Which of the following best defines Green Coding?

Question

Options

• AWriting applications that create less emissions.
• BWriting applications that use less power.
• CWriting applications that use less of the CPU.
• DWriting applications that require less upgrading.

• A
  2% (1)
• B
  7% (4)
• C
  90% (55)
• D
  2% (1)

Explanation

Option C is correct because Green Coding specifically refers to writing efficient code that minimizes CPU (and by extension, hardware resource) utilization - this is the direct lever a developer controls at the code level. By reducing CPU cycles needed to execute a task, you reduce the computational work the hardware must perform.

Why the distractors are wrong:

• A (less emissions) - Reducing emissions is the environmental outcome of green coding, not the definition of the practice itself. It's too downstream.
• B (less power) - Lower power consumption is a result of efficient CPU usage, not the coding practice directly. Power management also involves hardware and infrastructure, not just code.
• D (less upgrading) - Software longevity/maintainability is related to software quality, not environmental efficiency. This conflates green coding with sustainable software maintenance.

Memory tip: Think of the developer's direct control - you write code that runs on the CPU. Green Coding = optimizing what you can directly touch (CPU cycles). Emissions and power are effects that happen outside your editor; CPU efficiency happens inside it.

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