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 331–340 of 498

Q331

You are implementing a data warehouse solution. Which AWS service is ideal for this purpose?

  • A Redshift
  • B DynamoDB
  • C S3
  • D RDS
Explanation Redshift is specifically designed for data warehousing, while others serve different purposes.
Q332

A company needs to process streaming data in real-time. Which service should they use?

  • A Kinesis
  • B SQS
  • C EMR
  • D Lambda
Explanation Kinesis is designed for real-time data processing, whereas others serve different use cases.
Q333

What happens when you assign an IAM role to an EC2 instance?

  • A Instance inherits the role's permissions
  • B Toggle configuration of the instance
  • C Limits instance capacity
  • D Automatically creates an S3 bucket
Explanation The instance inherits the permissions of the role, enabling it to access AWS services.
Q334

Which service provides serverless computing in AWS?

  • A AWS Lambda
  • B Amazon EC2
  • C Amazon RDS
  • D Amazon ECS
Explanation AWS Lambda executes code in response to events; EC2 and RDS are virtual and managed databases, respectively, while ECS is for container orchestration.
Q335

A company needs to securely share data between multiple AWS accounts. Which service should they use?

  • A Amazon S3
  • B AWS Lambda
  • C AWS Resource Access Manager
  • D Amazon CloudFront
Explanation AWS Resource Access Manager enables secure resource sharing between accounts; S3 alone does not manage permissions across AWS accounts.
Q336

You are configuring an IAM policy to limit S3 access. What happens if a policy allows access and another denies it?

  • A Access is granted
  • B Access is denied
  • C Access depends on service
  • D Policy needs modification
Explanation Deny overrides allow in IAM policies, ensuring security; other options are incorrect because AWS policy evaluation is explicit deny over allow.
Q337

Which service allows for automated scalability in AWS?

  • A Auto Scaling
  • B Elastic Load Balancing
  • C Amazon CloudWatch
  • D AWS Lambda
Explanation Auto Scaling automatically adjusts resource capacity; others do not provide this feature directly.
Q338

A company needs to manage permissions for its data lake stored in S3. What is the best practice?

  • A Use bucket policies only
  • B Use IAM roles with S3 permissions
  • C Use public access settings
  • D Use S3 presigned URLs
Explanation IAM roles with specific permissions are the best practice for managing S3 access; other options have limitations on security or scope.
Q339

You are configuring a large RDS instance. What happens when you change the instance type?

  • A Immediate scaling with no downtime
  • B Scheduled maintenance window required
  • C Data loss may occur
  • D Snapshots are automatically created
Explanation Changing instance types requires a maintenance window for the modification; others are incorrect regarding data and downtime implications.
Q340

Which service allows data querying over S3 data?

  • A Amazon Athena
  • B AWS Glue
  • C Amazon RDS
  • D Amazon EMR
Explanation Amazon Athena directly queries data in S3 using SQL, while others serve different purposes.