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Amazon AWS Certified Developer - Associate Sample Questions (Q142-Q147):

NEW QUESTION # 142
A company launched an online portal to announce a new product that the company will release in 6 months. The portal requests that users enter an email address to receive communications about the product. The company needs to create a REST API that will store the email addresses in Amazon DynamoDB.
A developer has created an AWS Lambda function that can store the email addresses. The developer will deploy the Lambda function by using the AWS Serverless Application Model (AWS SAM). The developer must provide access to the Lambda function over HTTP.
Which solutions will meet these requirements with the LEAST additional configuration? (Select TWO.)

A. Expose the Lambda function by using AWS Global Accelerator
B. Expose the Lambda function by using a Network Load Balancer.
C. Expose the Lambda function by using function URLs.
D. Expose the Lambda function by using Amazon API Gateway.
E. Expose the Lambda function by using a Gateway Load Balancer.

Answer: C,D

NEW QUESTION # 143
A developer is creating an application that will store personal health information (PHI). The PHI needs to be encrypted at all times. An encrypted Amazon RDS for MySQL DB instance is storing the data. The developer wants to increase the performance of the application by caching frequently accessed data while adding the ability to sort or rank the cached datasets.
Which solution will meet these requirements?

A. Create an Amazon RDS for MySQL read replica. Connect to the read replica by using SSL. Configure the read replica to store frequently accessed data.
B. Create an Amazon DynamoDB table and a DynamoDB Accelerator (DAX) cluster for the table. Store frequently accessed data in the DynamoDB table.
C. Create an Amazon ElastiCache for Redis instance. Enable encryption of data in transit and at rest. Store frequently accessed data in the cache.
D. Create an Amazon ElastiCache for Memcached instance. Enable encryption of data in transit and at rest. Store frequently accessed data in the cache.

Answer: C

Explanation:
Amazon ElastiCache is a service that offers fully managed in-memory data stores that are compatible with Redis or Memcached. The developer can create an ElastiCache for Redis instance and enable encryption of data in transit and at rest. This will ensure that the PHI is encrypted at all times. The developer can store frequently accessed data in the cache and use Redis features such as sorting and ranking to enhance the performance of the application.
References:
* [What Is Amazon ElastiCache? - Amazon ElastiCache]
* [Encryption in Transit - Amazon ElastiCache for Redis]
* [Encryption at Rest - Amazon ElastiCache for Redis]

NEW QUESTION # 144
A company is hosting a workshop for external users and wants to share the reference documents with the external users for 7 days. The company stores the reference documents in an Amazon S3 bucket that the company owns.
What is the MOST secure way to share the documents with the external users?

A. Use S3 presigned URLs to share the documents with the external users. Set an expiration time of
7 days.
B. Create temporary IAM users that have read-only access to the S3 bucket. Share the access keys with the external users. Expire the credentials after 7 days.
C. Create a role that has read-only access to the S3 bucket. Share the Amazon Resource Name (ARN) of this role with the external users.
D. Move the documents to an Amazon WorkDocs folder. Share the links of the WorkDocs folder with the external users.

Answer: A

NEW QUESTION # 145
A development team maintains a web application by using a single AWS CloudFormation template. The template defines web servers and an Amazon RDS database. The team uses the Cloud Formation template to deploy the Cloud Formation stack to different environments.
During a recent application deployment, a developer caused the primary development database to be dropped and recreated. The result of this incident was a loss of dat a. The team needs to avoid accidental database deletion in the future.
Which solutions will meet these requirements? (Choose two.)

A. Update the CloudFormation stack policy to prevent updates to the database.
B. Add a CloudFormation Deletion Policy attribute with the Retain value to the database resource.
C. Modify the database to use a Multi-AZ deployment.
D. Create a CloudFormation stack set for the web application and database deployments.
E. Add a Cloud Formation DeletionPolicy attribute with the Retain value to the stack.

Answer: A,B

Explanation:
AWS CloudFormation is a service that enables developers to model and provision AWS resources using templates. The developer can add a CloudFormation Deletion Policy attribute with the Retain value to the database resource. This will prevent the database from being deleted when the stack is deleted or updated. The developer can also update the CloudFormation stack policy to prevent updates to the database. This will prevent accidental changes to the database configuration or properties.
Reference:
[What Is AWS CloudFormation? - AWS CloudFormation]
[DeletionPolicy Attribute - AWS CloudFormation]
[Protecting Resources During Stack Updates - AWS CloudFormation]

NEW QUESTION # 146
A company is creating a new feature for existing software. Before the company fully releases a new version of the software, the company wants to test the feature.
The company needs to gather feedback about the feature from a small group of users while the current software version remains deployed. If the testing validates the feature, the company needs to deploy the new software version to all other users at the same time.
Which deployment strategy will meet these requirements?

A. All-at-once deployment
B. Canary deployment
C. Linear deployment
D. In-place deployment

Answer: B

Explanation:
A canary deployment involves releasing the new version of the software to a small subset of users (the "canary group") first. The company can gather feedback from this group, and if the testing validates the feature, the deployment can be extended to all users at once. This strategy aligns with the company's need to test the feature with a small group of users while keeping the current version deployed for the rest of the users.

NEW QUESTION # 147
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The same premise exists with IP connectivity troubleshooting, This DVA-C02 is particularly relevant to declared properties, which are discussed later in this hour in the Using Declared Properties" section, p.

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