🔍

DVA-C02 — questions

Page 21 of 28 · 557 total questions.

DVA-C02 Question 401

Single page →
Topic 1 · Question 401

A company has a monolithic desktop-based application that processes images. A developer is converting the application into an AWS Lambda function by using Python. Currently, the desktop application runs every 5 minutes to process the latest image from an Amazon S3 bucket. The desktop application completes the image processing task within 1 minute. During testing on AWS, the developer notices that the Lambda function runs at the specified 5-minute interval. However, the Lambda function takes more than 2 minutes to complete the image processing task. The developer needs a solution that will improve the Lambda function's performance. Which solution will meet this requirement?

  • AUpdate the instance type of the Lambda function to a compute optimized instance with at least eight virtual CPU (vCPU).
  • BUpdate the configuration of the Lambda function to use the latest Python runtime.
  • CIncrease the memory that is allocated to the Lambda function. (correct answer)
  • DConfigure a reserved concurrency on the Lambda function.
Reveal answer & explanation
Correct answer: C

The correct answer is C. Option C: Increase the memory that is allocated to the Lambda function.

Explanation

AWS Lambda runs code without provisioning servers and scales automatically, which minimizes operational overhead.

DVA-C02 Question 402

Single page →
Topic 1 · Question 402

A company uses AWS CloudFormation templates to manage infrastructure for a public-facing application in its development, pre-production, and production environments. The company needs to scale for increasing customer demand. A developer must upgrade the Amazon RDS DB instance type to a larger instance. The developer deploys an update to the CloudFormation stack with the instance size change in the pre-production environment. The developer notices that the stack is in an UPDATE_ROLLBACK_FAILED slate in CloudFormation. Which option is the cause of this issue?

  • AThe new instance type specified in the CloudFormation template is invalid
  • BThe database was deleted or modified manually outside of the CloudFormation stack (correct answer)
  • CThere is a syntax error in the CloudFormation template
  • DThe developer has insufficient IAM permissions to provision an instance of the specified type
Reveal answer & explanation
Correct answer: B

The correct answer is B. Option B: The database was deleted or modified manually outside of the CloudFormation stack

Explanation

AWS CloudFormation provisions infrastructure as code repeatably.

DVA-C02 Question 403

Single page →
Topic 1 · Question 403

A developer needs to store files in an Amazon S3 bucket for a company's application. Each S3 object can have multiple versions. The objects must be permanently removed 1 year after object creation. The developer creates an S3 bucket that has versioning enabled. What should the developer do next to meet the data retention requirements?

  • ACreate an S3 Lifecycle rule on the S3 bucket. Configure the rule to expire current versions of objects and permanently delete noncurrent versions 1 year after object creation. (correct answer)
  • BCreate an event notification for all object creation events in the S3 bucket. Configure the event notification to invoke an AWS Lambda function. Program the Lambda function to check the object creation date and to delete the object if the object is older than 1 year.
  • CCreate an event notification for all object removal events in the S3 bucket. Configure the event notification to invoke an AWS Lambda function. Program the Lambda function to check the object creation date and to delete the object if the object is older than 1 year.
  • DCreate an S3 Lifecycle rule on the S3 bucket. Configure the rule to delete expired object delete markers and permanently delete noncurrent versions 1 year after object creation.
Reveal answer & explanation
Correct answer: A

The correct answer is A. Option A: Create an S3 Lifecycle rule on the S3 bucket. Configure the rule to expire current versions of objects and permanently delete noncurrent versions 1 year after object creation.

Explanation

S3 Lifecycle policies automatically transition or expire objects to control storage cost. Amazon S3 provides durable, scalable object storage that is fully managed. AWS Config tracks resource configuration changes and evaluates compliance.

