Amazon AWS

AWS Certified Data Engineer – Associate

DEA-C01

The AWS Certified Data Engineer – Associate (DEA-C01) exam validates your skills in data engineering on AWS. It is suitable for those who want to demonstrate their ability to design and implement data solutions.

498 questions 0 views Free
Start Mock Test Timed · Full-length · Scored

Questions 281–290 of 498

Q281

A company needs to track changes to security configurations in AWS. Which service should they use?

  • A AWS CloudTrail
  • B Amazon CloudWatch
  • C AWS Config
  • D AWS Trusted Advisor
Explanation AWS Config specifically records and tracks security changes, unlike the other services.
Q282

What happens when you set an S3 bucket policy that denies all actions for public access?

  • A All public users are blocked
  • B Only logged-in users can access
  • C Everyone retains read access
  • D It causes an error in S3
Explanation Denying all public access blocks access for all public users effectively.
Q283

Which service is used for serverless computing in AWS?

  • A AWS Lambda
  • B EC2 Instances
  • C S3 Buckets
  • D CloudFormation
Explanation AWS Lambda enables serverless applications, while others require management.
Q284

A company needs to automatically replicate S3 objects across regions. Which feature should they use?

  • A S3 Cross-Region Replication
  • B S3 Lifecycle Policies
  • C S3 Versioning
  • D S3 Transfer Acceleration
Explanation S3 Cross-Region Replication automatically replicates objects across regions, unlike the others.
Q285

You are configuring an Amazon RDS instance to handle unexpected traffic spikes. What happens if the RDS instance reaches max connections?

  • A New connections will be queued
  • B Additional connections will be dropped
  • C Service will restart automatically
  • D Instance will scale vertically
Explanation Any new connections above the limit will be dropped; it does not queue or auto-restart.
Q286

Which service enables real-time processing of streaming data?

  • A Amazon Kinesis
  • B AWS Glue
  • C Amazon S3
  • D AWS Batch
Explanation Amazon Kinesis is designed for real-time data streaming, while others serve different purposes.
Q287

A company needs to ensure that their S3 buckets are not publicly accessible. What should they implement?

  • A Bucket Policy Only
  • B Public Access Block
  • C Versioning Enabled
  • D Lifecycle Policy
Explanation Public Access Block settings ensure no public access to buckets, unlike the others which do not directly control public access.
Q288

What happens when a Glue ETL job fails during execution?

  • A Job automatically retries until success
  • B Job fails without notifying anyone
  • C Job can be configured for checkpointing
  • D Job outputs results despite failure
Explanation Checkpointing in Glue allows tracking processed data and managing failures effectively, unlike the others which are incorrect behaviors.
Q289

Which service can provide real-time data processing?

  • A AWS Lambda
  • B Amazon S3
  • C Amazon RDS
  • D AWS Batch
Explanation AWS Lambda facilitates real-time event-driven processing, while S3 is for storage, RDS is for databases, and Batch is for batch processing.
Q290

A company needs to combine multiple data sources into a single view. Which AWS service would be most suitable?

  • A Amazon Redshift
  • B AWS Glue
  • C AWS Athena
  • D Amazon EMR
Explanation AWS Glue is specifically designed for ETL operations, whereas Redshift is for data warehousing, Athena for ad-hoc queries, and EMR for big data processing.