Which action is NOT typically part of a profiling and optimization process?

• A. Reproduce issue
• B. Use profiling tools to identify hotspots
• C. Optimize algorithms
• D. Immediately deploy a new feature without profiling

Answer: (D)

Profiling and optimization focus on identifying bottlenecks in existing code and making targeted improvements. To tackle performance issues, you typically start by reproducing the issue to confirm it occurs and to understand the scenario. Then you use profiling tools to measure where time or resources are spent and to locate hotspots. After that, you optimize the chosen areas, such as refining algorithms or implementing more efficient approaches to reduce time or space complexity. Deploying a new feature immediately without profiling isn’t part of this process; it bypasses the careful measurement and improvement steps and can introduce unmeasured performance problems.