ITPEC FE Morning April 2018 Question 76

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

Green IT has two sides. Green of IT makes IT equipment itself use less energy (efficient data centres, low-power devices, virtualisation). Green by IT uses IT to reduce the environmental load of work outside IT. Replacing trips with web conferences removes the fuel and CO₂ of the travel, so it is Green by IT.

Answer (d)

Why not others:

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

Key rule: Green of IT makes the IT itself greener; Green by IT uses IT to reduce the environmental load of the work it replaces, such as travel, paper or transport.

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