About This Flashcard Deck
This flashcard deck contains 10 cards covering key Cloud DevOps concepts for the PCDOE exam. Test your GCP DevOps and SRE knowledge. Use active recall by attempting to answer each question before revealing the answer.
Question
What is an error budget?
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Answer
100% − SLO = error budget. If SLO is 99.9%, error budget is 0.1% (~43 min/month). When depleted, halt feature work and fix reliability.
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All Cloud DevOps Flashcards
Q: What is an error budget?
A: 100% − SLO = error budget. If SLO is 99.9%, error budget is 0.1% (~43 min/month). When depleted, halt feature work and fix reliability.
Q: What are the 4 golden signals?
A: Latency, Traffic, Errors, Saturation. These are the most important metrics for monitoring any service.
Q: What is Cloud Deploy?
A: Managed continuous delivery service for GKE and Cloud Run. Defines delivery pipelines with promotion across environments.
Q: What is Binary Authorization?
A: Policy-based admission control for GKE. Ensures only signed and trusted container images are deployed.
Q: What is toil?
A: Manual, repetitive, automatable, tactical work with no enduring value. SRE goal: keep toil below 50% of team time.
Q: What is a blameless post-mortem?
A: Post-incident review focused on system improvements, not individual blame. Documents timeline, root cause, and action items.
Q: What is Cloud Build?
A: Managed CI/CD. Builds containers, runs tests, deploys. Triggered by source repos, GitHub, or manual. Uses cloudbuild.yaml.
Q: What is GKE Horizontal Pod Autoscaler?
A: Automatically scales pods based on CPU, memory, or custom metrics. Keeps utilization at the target value.
Q: What is a canary deployment?
A: Deploy to a small subset of users/instances first. Monitor for issues. If healthy, gradually increase traffic. Rollback if problems found.
Q: What is an SLO?
A: Service Level Objective — a target value for an SLI over a time window. Example: 99.9% of requests complete in <200ms over 30 days.
GCP Flashcard Study Approach
Google Cloud exams emphasise service selection and architecture decisions. Use these flashcards to build instant recall of GCP service capabilities, then apply that knowledge to scenario-based practice questions. Pay special attention to cards about managed vs. unmanaged services and serverless options — GCP strongly favours managed and serverless architectures in their exam scenarios.