DJames617 Service Comparison
Glue vs EMR
Both can process big data, but operations and control differ.
What They Have in Common
Each option can solve part of the scenario. The exam expects you to choose the one that satisfies the stated constraints with the right operational burden, security boundary, availability model, and cost behavior.
Key Differences
| Option | Primary model | Best use | Security | Availability | Operations and cost |
|---|---|---|---|---|---|
| Glue | Serverless ETL/catalog | Managed Spark jobs, crawlers, catalog, less ops | IAM, KMS, data-location and network controls | Managed service; job retries and bookmarks support recovery | DPU/job cost; lowest cluster operations |
| EMR | Managed cluster framework | Spark/Hadoop cluster control, specialized frameworks, long-running clusters | IAM, security groups, encryption, bootstrap hardening | Cluster and node placement require architecture | Cluster ops and instance cost; highest control |
Typical Exam Clues
Practice After Studying
Return to the certification guide that includes this comparison and launch domain training from there.