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 391–400 of 498

Q391

Which service automates the process of machine learning model training and deployment?

  • A Amazon SageMaker
  • B AWS Lambda
  • C AWS Glue
  • D Amazon RDS
Explanation Amazon SageMaker specializes in automating machine learning workflows; the others serve different purposes.
Q392

A company needs to store sensitive customer data securely. Which AWS service is most appropriate for encrypting data at rest?

  • A Amazon S3
  • B AWS Key Management Service (KMS)
  • C Amazon CloudFront
  • D Amazon Route 53
Explanation AWS KMS is specifically designed for managing encryption keys, while the other options do not directly manage encryption services.
Q393

You are configuring an Amazon RDS instance with Multi-AZ deployment. What happens during a database upgrade?

  • A Downtime is not expected
  • B Both instances go down
  • C One instance goes down
  • D No backup during upgrade
Explanation Multi-AZ deployment allows upgrades with minimal downtime; the other options incorrectly suggest more significant downtime or risks.
Q394

Which service provides temporary access to AWS resources?

  • A AWS IAM Roles
  • B AWS S3
  • C AWS EC2
  • D AWS RDS
Explanation AWS IAM Roles provide temporary access, while the others are services.
Q395

A company needs to automate its data pipeline. Which AWS service should they use?

  • A AWS Glue
  • B AWS DynamoDB
  • C AWS CloudTrail
  • D AWS Lambda
Explanation AWS Glue is specifically designed for data cataloging and ETL processes.
Q396

You are configuring a VPC. What happens when you assign a security group to an instance?

  • A Traffic is blocked by default
  • B Traffic is allowed by default
  • C It limits CPU usage
  • D It configures storage automatically
Explanation Security groups allow no inbound traffic by default, while the others misrepresent group functionality.
Q397

Which AWS service is ideal for managing NoSQL databases?

  • A DynamoDB
  • B RDS
  • C Redshift
  • D CloudFront
Explanation DynamoDB is specifically designed for NoSQL workloads, unlike the other options.
Q398

A company needs to automate data backups in S3. Which feature should they use?

  • A S3 Lifecycle Policies
  • B S3 Versioning
  • C S3 Transfer Acceleration
  • D S3 Object Lock
Explanation S3 Lifecycle Policies are designed to automate data management and backups.
Q399

What happens when you stop an AWS EC2 instance?

  • A Data on the instance is preserved
  • B All data is deleted
  • C Instance type changes automatically
  • D Billing continues for storage only
Explanation Stopping an EC2 instance preserves data; however, data on ephemeral disks is lost.
Q400

Which service is used for serverless computing on AWS?

  • A AWS Lambda
  • B EC2 Instances
  • C Elastic Beanstalk
  • D S3 Storage
Explanation AWS Lambda allows execution of code without provisioning servers; EC2 requires setup, Elastic Beanstalk manages applications, and S3 is for storage.