Amazon AWS

AWS Certified Developer – Associate

DVA-C02
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The AWS Certified Developer – Associate (DVA-C02) exam tests your proficiency in developing applications on AWS. It is designed for developers looking to validate their skills in AWS development.

492 questions 0 views Free
Start Mock Test Timed · Full-length · Scored

Questions 421–430 of 492

Q421

Which service automatically scales capacity in real-time?

  • A Amazon EC2 Auto Scaling
  • B Amazon S3
  • C AWS Lambda
  • D AWS Glue
Explanation Amazon EC2 Auto Scaling adjusts capacity based on demand, while others do not provide auto-scaling capabilities.
Q422

A company needs a fast and flexible NoSQL database. Which service should they choose?

  • A Amazon RDS
  • B Amazon DynamoDB
  • C Amazon Redshift
  • D Amazon Aurora
Explanation Amazon DynamoDB is specifically designed for NoSQL use cases while the others are relational databases or analytic services.
Q423

What happens when an IAM policy allows an action on an S3 bucket but denies it on the object level?

  • A Access is granted to the object.
  • B Access is denied to the object.
  • C Access is granted to the bucket.
  • D Access is denied to the bucket.
Explanation The explicit deny for the object level takes precedence over the allow for the bucket.
Q424

Which service can dynamically adjust the number of EC2 instances?

  • A Auto Scaling
  • B CloudFront
  • C S3 Storage
  • D RDS
Explanation Auto Scaling adjusts EC2 instances based on demand; others don't provide this dynamic scaling feature.
Q425

A company needs to share sensitive data securely with partners. Which service should they use?

  • A AWS S3 with public access
  • B AWS DataSync
  • C AWS Transfer Family
  • D AWS Secrets Manager
Explanation AWS Transfer Family facilitates secure data transfer, while others do not focus specifically on secure sharing with partners.
Q426

What happens when you attach a security group with no inbound rules to an EC2 instance?

  • A Instance can receive all traffic
  • B Instance cannot receive any traffic
  • C Instance can send all traffic
  • D Instance is fully exposed to the internet
Explanation No inbound rules means the instance can't receive traffic; others misinterpret traffic flows or incorrect rules.
Q427

Which service provides a serverless compute platform?

  • A AWS Lambda
  • B Amazon EC2
  • C AWS Elastic Beanstalk
  • D Amazon ECS
Explanation AWS Lambda allows running code without provisioning servers, while the others require server management.
Q428

A company needs to track API calls in real-time. Which service should they use?

  • A AWS CloudTrail
  • B Amazon CloudWatch
  • C AWS Config
  • D AWS X-Ray
Explanation AWS CloudTrail logs API calls for tracking, while other options serve different purposes.
Q429

You are configuring an application that requires users to authenticate through social providers. What AWS service can help?

  • A Amazon Cognito
  • B AWS IAM
  • C AWS Directory Service
  • D Amazon RDS
Explanation Amazon Cognito supports social provider authentication, whereas the other services focus on identity and access management or database services.
Q430

Which service allows you to run code in response to events without provisioning servers?

  • A AWS Lambda
  • B Amazon EC2
  • C Amazon S3
  • D AWS Batch
Explanation AWS Lambda is serverless and executes code in response to events, unlike the other options which require server management.