DVA-C02 Question 404

Single page →
Topic 1 · Question 404

A company uses AWS X-Ray to monitor a serverless application. The components of the application have different request rates. The user interactions and transactions are important to trace, but they are low in volume. The background processes such as application health checks, polling, and connection maintenance generate high volumes of read-only requests. Currently, the default X-Ray sampling rules are universal for all requests. Only the first request per second and some additional requests are recorded. This setup is not helping the company review the requests based on service or request type. A developer must configure rules to trace requests based on service or request properties. The developer must trace the user interactions and transactions without wasting effort recording minor background tasks. Which solution will meet these requirements?

  • ADisable sampling for high-volume read-only requests. Sample at a lower rate for all requests that handle user interactions or transactions.
  • BDisable sampling and trace all requests for requests that handle user interactions or transactions. Sample high-volume read-only requests at a higher rate.
  • CDisable sampling and trace all requests for requests that handle user interactions or transactions. Sample high-volume read-only requests at a lower rate. (correct answer)
  • DDisable sampling for high-volume read-only requests. Sample at a higher rate for all requests that handle user interactions or transactions.
Reveal answer & explanation
Correct answer: C

The correct answer is C. Option C: Disable sampling and trace all requests for requests that handle user interactions or transactions. Sample high-volume read-only requests at a lower rate.

DVA-C02 Question 405

Single page →
Topic 1 · Question 405 · Select all that apply

A developer uses an AWS Lambda function in an application to edit users' uploaded photos. The developer needs to update the Lambda function code and needs to test the updates. For testing, the developer must divide the user traffic between the original version of the Lambda function and the new version of the Lambda function. Which combination of steps will meet these requirements? (Choose two.)

  • APublish a version of the original Lambda function. Make the necessary changes to the Lambda code. Publish a new version of the Lambda function. (correct answer)
  • BUse AWS CodeBuild to detect updates to the Lambda function. Configure CodeBuild to incrementally shift traffic from the original version of the Lambda function to the new version of the Lambda function.
  • CUpdate the original version of the Lambda function to add a function URL. Make the necessary changes to the Lambda code. Publish another function URL for the updated Lambda code.
  • DCreate an alias that points to the original version of the Lambda function. Configure the alias to be a weighted alias that also includes the new version of the Lambda function. Divide traffic between the two versions. (correct answer)
  • ECreate an alias that points to the original function URL. Configure the alias to be a weighted alias that also includes the additional function URL. Divide traffic between the two function URLs.
Reveal answer & explanation
Correct answer: A, D

The correct answer is A, D. Option A: Publish a version of the original Lambda function. Make the necessary changes to the Lambda code. Publish a new version of the Lambda function. Option D: Create an alias that points to the original version of the Lambda function. Configure the alias to be a weighted alias that also includes the new version of the Lambda function. Divide traffic between the two versions.

Explanation

AWS Lambda runs code without provisioning servers and scales automatically, which minimizes operational overhead. AWS Config tracks resource configuration changes and evaluates compliance.

DVA-C02 Question 406

Single page →
Topic 1 · Question 406

A company had an Amazon RDS for MySQL DB instance that was named mysql-db. The DB instance was deleted within the past 90 days. A developer needs to find which IAM user or role deleted the DB instance in the AWS environment. Which solution will provide this information?

  • ARetrieve the AWS CloudTrail events for the resource mysql-db where the event name is DeleteDBInstance. Inspect each event. (correct answer)
  • BRetrieve the Amazon CloudWatch log events from the most recent log stream within the rds/mysql-db log group. Inspect the log events.
  • CRetrieve the AWS X-Ray trace summaries. Filter by services with the name mysql-db. Inspect the ErrorRootCauses values within each summary.
  • DRetrieve the AWS Systems Manager deletions inventory. Filter the inventory by deletions that have a TypeName value of RDS. Inspect the deletion details.
Reveal answer & explanation
Correct answer: A

The correct answer is A. Option A: Retrieve the AWS CloudTrail events for the resource mysql-db where the event name is DeleteDBInstance. Inspect each event.

Explanation

AWS CloudTrail records API activity for auditing and governance.

