A company is planning to use AWS CodeDeploy to deploy an application to Amazon Elastic Container Service (Amazon ECS). During the deployment of a new version of the application, the company initially must expose only 10% of live traffic to the new version of the deployed application. Then, after 15 minutes elapse, the company must route all the remaining live traffic to the new version of the deployed application. Which CodeDeploy predefined configuration will meet these requirements?

CodeDeployDefault.ECSCanary10Percent15Minutes

CodeDeployDefault.LambdaCanary10Percent5Minutes

CodeDeployDefault.LambdaCanary10Percent15Minutes

CodeDeployDefault.ECSLinear10PercentEvery1 Minutes

A developer notices timeouts from the AWS CLI when the developer runs list commands. What should the developer do to avoid these timeouts?

Use the --page-size parameter to request a smaller number of items.

Use shorthand syntax to separate the list by a single space.

Use the yaml-stream output for faster viewing of large datasets.

Use quotation marks around strings to enclose data structure.

A company has moved a legacy on-premises application to AWS by performing a lift and shift. The application exposes a REST API that can be used to retrieve billing information. The application is running on a single Amazon EC2 instance. The application code cannot support concurrent invocations. Many clients access the API, and the company adds new clients all the time. A developer is concerned that the application might become overwhelmed by too many requests. The developer needs to limit the number of requests to the API for all current and future clients. The developer must not change the API, the application, or the client code. What should the developer do to meet these requirements?

Place the API behind an Amazon API Gateway API. Set the server-side throttling limits.

Place the API behind a Network Load Balancer. Set the target group throttling limits.

Place the API behind an Application Load Balancer. Set the target group throttling limits.

Place the API behind an Amazon API Gateway API. Set the per-client throttling limits.

An ecommerce company wants to redirect users to a country-specific website when they enter the example.com website. For example, the company wants to redirect United States users to example.com/us/ and wants to redirect French users to example.com/fr/ . The web application is using Amazon CloudFront and an Application Load Balancer with an Amazon Elastic Container Service (Amazon ECS) cluster. The application's domain name resolution is configured in an Amazon Route 53 public hosted zone. Which solution will meet these requirements with the LEAST operational effort?

Create a CloudFront function to inspect the CloudFront-Viewer-Country header and return redirect responses to different URLs based on user location.

Update the routing policy for the application's Route 53 record to specify geolocation routing. Configure listener rules based on a unique alias location to redirect requests to the correct URLs by country.

On the ECS web server configuration, use a GeoIP database to look up the requested IP address and redirect requests to the correct URLs by country.

Use AWS WAF to determine the country of origin. Create an AWS WAF custom rule with a geographic match condition to redirect traffic from each country to the correct URL.

A developer has created a web API that uses Amazon Elastic Container Service (Amazon ECS) and an Application Load Balancer (ALB). An Amazon CloudFront distribution uses the API as an origin for web clients. The application has received millions of requests with a JSON Web Token (JWT) that is not valid in the authorization header. The developer has scaled out the application to handle the unauthenticated requests. What should the developer do to reduce the number of unauthenticated requests to the API?

Create a CloudFront function for the distribution Use the crypto module in the function to validate the JWT.

Add a request routing rule to the ALB to return a 401 status code if the authorization header is missing.

Add a container to the ECS task definition to validate JWTs Set the new container as a dependency of the application container.

Add a custom authorizer for AWS Lambda to the CloudFront distribution to validate the JWT.

A developer is creating a mobile application that will not require users to log in. What is the MOST efficient method to grant users access to AWS resources?

Use Amazon Cognito to associate unauthenticated users with an IAM role that has limited access to resources.

Use an identity provider to securely authenticate with the application.

Create an AWS Lambda function to create an IAM user when a user accesses the application.

Create credentials using AWS KMS and apply these credentials to users when using the application.

A developer has created on AWS Lambda function tool uses 15 MB of memory. When the developer runs the code natively on a laptop that has 4 cores, the function runs within 100 ms. When the developer deploys the code as a Lambda function with 128 MB of memory, the first run takes 3 seconds. Subsequent runs take more than 500 ms to finish. The developer needs to improve the performance of the Lambda function so that the function runs consistently in less than 100 ms, excluding the initial startup time. Which solution will meet this requirement?

