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Answer: Increase the service's deployment velocity and/or risk., Shift engineering time to other services that need more reliability.
The scenario describes a service that has consistently met its SLO for six months, with high customer satisfaction and strong automation. SRE best practices emphasize optimizing the balance between reliability and deployment velocity. Since the service is stable and exceeding reliability targets, it has 'error budget' (unused reliability margin) that can be leveraged. Option B (increase deployment velocity and/or risk) is correct because it uses this error budget to accelerate releases without compromising the SLO. Option C (shift engineering time to other services needing reliability) is also correct, as it reallocates resources to underperforming areas, improving overall system efficiency and avoiding over-investment in an already reliable service. Option A (make SLO stricter) would reduce the error budget unnecessarily, hindering velocity. Option D (prioritize reliability over new features) ignores the current stability and would slow innovation. Option E (change SLIs for more coverage) is redundant since the SLO is already being met and customer satisfaction is high.
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You manage a service that has consistently met its Service Level Objective (SLO) and maintained high customer satisfaction over the past six months. Most operational tasks are automated, with minimal recurring manual work. To optimize the trade-off between reliability and deployment speed while adhering to SRE best practices, what actions should you take? (Select two.)
A
Make the service's SLO more strict.
B
Increase the service's deployment velocity and/or risk.
C
Shift engineering time to other services that need more reliability.
D
Get the product team to prioritize reliability work over new features.
E
Change the implementation of your Service Level Indicators (SLIs) to increase coverage.