DVA-C02 Question 407

Single page →
Topic 1 · Question 407

A company has an ecommerce web application that uses an on-premises MySQL database as a data store. The company migrates the on-premises MySQL database to Amazon RDS for MySQL. A developer needs to configure the application's access to the RDS for MySQL database. The developer's solution must not use long term credentials. Which solution will meet these requirements?

  • AEnable IAM database authentication on the RDS for MySQL DB instance. Create an IAM role that has the minimum required permissions. Assign the role to the application. (correct answer)
  • BStore the MySQL credentials as secrets in AWS Secrets Manager. Create an IAM role that has the minimum required permissions to retrieve the secrets. Assign the role to the application.
  • CConfigure the MySQL credentials as environment variables that are available at runtime for the application.
  • DStore the MySQL credentials as SecureString parameters in AWS Systems Manager Parameter Store. Create an IAM role that has the minimum required permissions to retrieve the parameters. Assign the role to the application.
Reveal answer & explanation
Correct answer: A

The correct answer is A. Option A: Enable IAM database authentication on the RDS for MySQL DB instance. Create an IAM role that has the minimum required permissions. Assign the role to the application.

Explanation

Amazon RDS is a managed relational database that handles patching, backups and failover. An IAM role grants temporary, least-privilege permissions to AWS resources without long-term credentials. AWS IAM controls authenticated and authorized access to AWS resources with fine-grained policies.

DVA-C02 Question 408

Single page →
Topic 1 · Question 408

A developer is creating an application that must transfer expired items from Amazon DynamoDB to Amazon S3. The developer sets up the DynamoDB table to automatically delete items after a specific TTL. The application must process the items in DynamoDB and then must store the expired items in Amazon S3. The entire process, including item processing and storage in Amazon S3, will take 5 minutes. Which solution will meet these requirements with the LEAST operational overhead?

  • AConfigure DynamoDB Accelerator (DAX) to query for expired items based on the TTL. Save the results to Amazon S3.
  • BConfigure DynamoDB Streams to invoke an AWS Lambda function. Program the Lambda function to process the items and to store the expired items in Amazon S3. (correct answer)
  • CDeploy a custom application on an Amazon Elastic Container Service (Amazon ECS) cluster on Amazon EC2 instances. Program the custom application to process the items and to store the expired items in Amazon S3.
  • DCreate an Amazon EventBridge rule to invoke an AWS Lambda function. Program the Lambda function to process the items and to store the expired items in Amazon S3.
Reveal answer & explanation
Correct answer: B

The correct answer is B. Option B: Configure DynamoDB Streams to invoke an AWS Lambda function. Program the Lambda function to process the items and to store the expired items in Amazon S3.

Explanation

AWS Lambda runs code without provisioning servers and scales automatically, which minimizes operational overhead. Amazon S3 provides durable, scalable object storage that is fully managed. Amazon DynamoDB is a fully managed, serverless NoSQL database with single-digit millisecond latency and automatic scaling.

DVA-C02 Question 409

Single page →
Topic 1 · Question 409 · Select all that apply

A developer has an application that uses WebSocket APIs in Amazon API Gateway. The developer wants to use an API Gateway Lambda authorizer to control access to the application. The developer needs to add credential caching and reduce repeated usage of secret keys and authorization tokens on every request. Which combination of steps should the developer take to meet these requirements? (Choose two.)

  • AUse a token-based Lambda authorizer. (correct answer)
  • BUse a request parameter-based Lambda authorizer.
  • CConfigure an integration request mapping template to reference the context map from the APIGateway Lambda authorizer. (correct answer)
  • DConfigure an integration request mapping template to reference the identity API key value from the API Gateway Lambda authorizer.
  • EUse VPC endpoint policies for the WebSocket APIs.
Reveal answer & explanation
Correct answer: A, C

The correct answer is A, C. Option A: Use a token-based Lambda authorizer. Option C: Configure an integration request mapping template to reference the context map from the APIGateway Lambda authorizer.