Increase the memory of the Lambda function.

Increase the reserved concurrency of the Lambda function.

Increase the provisioned concurrency of the Lambda function.

Repackage the Lambda function as a container. Redeploy the function.

A company is planning to use AWS CodeDeploy to deploy an application to AWS Lambda. During the deployment of a new version of the application, the company initially must expose only 10% of live traffic to the new version of the deployed application. Then, every 10 minutes, the company must route another 10% of live traffic to the new version of the deployed application until all live traffic is routed to the new version. Which CodeDeploy predefined configuration will meet these requirements?

CodeDeployDefault.LambdaLinear10PercentEvery10Minutes

CodeDeployDefault.LambdaCanary10Percent10Minutes

CodeDeployDefault.ECSLinear10PercentEvery3Minutes

A developer has built an application that inserts data into an Amazon DynamoDB table. The table is configured to use provisioned capacity. The application is deployed on a burstable nano Amazon EC2 Instance. The application logs show that the application has been failing because of a ProvisionedThroughputExceedException error. Which actions should the developer take to resolve this issue? (Choose two.)

Reduce the frequency of requests to DynamoDB by implement ng exponential backoff.

Change the capacity mode of the DynamoDB table from provisioned to on-demand.

Move The application to a larger EC instance.

Increase the number or read capacity units (RCUs) that are provisioned for the DynamoDB table.

Increase the frequency of requests to DynamoDB by decreasing the retry delay.

A developer is deploying on application on Amazon EC2 instances that run in Account A. In certain cases, this application needs to read data from a private Amazon S3 bucket in Account B. The developer must provide the application access to the S3 bucket without exposing the S3 bucket to anyone else. Which combination of actions should the developer take to meet these requirements? (Choose two.)

Update the instance profile IAM role in Account A with S3 read permissions.

Configure the bucket policy in Account B to grant permissions to the instance profile role.

Create an IAM role with S3 read permissions in Account B.

Make the S3 bucket public with limited access for Account A.

Add a trust policy that allows s3:Get* permissions to the IAM rote in Account B.

A developer at a company recently created a serverless application to process and show data from business reports. The application's user interface (UI) allows users to select and start processing the flies. The UI displays a message when the result is available to view. The application uses AWS Step Functions with AWS Lambda functions to process the files. The developer used Amazon API Gateway and Lambda functions to create an API to support the UI. The company's UI team reports that the request to process a file s often returning timeout errors because of the size or complexity of the files. The UI team wants the API to provide an immediate response so that the UI can display a message while the files are being processed. The backend process that is invoked by the API needs to send an email message when the report processing is complete. What should the developer do to configure the API to meet these requirements?

Change the API Gateway route to add an X-Amz-Invocation-Type header with a static value of 'Event' in the integration request. Deploy the API Gateway stage to apply the changes.

Change the configuration of the Lambda function that implements the request to process a file. Configure the maximum age of the event so that the Lambda function will run asynchronously.

Change the API Gateway timeout value to match the Lambda function timeout value. Deploy the API Gateway stage to apply the changes.

Change the API Gateway route to add an X-Amz-Target header with a static value of 'Async' in the integration request. Deploy the API Gateway stage to apply the changes.

A developer is designing a serverless application for an ecommerce website. An Amazon API Gateway API exposes AWS Lambda functions for billing, payment, and user operations. The website features shopping carts for the users. The shopping carts must be stored for extended periods of time and will be retrieved frequently by the front-end application. The load on the application will vary significantly based on the time of day and the promotional sales that are offered on the website. The application must be able to scale automatically to meet these changing demands. Which solution will meet these requirements?

Store the data objects in Amazon DynamoDB tables. Cache the data objects by using DynamoDB Accelerator (DAX).

Store the data objects on an Amazon RDS DB instance. Cache the data objects in memory by using Amazon ElastiCache.

Store the data objects on Amazon EC2 instances behind an Application Load Balancer. Use session affinity (sticky sessions) for each user's shopping cart.

Store the data objects in Amazon S3 buckets. Cache the data objects by using Amazon CloudFront with the maximum TTL.

