DevOps-SRE Free Practice Test

What metrics will embracing failure help to improve?

1. A. Mean time to detect and mean time between system incidents
2. B. Change lead time and change failure rate
3. C. Empirical test data and mean time to recover service
4. D. Mean time to detect and mean time to recover

Correct Answer: D

Which of the following BEST defines the golden signal for errors?

1. A. The time it takes to service successful as well as failed requests
2. B. The rate of failed requests—either explicitly, implicitly, or by policy
3. C. The demand placed on your system by the volume of requests
4. D. The percent of capacity used by your system for current requests

Correct Answer: B

Which of the following is the BEST example of an SRE team that embraces full-service ownership?

1. A. The team is responsible for the coding and improvement of the application.
2. B. The team is accountable for the application development and performance.
3. C. The team is responsible for application performance and reliability aspects.
4. D. The team is accountable for coding, shipping, and improving the application.

Correct Answer: D

Which of the following is NOT a SRE principle?

1. A. Operations is a software problem
2. B. Automate what is currently done manually
3. C. Toil is not important work
4. D. Reduce the cost of failure

Correct Answer: C

Which scenario BEST illustrates the swarming concept used during incident management?

1. A. An incident analyst rote escalates by assessing a consolidated list of next-level support teams and their area of expertise
2. B. A high-level specialist support team constantly reviews their incoming incident queue to respond instantly to escalations
3. C. A mid-level support team continually monitors escalated incidents to assigned teams to ensure they are making progress
4. D. A group of specialist teams meet and review a queue of escalated incidents to determine who should work on which one

Correct Answer: D