Explanation

AWS Lambda runs code without provisioning servers and scales automatically, which minimizes operational overhead. AWS Config tracks resource configuration changes and evaluates compliance.

DVA-C02 Question 410

Single page →
Topic 1 · Question 410

A developer builds a serverless application on AWS by using Amazon API Gateway, AWS Lambda functions, and Amazon Route 53. During testing, the developer notices errors but cannot immediately locate the root cause. To identify the errors, the developer needs to search all the application's logs. What should the developer do to meet these requirements with the LEAST operational overhead?

  • ASet up API Gateway health checks to monitor the application's availability. Use the Amazon CloudWatch PutMetricData API operation to publish the logs to CloudWatch. Search and query the logs by using Amazon Athena.
  • BSet up Route 53 health checks to monitor the application's availability. Turn on AWS CloudTrail logs for all the AWS services that the application uses. Send the logs to a specified Amazon S3 bucket. Use Amazon Athena to query the log files directly from Amazon S3.
  • CConfigure all the application's AWS services to publish a real-time feed of log events to an Amazon Kinesis Data Firehose delivery stream. Configure the delivery stream to publish all the logs to an Amazon S3 bucket. Use Amazon OpenSearch Service to search and analyze the logs.
  • DSet up Route 53 health checks to monitor the application's availability. Turn on Amazon CloudWatch Logs for the API Gateway stages to log API requests with a JSON log format. Use CloudWatch Logs Insights to search and analyze the logs from the AWS services that the application uses. (correct answer)
Reveal answer & explanation
Correct answer: D

The correct answer is D. Option D: Set up Route 53 health checks to monitor the application's availability. Turn on Amazon CloudWatch Logs for the API Gateway stages to log API requests with a JSON log format. Use CloudWatch Logs Insights to search and...

Explanation

Amazon Route 53 provides DNS with health checks and routing policies for availability and latency. Amazon API Gateway is a fully managed front door for creating and securing APIs at scale. Amazon CloudWatch collects metrics, logs and alarms to monitor and react to operational health.

DVA-C02 Question 411

Single page →
Topic 1 · Question 411

A developer needs to freeze changes to an AWS CodeCommit repository before a production release. The developer will work on new features while a quality assurance (QA) team tests the release. The QA testing and all bug fixes must take place in isolation from the main branch. After the release, the developer must integrate all bug fixes into the main branch. Which solution will meet these requirements?

  • ACreate a release branch from the latest Git commit that will be in the release. Apply fixes to the release branch. Continue developing new features, and merge the features into the main branch. Merge the release branch into the main branch after the release. (correct answer)
  • BCreate a Git tag on the latest Git commit that will be in the release. Continue developing new features, and merge the features into the main branch. Apply fixes to the main branch. Update the Git tag for the release to be on the latest commit on the main branch.
  • CCreate a release branch from the latest Git commit that will be in the release. Apply fixes to the release branch. Continue developing new features, and merge the features into the main branch. Rebase the main branch onto the release branch after the release.
  • DCreate a Git tag on the latest Git commit that will be in the release. Continue developing new features, and merge the features into the main branch. Apply the Git commits for fixes to the Git tag for the release.
Reveal answer & explanation
Correct answer: A

The correct answer is A. Option A: Create a release branch from the latest Git commit that will be in the release. Apply fixes to the release branch. Continue developing new features, and merge the features into the main branch. Merge the release branc...

DVA-C02 Question 412

Single page →
Topic 1 · Question 412

A developer is setting up AWS CodePipeline for a new application. During each build, the developer must generate a test report. Which solution will meet this requirement?

  • ACreate an AWS CodeBuild build project that runs tests. Configure the buildspec file with the test report information. (correct answer)
  • BCreate an AWS CodeDeploy deployment that runs tests. Configure the AppSpec file with the test report information.
  • CRun the builds on an Amazon EC2 instance that has AWS Systems Manager Agent (SSM Agent) installed and activated.
  • DCreate a repository in AWS CodeArtifact. Select the test report template.
Reveal answer & explanation
Correct answer: A

The correct answer is A. Option A: Create an AWS CodeBuild build project that runs tests. Configure the buildspec file with the test report information.

