What's changed: Created Associate Data Practitioner Chapter 4 (Domain 4 "Data management": access control and governance = IAM least privilege/predefined roles/Cloud Storage uniform access/Analytics Hub; lifecycle management = storage classes/lifecycle rules/BigQuery expiration; HA/DR and security = backup/recovery/replication/primary-secondary location/CMEK-CSEK-GMEK/Cloud KMS/encryption at rest-in transit).
4.2Lifecycle management
Understand choosing Cloud Storage classes by access frequency and retention requirements, configuring rules to auto-delete objects after a period to reduce storage cost (Cloud Storage, BigQuery), and evaluating archiving services by business requirements.
Data is accessed less over time. Lifecycle management optimizes cost by moving old data to cheaper classes or deleting it.
4.2.1Storage classes
Choose Cloud Storage classes by access frequency: Standard (frequent), Nearline (~monthly), Coldline (~quarterly), and Archive (long-term, rarely accessed). Note that less access = cheaper storage but pricier retrieval. Putting frequently accessed data in Coldline/Archive becomes more expensive due to retrieval.
4.2.2Lifecycle rules and archiving
Lifecycle rules automate "delete N days after creation" or "move to a cheaper class after N days" (Cloud Storage, and BigQuery table/partition expiration). This prevents accumulation of unneeded data and continuously reduces storage cost. For long-term retention, evaluate archive classes or services by requirements (retention, retrieval frequency, cost). Map "auto-delete/move old data = lifecycle rules."
Continue reading — free sign-up
You're reading the free preview. Sign up free to read this section in full, plus every chapter (including 4+) and all questions.