ITPEC FE Morning October 2021 Question 76

Using web conferencing instead of travelling to meetings — Green IT uses IT to cut energy use and environmental load.

Green IT has two sides: making IT equipment itself use less energy (efficient data centres, low-power devices, virtualisation), and using IT to reduce the environmental load of other activities. Replacing trips with web conferences removes the fuel and CO₂ of the travel, so it is the second kind.

Answer (d)

Why not others:

• •(a) — a more powerful in-house data centre raises power consumption, and nothing in it reduces environmental load
• •(b) — efficient in-house software is a development productivity goal with no environmental aim stated
• •(c) — a desktop PC draws more power than a thin client laptop, so the swap goes the wrong way

Key rule: Something is Green IT only if it reduces energy use or environmental load, either of the IT itself or of the work that IT replaces.

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