Explanation

AWS Config tracks resource configuration changes and evaluates compliance. AWS CodeBuild compiles, tests and packages code in a managed build service.

DVA-C02 Question 413

Single page →
Topic 1 · Question 413

A developer built an application by using multiple AWS Lambda functions. The Lambda functions must access dynamic configuration data at runtime. The data is maintained as a 6 KB JSON document in AWS AppConfig. The configuration data needs to be updated without requiring the redeployment of the application. The developer needs a solution that will give the Lambda functions access to the dynamic configuration data. What should the developer do to meet these requirements with the LEAST development effort?

  • AMigrate the document from AWS AppConfig to a Lambda environment variable. Read the document at the runtime.
  • BConfigure the AWS AppConfig Agent Lambda extension. Access the dynamic configuration data by calling the extension on a local host. (correct answer)
  • CUse the AWS X-Ray SDK to call the AWS AppConfig APIs. Retrieve the configuration file at runtime.
  • DMigrate the configuration file to a Lambda deployment package. Read the file from the file system at runtime.
Reveal answer & explanation
Correct answer: B

The correct answer is B. Option B: Configure the AWS AppConfig Agent Lambda extension. Access the dynamic configuration data by calling the extension on a local host.

Explanation

AWS Lambda runs code without provisioning servers and scales automatically, which minimizes operational overhead. AWS Config tracks resource configuration changes and evaluates compliance. This option needs the least custom development effort.

DVA-C02 Question 414

Single page →
Topic 1 · Question 414

A developer has AWS Lambda functions that need to access a company's internal data science libraries and reference data. Separate teams manage the libraries and the data. The teams must be able to update and upload new data independently. The Lambda functions are connected to the company's central VPC. Which solution will provide the Lambda functions with access to the libraries and data?

  • AAttach an Amazon Elastic Block Store (Amazon EBS) volume to the Lambda functions by using EBS Multi-Attach in the central VPC. Update the Lambda function execution roles to give the functions to access the EBS volume. Update the Lambda function code to reference the files in the EBS volume.
  • BCompress the libraries and reference data in a Lambda /tmp folder. Update the Lambda function code to reference the files in the /tmp folder.
  • CSet up an Amazon Elastic File System (Amazon EFS) file system with mount targets in the central VPConfigure the Lambda functions to mount the EFS file system. Update the Lambda function execution roles to give the functions to access the EFS file system. (correct answer)
  • DSet up an Amazon FSx for Windows File Server file system with mount targets in the central VPC. Configure the Lambda functions to mount the Amazon FSx file system. Update the Lambda function execution roles to give the functions to access the Amazon FSx file system.
Reveal answer & explanation
Correct answer: C

The correct answer is C. Option C: Set up an Amazon Elastic File System (Amazon EFS) file system with mount targets in the central VPConfigure the Lambda functions to mount the EFS file system. Update the Lambda function execution roles to give the fun...

Explanation

AWS Lambda runs code without provisioning servers and scales automatically, which minimizes operational overhead. Amazon EFS is a shared, elastic NFS file system that multiple instances can mount concurrently across AZs. AWS Config tracks resource configuration changes and evaluates compliance.

DVA-C02 Question 415

Single page →
Topic 1 · Question 415

A company has an application that uses an AWS Lambda function to consume messages from an Amazon Simple Queue Service (Amazon SQS) queue. The SQS queue is configured with a dead-letter queue. Due to a defect in the application, AWS Lambda failed to process some messages. A developer fixed the bug and wants to process the failed messages again. How should the developer resolve this issue?

