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 351–360 of 498

Q351

You are configuring a multi-AZ database deployment for high availability. What happens during a failover?

  • A Read operations are disabled
  • B No connection loss to application
  • C Data is lost during the failover
  • D Only read replicas become available
Explanation In a multi-AZ setup, failover occurs with connection continuity, unlike other options that indicate interruptions or data issues.
Q352

Which service should be used for transforming data in real-time?

  • A AWS Lambda
  • B Amazon S3
  • C Amazon RDS
  • D AWS Glue
Explanation AWS Lambda allows real-time data processing; the others do not primarily focus on real-time transformations.
Q353

A company needs to deploy multiple copies of a web application across different regions. Which AWS service best facilitates this requirement?

  • A AWS CloudFront
  • B AWS Elastic Beanstalk
  • C Amazon Route 53
  • D AWS Global Accelerator
Explanation AWS Global Accelerator improves availability and performance by routing traffic across regions; others do not focus on this use case.
Q354

What happens when a security group rule with a 'Deny' rule is added after an 'Allow' rule?

  • A Deny takes precedence over allow
  • B Allow takes precedence over deny
  • C Traffic is blocked completely
  • D Depends on stateful or stateless access
Explanation In AWS, Security Groups are stateful and a deny rule, if applicable, will take precedence over an allow rule.
Q355

Which service provides an event-driven architecture for microservices?

  • A AWS Lambda
  • B Amazon EC2
  • C Amazon RDS
  • D Amazon S3
Explanation AWS Lambda allows you to run code in response to events, making it ideal for microservices, while the others are for compute, database, or object storage.
Q356

A company needs to maintain data integrity in a multi-region application. What AWS service can help?

  • A Amazon RDS Multi-AZ
  • B Amazon DynamoDB Global Tables
  • C Amazon S3 Cross-Region Replication
  • D AWS Glue
Explanation Amazon DynamoDB Global Tables ensure data is consistent across multiple regions, unlike the others, which focus on replication or ETL tasks.
Q357

What happens when a user exceeds their EC2 instance limits?

  • A All instances stop immediately.
  • B No new instances can be launched.
  • C Existing instances are terminated.
  • D User receives a notification only.
Explanation When a user surpasses their EC2 instance limits, no new instances can be launched, but existing instances operate normally.
Q358

Which AWS service is best for automating backups for RDS databases?

  • A AWS Backup
  • B S3 Glacier
  • C DynamoDB
  • D CloudFormation
Explanation AWS Backup automates backup processes, while others serve different purposes.
Q359

A company needs to stream real-time data from IoT devices. Which service should they use?

  • A AWS Kinesis
  • B AWS SQS
  • C AWS CloudWatch
  • D AWS Glue
Explanation AWS Kinesis specializes in real-time data streaming.
Q360

You are configuring a VPC peering connection. What must you ensure?

  • A Both VPCs must have overlapping CIDR
  • B VPCs must be in different regions
  • C DNS resolution is enabled
  • D Both VPCs must be public
Explanation DNS resolution must be enabled for communication, others are incorrect requirements.