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Amazon AWS Certified Developer Associate Exam (DVA-C02) Sample Questions (Q238-Q243):

NEW QUESTION # 238
A company has an application that uses Amazon Cognito user pools as an identity provider. The company must secure access to user records. The company has set upmulti-factor authentication (MFA). The company also wants to send a login activity notification by email every time a user logs in.
What is the MOST operationally efficient solution that meets this requirement?

A. Create an AWS Lambda function that uses Amazon Simple Email Service (Amazon SES) to send the email notification. Create an Amazon CloudWatch Logs log subscription filter to invoke the function based on the login status.
B. Create an AWS Lambda function that uses Amazon Simple Email Service (Amazon SES) to send the email notification. Add an Amazon API Gateway API to invoke the function. Call the API from the client side when login confirmation is received.
C. Configure Amazon Cognito to stream all logs to Amazon Kinesis Data Firehose. Create an AWS Lambda function to process the streamed logs and to send the email notification based on the login status of each user.
D. Create an AWS Lambda function that uses Amazon Simple Email Service (Amazon SES) to send the email notification. Add an Amazon Cognito post authentication Lambda trigger for the function.

Answer: D

NEW QUESTION # 239
A team of Developers must migrate an application running inside an AWS Elastic Beanstalk environment from a Classic Load Balancer to an Application Load Balancer.
Which steps should be taken to accomplish the task using the AWS Management Console?

A. 1. Create a new environment with the same configurations except for the load balancer type.
2. Deploy the same application version as used in the original environment.
3. Run the swap-environment-cnames action.
B. 1. Edit the environment definitions in the existing deployment.
2. Change the associated load balancer type according to the requirements.
3. Rebuild the environment with the new load balancer type.
C. 1. Clone the existing environment, changing the associated load balancer type.
2. Deploy the same application version as used in the original environment.
3. Run the swap-environment-cnames action.
D. 1. Update the application code in the existing deployment.
2. Select a new load balancer type before running the deployment.
3. Deploy the new version of the application code to the environment.

Answer: A

NEW QUESTION # 240
A company maintains a REST service using Amazon API Gateway and the API Gateway native API key validation. The company recently launched a new registration page, which allows users to sign up for the service. The registration page creates a new API key using CreateApiKey and sends the new key to the user.
When the user attempts to call the API using this key, the user receives a 403 Forbidden error. Existing users are unaffected and can still call the API.
What code updates will grant these new users access to the API?

A. The createUsagePlanKey method must be called to associate the newly created API key with the correct usage plan.
B. The updateAuthorizer method must be called to update the API's authorizer to include the newly created API key.
C. The importApiKeys method must be called to import all newly created API keys into the current stage of the API.
D. The createDeployment method must be called so the API can be redeployed to include the newly created API key.

Answer: A

Explanation:
Explanation
https://stackoverflow.com/questions/39061041/using-an-api-key-in-amazon-api-gateway

NEW QUESTION # 241
A user has configured ELB. Which of the below mentioned protocols the user can configure for ELB health checks while setting up ELB?

A. All of the options
B. SSL
C. TCP
D. HTTPS

Answer: A

Explanation:
An ELB performs a health check on its instances to ensure that it diverts traffic only to healthy instances.
The ELB can perform a health check on HTTP, HTTPS, TCP and SSL protocols.
Reference: http://docs.aws.amazon.com/ElasticLoadBalancing/latest/DeveloperGuide/Welcome.html

NEW QUESTION # 242
A small startup company is looking to migrate a 4 TB on-premises MySQL database to AWS using an Amazon RDS for MySQL DB instance.
Which strategy would allow for a successful migration with the LEAST amount of downtime?

A. Deploy a new Amazon EC2 instance, install the MySQL software on the EC2 instance, and configure networking for access from the on-premises data center. Use the mysqldump utility to create a snapshot of the on-premises MySQL server. Copy the snapshot into the EC2 instance and restore it into the EC2 MySQL instance. Use AWS DMS to migrate data into a new RDS for MySQL DB instance. Point the application to the DB instance.
B. Deploy a new RDS for MySQL DB instance and configure it for access from the on-premises data center.
Use the mysqldump utility to create an initial snapshot from the on-premises MySQL server, and copy it to an Amazon S3 bucket. Import the snapshot into the DB instance utilizing the MySQL utilities running on an Amazon EC2 instance. Immediately point the application to the DB instance.
C. Deploy a new Amazon EC2 instance, install the MySQL software on the EC2 instance, and configure networking for access from the on-premises data center. Use the mysqldump utility to create a snapshot of the on-premises MySQL server. Copy the snapshot into an Amazon S3 bucket and import the snapshot into a new RDS for MySQL DB instance using the MySQL utilities running on an EC2 instance. Point the application to the DB instance.
D. Deploy a new RDS for MySQL DB instance and configure it for access from the on-premises data center.
Use the mysqldump utility to create an initial snapshot from the on-premises MySQL server, and copy it to an Amazon S3 bucket. Import the snapshot into the DB instance using the MySQL utilities running on an Amazon EC2 instance. Establish replication into the new DB instance using MySQL replication. Stop application access to the on-premises MySQL server and let the remaining transactions replicate over. Point the application to the DB instance.

Answer: A

NEW QUESTION # 243
......

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Mike White Mike White

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