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 161–170 of 498

Q161

What happens when you delete an Amazon EC2 instance with EBS-backed storage?

  • A Data is lost permanently
  • B EBS volume remains intact
  • C EC2 instance is paused
  • D Instance is recreated automatically
Explanation If the EBS volume is set to not delete on termination, it remains intact, otherwise, it will be deleted.
Q162

You are configuring a Redshift cluster and want to optimize query performance. What should you implement?

  • A Data sharding
  • B Distribution styles
  • C Multi-AZ deployments
  • D Data encryption
Explanation Choosing the appropriate distribution style greatly enhances query performance, while other options serve different functionalities.
Q163

Which AWS service is specifically designed for real-time data processing?

  • A Amazon Kinesis
  • B Amazon S3
  • C Amazon Redshift
  • D AWS Lambda
Explanation Amazon Kinesis is built for real-time processing, while others are not.
Q164

A company needs to securely share data with its partners while maintaining control. What is the best approach?

  • A Use S3 with public bucket ACLs
  • B Use AWS IAM roles for shared access
  • C Enable S3 Bucket Versioning
  • D Use Amazon CloudFront as a CDN
Explanation Using IAM roles provides secure, controlled data sharing unlike public ACLs.
Q165

You are configuring AWS Glue for ETL jobs. What does enabling continuous logging do?

  • A Records job metrics only
  • B Logs data in Amazon S3 only
  • C Provides real-time job status updates
  • D Reduces job duration by 50%
Explanation Continuous logging gives real-time job updates, while others are inaccurate.
Q166

Which service provides fault tolerance and scalability through event-driven applications?

  • A AWS Lambda
  • B Amazon RDS
  • C Amazon S3
  • D AWS Batch
Explanation AWS Lambda allows for automatic scaling and fault tolerance for event-driven applications, unlike the others that are not event-driven.
Q167

A company needs to transfer large amounts of data from on-premises to AWS with minimal downtime. Which AWS service should be used?

  • A AWS Migration Hub
  • B AWS Snowball
  • C AWS Direct Connect
  • D Amazon S3 Transfer Acceleration
Explanation AWS Snowball is designed for transferring large datasets with minimal disruption, while others are not optimized for this use case.
Q168

What happens when you exceed your EC2 instance limits in your AWS account?

  • A New instances launch normally
  • B Instances fail to launch
  • C All services stop functioning
  • D You are charged extra
Explanation Exceeding EC2 instance limits results in the failure of new instance launches; the other options do not accurately describe the outcome.
Q169

Which AWS service is primarily used for event-driven computing?

  • A AWS Lambda
  • B Amazon EC2
  • C Amazon S3
  • D Amazon RDS
Explanation AWS Lambda allows you to run code in response to events, while the others are mainly compute, storage, or database services.
Q170

You are configuring a multi-region architecture. Which service provides global DNS routing?

  • A AWS Direct Connect
  • B Amazon Route 53
  • C AWS CloudFormation
  • D Amazon VPC
Explanation Amazon Route 53 offers DNS routing for high availability across regions, unlike the other options.