グリーンITの考え方に基づく取組みの事例として, 適切なものはどれか。
平成26年度 秋期 ITパスポート試験 問20
This question's explanation and your answers so far.
問 20
Incorrectア
Using a display that reduces eye fatigue caused by blue light is a VDT (visual display terminal) work measure that takes the worker’s health and safety into account (occupational health and ergonomics). It reduces the burden on the user, but it does not cut power consumption or resource use, so it is not Green IT.
Incorrectイ
An air shower device blows off the dust clinging to people entering, so as to keep the server room clean. It is facility management aimed at preventing equipment failure and maintaining availability, not at reducing environmental impact. On the contrary, running the device consumes electricity.
Incorrectウ
Building a backup system to prepare for disasters is a measure for the business continuity plan (BCP) and for ensuring availability. Its purpose is to protect data; it has nothing to do with saving power or resources, and because the equipment is duplicated, resource and power consumption actually increases.
- エ
正解 Green IT is the idea of reducing environmental impact by making IT equipment more energy-efficient and using resources effectively, while at the same time using IT to reduce the environmental impact of society as a whole. The initiative in エ, “As a rule, restrict printing documents on paper and limit reading to viewing on a PC display,” cuts the consumption of paper as a resource, along with the toner, electricity, and waste that printing involves. In other words, it directly lowers resource consumption and environmental impact by using IT (going paperless), which makes it a typical example of Green IT.
- Green IT covers two sides at once: making IT equipment itself save power and resources (Green of IT), and using IT to lower society’s environmental impact (Green by IT). Typical examples include going paperless, consolidating servers through virtualization, and replacing equipment with energy-efficient models.
- Tell similar “good initiatives” apart by their purpose: health considerations are VDT work measures, dust prevention and cleanliness are facility management, and backups are for BCP and availability. Anything whose purpose is not reducing environmental impact is not Green IT.