  • AUse the SendMessageBatch API to send messages from the dead-letter queue to the original SQS queue.
  • BUse the ChangeMessageVisibility API to configure messages in the dead-letter queue to be visible in the original SQS queue.
  • CUse the StartMessageMoveTask API to move messages from the dead-letter queue to the original SQS queue. (correct answer)
  • DUse the PurgeQueue API to remove messages from the dead-letter queue and return the messages to the original SQS queue.
Reveal answer & explanation
Correct answer: C

The correct answer is C. Option C: Use the StartMessageMoveTask API to move messages from the dead-letter queue to the original SQS queue.

Explanation

Amazon SQS is a fully managed message queue that decouples components and absorbs traffic spikes.

DVA-C02 Question 416

Single page →
Topic 1 · Question 416

A developer is working on an application that will be deployed on AWS. The developer needs to test and debug the code locally. The code is packaged and stored in an Amazon S3 bucket. How can the developer test and debug the code locally with the LEAST amount of configuration?

  • ACreate an application and a deployment group in AWS CodeDeploy. For the compute platform, specify the local machine as the individual instance for the deployment. For the repository type, specify that the application is stored in Amazon S3. Start the deployment to test on the local machine.
  • BCreate a repository in AWS CodeArtifact. Publish the application code package to the repository. Before deployment, create an upstream repository to test and validate the code.
  • CCreate a build project in AWS CodeBuild. In AWS CodePipeline, add a CodeBuild test action by adding a stage and an action. For the action provider, specify a CodeBuild test and the build project. View the build log to see the test results.
  • DInstall the AWS CodeDeploy agent locally to validate the deployment package. Run the codedeploy-local command. Specify the S3 bucket where the code package is located by using the --bundle-location option. (correct answer)
Reveal answer & explanation
Correct answer: D

The correct answer is D. Option D: Install the AWS CodeDeploy agent locally to validate the deployment package. Run the codedeploy-local command. Specify the S3 bucket where the code package is located by using the --bundle-location option.

Explanation

Amazon S3 provides durable, scalable object storage that is fully managed. AWS CodeDeploy automates application deployments to compute services.

DVA-C02 Question 417

Single page →
Topic 1 · Question 417

A developer is creating an application on Amazon Elastic Container Service (Amazon ECS). The developer needs to configure the application parameters. The developer must configure limits for the application's maximum number of simultaneous connections and maximum number of transactions per second. The maximum number of connections and transactions can change in the future. The developer needs a solution that can automatically deploy these changes to the application, as needed, without causing downtime. Which solution will meet these requirements?

  • AMake the configuration changes for the application. Use AWS CodeDeploy to create a deployment configuration. Specify an in-place deployment to deploy the changes.
  • BBootstrap the application to use the AWS Cloud Development Kit (AWS CDK) and make the configuration changes. Specify the ECSCanary10Percent15Minutes launch type in the properties section of the ECS resource. Deploy the application by using the AWS CDK to implement the changes.
  • CInstall the AWS AppConfig agent on Amazon ECS. Configure an IAM role with access to AWS AppConfig. Make the deployment changes by using AWS AppConfig. Specify Canary10Percent20Minutes as the deployment strategy. (correct answer)
  • DCreate an AWS Lambda function to make the configuration changes. Create an Amazon CloudWatch alarm that monitors the Lambda function every 5 minutes to check if the Lambda function has been updated. When the Lambda function is updated, deploy the changes by using AWS CodeDeploy.
Reveal answer & explanation
Correct answer: C

The correct answer is C. Option C: Install the AWS AppConfig agent on Amazon ECS. Configure an IAM role with access to AWS AppConfig. Make the deployment changes by using AWS AppConfig. Specify Canary10Percent20Minutes as the deployment strategy.

Explanation

Amazon ECS orchestrates containers and integrates natively with AWS networking and IAM. An IAM role grants temporary, least-privilege permissions to AWS resources without long-term credentials. AWS IAM controls authenticated and authorized access to AWS resources with fine-grained policies.