A company is migrating its on-premises database to Amazon RDS for MySQL. The company has read-heavy workloads, and wants to make sure it re-factors its code to achieve optimum read performance for its queries. How can this objective be met?

Add a connection string to use an RDS read replica for read queries.

Add database retries to effectively use RDS with vertical scaling.

Use RDS with multi-AZ deployment.

Add a connection string to use a read replica on an EC2 instance.

An application running on Amazon EC2 opens connections to an Amazon RDS SQL Server database. The developer does not want to store the user name and password for the database in the code. The developer would also like to automatically rotate the credentials. What is the MOST secure way to store and access the database credentials?

Use AWS Secrets Manager to store the credentials. Retrieve the credentials from Secrets Manager as needed.

Create an IAM role that has permissions to access the database. Attach the role to the EC2 instance.

Store the credentials in an encrypted text file in an Amazon S3 bucket. Configure the EC2 instance's user data to download the credentials from Amazon S3 as the instance boots.

Store the user name and password credentials directly in the source code. No further action is needed because the source code is stored in a private repository.

A developer received the following error message during an AWS CloudFormation deployment: DELETE_FAILED (The following resource(s) failed to delete: [ASGInstanceRolel2345678].) Which action should the developer take to resolve this error?

Modify the CloudFormation template to retain the ASGInstanceRolel2345678 resource. Then manually delete the resource after deployment.

Contact AWS Support to report an issue with the Auto Scaling Groups (ASG) service.

Add a DependsOn attribute to the ASGInstanceRole12345678 resource in the CloudFormation template. Then delete the stack.

Add a force parameter when calling CloudFormation with the role-arn of ASGInstanceRolel2345678.

An application runs on multiple EC2 instances behind an ELB. Where is the session data best written so that it can be served reliably across multiple requests?

Write data to Amazon ElastiCache.

Write data to Amazon Elastic Block Store.

Write data to Amazon EC2 Instance Store.

Write data to the root filesystem.

A software company is using AWS CodeBuild to build an application. The buildspec runs the application build and creates a Docker image that contains the application. The company needs to push the Docker image to Amazon Elastic Container Registry (Amazon ECR) only upon the completion of each successful build. Which solution meets these requirements?

Change the buildspec by adding a post_build phase that uses the commands block to push the Docker image.

Change the buildspec by adding a post_build phase that uses the finally block to push the Docker image.

Specify the Docker image in the buildspec's artifacts sequence with an action to push the image.

Use a batch build to define a build matrix. Use the batch build to push the Docker image.

A company is using Amazon RDS as the backend database for its application. After a recent marketing campaign, a surge of read requests to the database increased the latency of data retrieval from the database. The company has decided to implement a caching layer in front of the database. The cached content must be encrypted and must be highly available. Which solution will meet these requirements?

Amazon ElastiCache for Redis in cluster mode

Amazon ElastiCache for Memcached

Amazon DynamoDB Accelerator (DAX)

Given the source code for an AWS Lambda function in the local file store.py containing a handler function called get_store and the following AWS CloudFormation template: What should be done to prepare the template so that it can be deployed using the AWS CLI command aws cloudformation deploy?

Use aws cloudformation package to upload the source code to an Amazon S3 bucket and produce a modified CloudFormation template.

Use aws cloudformation compile to base64 encode and embed the source file into a modified CloudFormation template.

Use aws lambda zip to package the source file together with the CloudFormation template and deploy the resulting zip archive.

Use aws serverless create-package to embed the source file directly into the existing CloudFormation template.

A company is developing a report implemented using AWS Step Functions. Amazon CloudWatch shows errors in the Step Functions task state machine. To troubleshoot each task, the state input needs to be included along with the error message in the state output. Which coding practice can preserve both the original input and the error for the state?

Use ResultPath in a Catch statement to include the error with the original input.

Use InputPath in a Catch statement and set the value to null.

Use ErrorEquals in a Retry statement to include the error with the original input.

Use OutputPath in a Retry statement and set the value to $.

A developer is receiving HTTP 400: ThrottlingException errors intermittently when calling the Amazon CloudWatch API. When a call fails, no data is retrieved. What best practice should first be applied to address this issue?

Retry the call with exponential backoff.

Contact AWS Support for a limit increase.

