phase is finished, exactly as described in the question.
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Practice all Software Development Concepts questions1. Baseline your knowledge
Start with 10 questions to gauge your current understanding of Software Development Concepts. This tells you whether you need a concept refresher or just practice.
2. Review every explanation
For each question — right or wrong — read the full explanation. Understanding why an answer is correct is more valuable than knowing the answer itself.
3. Focus on exam traps
Software Development Concepts questions on the FC0-U71 frequently use trap wording. Look for subtle differences in answers that test your precision, not just general knowledge.
4. Reach 80% consistently
Do repeated sessions until you score 80%+ three times in a row. Then move to mixed-mode practice to test cross-topic recall under realistic conditions.
The exact number varies per candidate. Software Development Concepts is tested as part of the CompTIA Tech+ (FC0-U71) blueprint. Practicing with targeted Software Development Concepts questions ensures you can handle any format or difficulty that appears.
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