DEA-C01 Cheat Sheet

#	Domain	Weight	Questions	Practice
2.0	Data Store Management	26%	640	Practice →
Total	26%	2,486

Domain

Weight

Questions

Practice

2.0

Data Store Management

26%

640

Practice →

Total

26%

2,486

Domain Quick Reference

2.0Data Store Management

Candidates must configure S3 lifecycle policies, DynamoDB capacity and GSIs, Glue Data Catalog partitions, and Lake Formation grants. Get S3 storage class transitions and Lake Formation column-level permissions right, since most scenario questions hinge on least-privilege access and cost-optimal storage.

26%

Key concepts

✓Selecting S3 storage classes, lifecycle transitions and Intelligent-Tiering for cost and access patterns
✓Configuring DynamoDB partition keys, GSIs/LSIs, on-demand versus provisioned capacity and DynamoDB Streams
✓Managing Glue Data Catalog databases, tables, partitions and crawler classification of S3 data
✓Applying Lake Formation grants, S3 bucket policies and KMS keys for fine-grained data access control

Watch out for

⚠Choosing S3 Glacier Deep Archive for data needing millisecond retrieval, ignoring the hours-long restore time and retrieval charges
⚠Using a low-cardinality DynamoDB partition key, causing hot partitions and throttling instead of even read/write distribution
⚠Granting IAM permissions on S3 but forgetting Lake Formation table grants, so Athena and Redshift Spectrum queries still fail

Exam Day Reminders

→Read every question stem fully — look for qualifiers like 'MOST likely,' 'BEST,' or 'EXCEPT.'

→Flag uncertain questions and come back — don't waste time on one question.

→Eliminate obviously wrong options first, then choose between remaining ones.

→Trust your first instinct unless you have a specific reason to change.

→For DEA-C01, scenarios typically have one clearly best answer — look for the option that matches the specific constraints in the question.

#	Domain	Weight	Questions	Practice
2.0	Data Store Management	26%	640	Practice →
Total	26%	2,486

Domain

Weight

Questions

Practice

2.0

Data Store Management

26%

640

Practice →

Total

26%

2,486

Domain Quick Reference

2.0Data Store Management

26%

Key concepts

✓Selecting S3 storage classes, lifecycle transitions and Intelligent-Tiering for cost and access patterns
✓Configuring DynamoDB partition keys, GSIs/LSIs, on-demand versus provisioned capacity and DynamoDB Streams
✓Managing Glue Data Catalog databases, tables, partitions and crawler classification of S3 data
✓Applying Lake Formation grants, S3 bucket policies and KMS keys for fine-grained data access control

Watch out for

⚠Choosing S3 Glacier Deep Archive for data needing millisecond retrieval, ignoring the hours-long restore time and retrieval charges
⚠Using a low-cardinality DynamoDB partition key, causing hot partitions and throttling instead of even read/write distribution
⚠Granting IAM permissions on S3 but forgetting Lake Formation table grants, so Athena and Redshift Spectrum queries still fail

Exam Day Reminders

→Read every question stem fully — look for qualifiers like 'MOST likely,' 'BEST,' or 'EXCEPT.'

→Flag uncertain questions and come back — don't waste time on one question.

→Eliminate obviously wrong options first, then choose between remaining ones.

→Trust your first instinct unless you have a specific reason to change.

→For DEA-C01, scenarios typically have one clearly best answer — look for the option that matches the specific constraints in the question.

DEA-C01 Exam Blueprint — At a Glance

Domain Quick Reference

2.0Data Store Management

Exam Day Reminders

More DEA-C01 resources

DEA-C01 Cheat Sheet

DEA-C01 Exam Blueprint — At a Glance

Domain Quick Reference

2.0Data Store Management

Exam Day Reminders

More DEA-C01 resources