Use the AWS CLI to get the metrics.

Analyze the applications and remove the API call.

A company has an online order website that uses Amazon DynamoDB to store item inventory. A sample of the inventory object is as follows: A developer needs to reduce all inventory prices by 100 as long as the resulting price would not be less than 500. What should the developer do to make this change with the LEAST number of calls to DynamoDB?

Perform a DynamoDB UpdateItem operation with a condition expression of "Price >= 600".

Perform a DynamoDB Query operation with the Id. If the price is >= 600, perform an UpdateItem operation to update the price.

Perform a DynamoDB UpdateItem operation with a condition expression of "ProductCategory IN ({"S": "Sporting Goods"}) and Price 600".

Perform a DynamoDB UpdateItem operation with a condition expression of "MIN Price = 500".

A company is using an AWS Lambda function to process records from an Amazon Kinesis data stream. The company recently observed slow processing of the records. A developer notices that the iterator age metric for the function is increasing and that the Lambda run duration is constantly above normal. Which actions should the developer take to increase the processing speed? (Choose two.)

Increase the number of shards of the Kinesis data stream.

Increase the memory that is allocated to the Lambda function.

Decrease the timeout of the Lambda function.

Decrease the number of shards of the Kinesis data stream.

Increase the timeout of the Lambda function.

A developer is making changes to a custom application that uses AWS Elastic Beanstalk. Which solutions will update the Elastic Beanstalk environment with the new application version after the developer completes the changes? (Choose two.)

Package the application code into a .zip file. Use the AWS Management Console to upload the zip file and deploy the packaged application.

Package the application code into a .zip file. Use the AWS CLI to create a new application version from the .zip file and to update the environment.

Package the application code into a .tar file. Use the AWS Management Console to create a new application version from the .tar file. Update the environment by using the AWS CLI.

Package the application code into a .tar file. Use the AWS Management Console to upload the .tar file and deploy the packaged application.

Package the application code into a .zip file. Use the AWS Management Console to create a new application version from the .zip file. Rebuild the environment by using the AWS CLI.

A company has an application where reading objects from Amazon S3 is based on the type of user. The user types are registered user and guest user. The company has 25,000 users and is growing. Information is pulled from an S3 bucket depending on the user type. Which approaches are recommended to provide access to both user types? (Choose two.)

Use Amazon Cognito to provide access using authenticated and unauthenticated roles.

Use the AWS IAM service and let the application assume the different roles using the AWS Security Token Service (AWS STS) AssumeRole action depending on the type of user and provide read access to Amazon S3 using the assumed role.

Provide a different access key and secret access key in the application code for registered users and guest users to provide read access to the objects.

Use S3 bucket policies to restrict read access to specific IAM users.

Create a new IAM user for each user and grant read access.

A developer is writing an application to analyze the traffic to a fleet of Amazon EC2 instances. The EC2 instances run behind a public Application Load Balancer (ALB). An HTTP server runs on each of the EC2 instances, logging all requests to a log file. The developer wants to capture the client public IP addresses. The developer analyzes the log files and notices only the IP address of the ALB. What must the developer do to capture the client public IP addresses in the log file?

Add an X-Forwarded-For header to the HTTP server log configuration file.

Add a Host header to the HTTP server log configuration file.

Install the Amazon CloudWatch Logs agent on each EC2 instance. Configure the agent to write to the log file.

Install the AWS X-Ray daemon on each EC2 instance. Configure the daemon to write to the log file.

A developer is writing a new AWS Serverless Application Model (AWS SAM) template with a new AWS Lambda function. The Lambda function runs complex code. The developer wants to test the Lambda function with more CPU power. What should the developer do to meet this requirement?

Increase the runtime engine version.

Increase the number of Lambda layers.

A developer uses a single AWS CloudFormation template to configure the test environment and the production environment for an application. The developer handles environment-specific requirements in the CloudFormation template. The developer decides to update the Amazon EC2 Auto Scaling launch template with new Amazon Machine Images (AMIs) for each environment. The CloudFormation update for the new AMIs is successful in the test environment, but the update fails in the production environment. What are the possible causes of the CloudFormation update failure in the production environment? (Choose two.)

