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 301–310 of 498

Q301

Which service is ideal for blockchain solutions?

  • A Amazon Managed Blockchain
  • B AWS Lambda
  • C Amazon RDS
  • D Amazon Athena
Explanation Amazon Managed Blockchain is designed specifically for blockchain applications, while the other services serve different purposes.
Q302

A company needs to optimize its S3 storage costs for infrequently accessed data. What should they use?

  • A S3 Intelligent-Tiering
  • B S3 Standard
  • C S3 One Zone-IA
  • D S3 Glacier
Explanation S3 One Zone-IA is designed for infrequently accessed data at a lower cost, unlike the other options.
Q303

What happens when you set an S3 bucket policy to deny all public access?

  • A Public access is denied.
  • B Access is allowed to all users.
  • C Only authenticated users can access.
  • D S3 bucket becomes private.
Explanation Setting a bucket policy to deny all public access ensures that public access is effectively blocked, aligning with AWS security best practices.
Q304

Which AWS service is best for real-time data streaming?

  • A Amazon Kinesis
  • B Amazon RDS
  • C AWS Lambda
  • D Amazon S3
Explanation Amazon Kinesis is specifically designed for real-time data streaming, while the others serve different purposes.
Q305

A company needs to analyze large datasets frequently. What AWS service should they use?

  • A Amazon Redshift
  • B Amazon S3
  • C AWS Glue
  • D Amazon RDS
Explanation Amazon Redshift is optimized for complex queries on large datasets, while others are not primarily analytical engines.
Q306

You are configuring an S3 bucket policy to allow public access. What is a common risk associated with this?

  • A Increased operational cost
  • B Data exposure to unauthorized users
  • C Reduced data accessibility
  • D Automatic deletion of objects
Explanation Allowing public access increases the risk of data exposure to unauthorized users, which can lead to sensitive data leaks.
Q307

Which AWS service provides a fully managed NoSQL database?

  • A DynamoDB
  • B RDS
  • C Aurora
  • D Redshift
Explanation DynamoDB is specifically designed for NoSQL data, while others are SQL-based services.
Q308

A company wants to ensure that their S3 data is encrypted at rest. What should they implement?

  • A AWS KMS with S3 Encryption
  • B CloudTrail
  • C IAM Policies
  • D CloudFront
Explanation AWS KMS allows S3 data to be encrypted easily at rest, while other options do not provide encryption directly.
Q309

You are configuring an AWS Lambda function. What happens if it exceeds the allocated timeout period?

  • A Function terminates silently
  • B Function continues to run
  • C Returns an error message
  • D Automatically retries the function
Explanation If a Lambda function exceeds its timeout, it terminates without a response, while the other options describe incorrect behavior.
Q310

Which service is best for real-time stream processing?

  • A Amazon Kinesis
  • B Amazon S3
  • C AWS Batch
  • D AWS Glue
Explanation Amazon Kinesis is specifically designed for real-time data processing, while S3 is for storage, AWS Batch is for scheduled jobs, and Glue is for ETL planning.