Green Software for Practitioners (LFC131)

1. What is the net-zero global target?

• Eliminate 100% of emissions by 2050
• Eliminate 90% of emissions by 2050
• Eliminate 80% of emissions by 2050

2. What was the agreed preferred limit to the temperature rise in the Paris Climate Agreement?

• 1.5°C
• 2°C
• 2.5°C

3. What is the amortized carbon of a device with an embodied carbon of 1000kg CO2eq and a lifespan of 5 years?

• 200kg CO2eq/year
• 20kg CO2eq/year
• 200kg CO2eq

4. Which of the following scenarios is more challenging to measure using the GHG protocol?

• Closed-source software
• Open-source software
• Both A & B

5. What is static power draw?

• The carbon cost of applications being left on standby
• The electricity being drawn by an application in an idle state
• The electricity used by an application in eco mode

6. What does PUE (power usage effectiveness) measure?

• Data center energy efficiency
• Energy consumption of an application
• Amount of energy used in overheads combined with that consumed by servers

7. How does hardware efficiency affect the carbon pollution of a device?

• It eliminates it
• It increases it
• It reduces it

8. What is curtailment?

• Surplus energy supply
• Energy that is thrown away due to oversupply
• Reducing supply to match demand

9. What are the two key ways of being more efficient with hardware?

• Extending its lifespan and reducing its utilization
• Extending its lifespan and increasing its utilization
• Reducing its lifespan and increasing its utilization

10. Which application consumes the most energy?

• An application that consumes 10kWh in a data center with a PUE of 1.5
• An application that consumes 15kWh in a data center with a PUE of 1.2
• An application that consumes 20kWh in a data center with a PUE of 1

11. What does the acronym SCI stand for?

• Software Carbon Index
• Software Carbon Intensity
• Specific Carbon Intensity

12. What are the key things to consider before calculating your SCI score?

• What to include and the functional unit you will use
• What to include, the functional unit you will use and method of quantification
• What to include, the functional unit you will use, method of quantification and GHG score

13. What is demand shaping?

• Do more when carbon intensity is low, do less when carbon intensity is high
• Do more when carbon intensity is high, do less when carbon intensity is low
• Do more when costs are low, do less when costs are high

14. Which of the following statements is true?

• Short term changes in the weather indicate long term changes to the climate
• Long term climate changes affect short-term weather conditions

15. Which of the following is an example of carbon awareness?

• Creating a piece of software that produces very low emissions
• Canceling a process when you know carbon intensity is high
• Using cloud servers instead of in-house servers

16. What do we need greenhouse gases for?

• Capturing more heat from the Sun to sustain life on Earth
• Reflecting heat away from the Earth
• Nothing, they're always damaging

17. What is the minimum criteria for being carbon neutral?

• Emissions from scopes 1-3 must be offset by neutralizations or compensations
• Emissions from scopes 1 and 2 must be offset by neutralizations or compensations
• Emissions from scopes 1-2 and business travel from scope 3 must be offset by neutralizations or compensations

18. What is COP?

• Carbon Offsetting Project
• Conference on Pollution
• Conference of the Parties

19. Which of the following is NOT an example of carbon aware computing?

• Consuming more electricity when the carbon intensity is lower
• Switching to renewable energy
• Pausing production when carbon intensity is higher

20. Which measurement protocol or method incorporates offsets?

• GHG protocol
• SCI