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 261–270 of 498

Q261

You are configuring IAM roles for a Lambda function. What happens when you attach a role with insufficient permissions?

  • A Lambda executes with errors
  • B Lambda execution is denied
  • C Lambda uses default permissions
  • D Lambda executes partially
Explanation Lambda execution is denied if the role lacks necessary permissions, while others inaccurately suggest alternative scenarios.
Q262

Which service is best for processing large datasets in real-time?

  • A AWS S3
  • B AWS Lambda
  • C Amazon Kinesis
  • D AWS Glue
Explanation Amazon Kinesis is specifically designed for real-time data processing, while the others serve different purposes.
Q263

A company needs to analyze historical data stored in S3 and generate periodic reports. Which solution should they choose?

  • A AWS Snowball
  • B Amazon Redshift
  • C AWS Lambda
  • D Amazon EC2
Explanation Amazon Redshift is optimized for data warehousing and analytics on large datasets stored in S3, while the others do not support this use case effectively.
Q264

You are configuring an IAM policy that requires access to both S3 and DynamoDB. What will happen if the policy includes only S3 permissions?

  • A Access to both services granted
  • B Access to S3 only granted
  • C Access to DynamoDB only granted
  • D No access to any service granted
Explanation Only the S3 permissions will be effective, resulting in access to S3 only, while DynamoDB access will be denied.
Q265

Which AWS service provides a fully managed NoSQL database?

  • A DynamoDB
  • B RDS
  • C Redshift
  • D S3
Explanation DynamoDB is a fully managed NoSQL database, while RDS is for SQL databases, Redshift is a data warehouse, and S3 is an object storage service.
Q266

A company needs to archive large amounts of data but access it infrequently. Which storage class should they choose?

  • A S3 Glacier
  • B S3 Standard
  • C S3 Intelligent-Tiering
  • D EFS
Explanation S3 Glacier is optimized for infrequent access and long-term storage, while the other options are not cost-effective for this use case.
Q267

What happens when a Lambda function times out?

  • A It fails and logs an error
  • B It completes but ignores the timeout
  • C It retries automatically
  • D It sends a notification
Explanation When a Lambda function times out, it fails and logs an error; it does not complete or retry, nor does it send notifications automatically.
Q268

Which service is best for real-time analytics on streaming data?

  • A Amazon Kinesis
  • B Amazon RDS
  • C Amazon EC2
  • D Amazon S3
Explanation Amazon Kinesis is designed for real-time data processing, while the others are for different purposes.
Q269

A company needs to provide access to an S3 bucket for third-party vendors. What is the best practice?

  • A Create AWS IAM users for each vendor
  • B Use S3 bucket policies to restrict access
  • C Share your AWS root credentials
  • D Expose S3 bucket URL publicly
Explanation Using S3 bucket policies ensures controlled access without compromising security.
Q270

What happens when you apply an IAM policy that denies all actions to the root user?

  • A Root user is immediately disabled
  • B Root user can still change permissions
  • C Root user remains unaffected
  • D Root user cannot log in at all
Explanation The root user cannot be restricted by IAM policies and retains full permissions.