AWS Certified Data Engineer Associate DEA-C01 Practice Question
Your analytics team plans to land about 2 TB of new, structured sales data in AWS each day. They must run complex SQL joins across 100 TB of historical data, support roughly 200 concurrent dashboard users, and load new data continuously without locking running queries. Queries should complete within seconds. Which managed AWS data store is the most appropriate?
Run an Amazon EMR cluster and execute Apache Hive queries on Parquet files stored in Amazon S3.
Create an Amazon Redshift cluster with RA3 nodes and enable Concurrency Scaling.
Deploy Amazon RDS for PostgreSQL on db.r6g.16xlarge with provisioned IOPS and multiple read replicas.
Store the data in Amazon DynamoDB using on-demand capacity and query it with PartiQL.
Amazon Redshift is a managed, petabyte-scale columnar data warehouse purpose-built for complex analytic SQL workloads. RA3 nodes let you separate compute from storage so hundreds of terabytes can be kept at low cost, while Concurrency Scaling automatically adds transient capacity to serve hundreds of simultaneous users with sub-second latency. The COPY command can stream data into staging tables without blocking queries. Amazon RDS for PostgreSQL is limited to 64 TB and becomes I/O-constrained under heavy analytic concurrency. DynamoDB is a NoSQL key-value store; large joins and ad-hoc SQL analytics are inefficient. Apache Hive on EMR performs well for batch processing, but interactive queries across 100 TB typically take minutes and do not scale to hundreds of concurrent dashboard users.
Ask Bash
Bash is our AI bot, trained to help you pass your exam. AI Generated Content may display inaccurate information, always double-check anything important.
What are RA3 nodes in Amazon Redshift?
Open an interactive chat with Bash
How does Concurrency Scaling work in Amazon Redshift?
Open an interactive chat with Bash
Why is DynamoDB not suitable for complex SQL analytics?
Open an interactive chat with Bash
What are RA3 nodes in Amazon Redshift and why are they important?
Open an interactive chat with Bash
How does Amazon Redshift's Concurrency Scaling work?
Open an interactive chat with Bash
Why is DynamoDB not suitable for SQL analytics with large joins?
Open an interactive chat with Bash
AWS Certified Data Engineer Associate DEA-C01
Data Store Management
Your Score:
Report Issue
Bash, the Crucial Exams Chat Bot
AI Bot
Loading...
Loading...
Loading...
Pass with Confidence.
IT & Cybersecurity Package
You have hit the limits of our free tier, become a Premium Member today for unlimited access.
Military, Healthcare worker, Gov. employee or Teacher? See if you qualify for a Community Discount.
Monthly
$19.99
$19.99/mo
Billed monthly, Cancel any time.
3 Month Pass
$44.99
$14.99/mo
One time purchase of $44.99, Does not auto-renew.
MOST POPULAR
Annual Pass
$119.99
$9.99/mo
One time purchase of $119.99, Does not auto-renew.
BEST DEAL
Lifetime Pass
$189.99
One time purchase, Good for life.
What You Get
All IT & Cybersecurity Package plans include the following perks and exams .