Title: Self-test Quiz: Section 1.2
Course: ICT Sustainability

Q: The direct carbon footprint of the ICT sector is dominated by ___________ consumption, so an obvious way to reduce emissions is to use as much of it as possible from renewable sources.
A: electricity
Feedback: What are some examples of renewable sources?

Q: Most of the energy used by data centres goes to __________ and ____________
- power systems
- high-end servers
- volume servers
- cooling systems
- storage systems
A: volume servers; cooling systems

Q: Data centres are responsible for more energy use than PCs, printers, or mobile phones.
- True
- False
A: True

Q: Match the following terms with the best definition:
- An estimate of the amount of CO_2e emitted by an activity. | carbon footprint
- The energy used to manufacture a product or service and to supply it to the point of use. | embodied energy/embodied carbon
- A measure of the energy used to operate ICT equipment, measured in kilowatt hours (kWh). A greenhouse gas conversion factor can then be used to convert energy consumed in kWh to kg of equivalent carbon dioxide. | operating energy

Q: What will be the equivalent carbon dioxide (to the nearest Kg CO_2) from a computer which uses {power} W of power for {hours} hours, where the energy is generated with a conversion factor of {factor} Kg CO2/kWh?
A: {power} * {hours} * {factor} / 1000 (formula; values not in the backup's text)
  Hint: Did you divide by 1,000 to covert Watt ro Kilowatt? Equivalent carbon dioxide (in Kg CO_2) is calculated by multiplying power (in Kilowatt) by hours and the conversion factor (in Kg CO2/kWh). See "Sustainability Assessment".

Q: The fastest growing carbon footprint is that of
- telecoms
- mobile networks
- personal computers and laptops
- data centres
- online gaming
A: data centres