Site Reliability Engineering (SRE) CT-QDO Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   A development team wants to release a new feature that requires a database migration. The SRE team has set an error budget of 0.1% for the service. The team has already consumed 0.08% of the error budget this month. What should the team do to align with SRE principles?

   • ARequest a new error budget from management, as the current one is too restrictive
   • BProceed with the release, as there is still some error budget remaining, but monitor closely and be prepared to roll back if the budget is exhausted
   • CCancel the release and focus on improving reliability to increase the error budget
   • DDelay the release until the next month when the error budget resets, to avoid any risk of exceeding the budget
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2. 7foundation · easy

   What is an error budget in SRE?

   • AThe number of errors a system is allowed to have before a major incident is declared
   • BThe amount of unreliability a service can tolerate over a period, based on its SLO
   • CThe total number of bugs that a development team is allowed to introduce in a release
   • DThe maximum amount of money a company can spend on fixing production errors
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4. 8application · medium

   A company has a service with an SLO of 99.9% availability. They are considering adding a new feature that will increase the complexity of the system. The SRE team is concerned about the impact on reliability. What should they do to evaluate the impact?

   • AConduct a capacity planning exercise to ensure the system can handle the new feature
   • BUse the error budget to decide if the feature can be released, and monitor the SLI after release
   • CAsk the development team to guarantee the feature will not cause any downtime
   • DDelay the feature until the next quarter to allow more time for testing
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5. 9application · medium

   An SRE team is responsible for a service that has an SLO of 99.9% availability. They have set up monitoring that alerts on any error rate above 0.1%. During a recent incident, the error rate spiked to 5% for 10 minutes. The team wants to improve their incident response. What should they do first?

   • AImmediately roll back all recent changes, even if they are unrelated to the incident
   • BDisable the monitoring alerts until the incident is resolved to avoid noise
   • CConduct a post-incident review to identify the root cause and implement preventive measures
   • DIncrease the alert threshold to 10% to reduce false alarms
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6. 10foundation · easy

   How does SRE differ from DevOps in terms of implementation?

   • ASRE is only applicable to large enterprises, while DevOps is for small teams
   • BSRE provides a specific set of practices and roles, while DevOps is a broader cultural philosophy
   • CSRE is a set of cultural principles, while DevOps is a specific job role
   • DSRE focuses on software development, while DevOps focuses on operations
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