DVA-C02 Question 418

Single page →
Topic 1 · Question 418

A developer has built an application running on AWS Lambda using AWS Serverless Application Model (AWS SAM). What is the correct sequence of steps to successfully deploy the application?

  • A1. Build the SAM template in Amazon EC2. 2. Package the SAM template to Amazon EBS storage. 3. Deploy the SAM template from Amazon EBS.
  • B1. Build the SAM template locally. 2. Package the SAM template onto Amazon S3. 3. Deploy the SAM template from Amazon S3. (correct answer)
  • C1. Build the SAM template locally. 2. Deploy the SAM template from Amazon S3. 3. Package the SAM template for use.
  • D1. Build the SAM template locally. 2. Package the SAM template from AWS CodeCommit. 3. Deploy the SAM template to CodeCommit.
Reveal answer & explanation
Correct answer: B

The correct answer is B. Option B: 1. Build the SAM template locally. 2. Package the SAM template onto Amazon S3. 3. Deploy the SAM template from Amazon S3.

Explanation

Amazon S3 provides durable, scalable object storage that is fully managed.

DVA-C02 Question 419

Single page →
Topic 1 · Question 419

A developer needs to deploy the code for a new application on an AWS Lambda function. The application needs a dependency file that is 500 MB to run the business logic. Which solution will meet these requirements?

  • ACompress the application code and dependencies into a .zip file. Directly upload the .zip file as a deployment package for the Lambda function instead of copying the code.
  • BCompress the application code and dependencies into a .zip file. Upload the .zip file to an Amazon S3 bucket. Configure the Lambda function to run the code from the .zip file in the S3 bucket.
  • CPackage the application code and dependencies into a container image. Upload the image to an Amazon S3 bucket. Configure the Lambda function to run the code in the image.
  • DPackage the application code and dependencies into a container image. Push the image to an Amazon Elastic Container Registry (Amazon ECR) repository. Deploy the image to the Lambda function. (correct answer)
Reveal answer & explanation
Correct answer: D

The correct answer is D. Option D: Package the application code and dependencies into a container image. Push the image to an Amazon Elastic Container Registry (Amazon ECR) repository. Deploy the image to the Lambda function.

Explanation

AWS Lambda runs code without provisioning servers and scales automatically, which minimizes operational overhead.

DVA-C02 Question 420

Single page →
Topic 1 · Question 420

A company is developing a publicly accessible single-page application. The application makes calls from a client web browser to backend services to provide a user interface to customers. The application depends on a third-party web service exposed as an HTTP API. The web client must provide an API key to the third-party web service by using the HTTP header as part of the HTTP request. The company's API key must not be exposed to the users of the web application. Which solution will meet these requirements MOST cost-effectively?

  • AUse Amazon API Gateway to create a private REST API. Create an HTTP integration to integrate with the third-party HTTP API. Add the company’s API key to the HTTP headers list of the integration request configuration.
  • BUse Amazon API Gateway to create a private REST API. Create an AWS Lambda proxy integration. Make calls to the third-party HTTP API from the Lambda function. Pass the company's API key as an HTTP request header.
  • CUse Amazon API Gateway to create a REST API. Create an HTTP integration to integrate with the third-party HTTP API. Add the company's API key to the HTTP headers list of the integration request configuration. (correct answer)
  • DUse Amazon API Gateway to create a REST API. Create an AWS Lambda proxy integration. Make calls to the third-party HTTP API from the Lambda function. Pass the company's API key as an HTTP request header.
Reveal answer & explanation
Correct answer: C

The correct answer is C. Option C: Use Amazon API Gateway to create a REST API. Create an HTTP integration to integrate with the third-party HTTP API. Add the company's API key to the HTTP headers list of the integration request configuration.

Explanation

Amazon API Gateway is a fully managed front door for creating and securing APIs at scale. AWS Config tracks resource configuration changes and evaluates compliance. This option delivers the requirement at the lowest cost.

Showing questions 401–420 of 557 · Page 21 of 28