The new AMIs do not fulfill the specified conditions in the CloudFormation template.

CloudFormation does not have sufficient IAM permissions to make the changes.

The service quota for the number of EC2 vCPUs in the AWS Region has been exceeded.

The security group that is specified in the CloudFormation template does not exist.

CloudFormation does not recognize the template change as an update.

A developer is creating a serverless web application and maintains different branches of code. The developer wants to avoid updating the Amazon API Gateway target endpoint each time a new code push is performed. What solution would allow the developer to perform a code push efficiently, without the need to update the API Gateway?

Create aliases and versions in AWS Lambda.

Associate different AWS Lambda functions to an API Gateway target endpoint.

Create different stages in API Gateway. then associate API Gateway with AWS Lambda.

Tag the AWS Lambda functions with different names.

A developer needs to deploy an application running on AWS Fargate using Amazon ECS. The application has environment variables that must be passed to a container for the application to initialize. How should the environment variables be passed to the container?

Define an array that includes the environment variables under the environment parameter within the task definition.

Define an array that includes the environment variables under the environment parameter within the service definition.

Define an array that includes the environment variables under the entryPoint parameter within the task definition.

Define an array that includes the environment variables under the entryPoint parameter within the service definition.

A developer manages an application that interacts with Amazon RDS. After observing slow performance with read queries, the developer implements Amazon ElastiCache to update the cache immediately following the primary database update. What will be the result of this approach to caching?

The cache will become large and expensive because the infrequently requested data is also written to the cache.

Caching will increase the load on the database instance because the cache is updated for every database update.

Caching will slow performance of the read queries because the cache is updated when the cache cannot find the requested data.

Overhead will be added to the initial response time because the cache is updated only after a cache miss.

A developer has a stateful web server on-premises that is being migrated to AWS. The developer must have greater elasticity in the new design. How should the developer re-factor the application to make it more elastic? (Choose two.)

Store session state data in an Amazon DynamoDB table.

Use an ELB with an Auto Scaling group.

Use pessimistic concurrency on Amazon DynamoDB.

Use Amazon CloudFront with an Auto Scaling group.

Use Amazon CloudFront with an AWS Web Application Firewall.

A developer has a legacy application that is hosted on-premises. Other applications hosted on AWS depend on the on-premises application for proper functioning. In case of any application errors, the developer wants to be able to use Amazon CloudWatch to monitor and troubleshoot all applications from one place. How can the developer accomplish this?

Download the CloudWatch agent to the on-premises server. Configure the agent to use IAM user credentials with permissions for CloudWatch.

Install an AWS SDK on the on-premises server to automatically send logs to CloudWatch.

Upload log files from the on-premises server to Amazon S3 and have CloudWatch read the files.

Upload log files from the on-premises server to an Amazon EC2 instance and have the instance forward the logs to CloudWatch.

A developer is designing a serverless application with two AWS Lambda functions to process photos. One Lambda function stores objects in an Amazon S3 bucket and stores the associated metadata in an Amazon DynamoDB table. The other Lambda function fetches the objects from the S3 bucket by using the metadata from the DynamoDB table. Both Lambda functions use the same Python library to perform complex computations and are approaching the quota for the maximum size of zipped deployment packages. What should the developer do to reduce the size of the Lambda deployment packages with the LEAST operational overhead?

Create a Lambda layer with the required Python library. Use the Lambda layer in both Lambda functions.

Package each Python library in its own .zip file archive. Deploy each Lambda function with its own copy of the library.

Combine the two Lambda functions into one Lambda function. Deploy the Lambda function as a single .zip file archive.

Download the Python library to an S3 bucket. Program the Lambda functions to reference the object URLs.

A developer is adding a feature to a client-side application so that users can upload videos to an Amazon S3 bucket. What is the MOST secure way to give the application the ability to write files to the S3 bucket?

Configure the API layer of the application to have a new endpoint that creates signed URLs that allow an object to be put into the S3 bucket. Generate a presigned URL through this API call in the client application. Upload the video by using the signed URL.

Update the S3 bucket policy to allow public write access. Allow any user to upload videos by removing the need to handle user authentication within the client- side application.

Create a new IAM policy and a corresponding IAM user with permissions to write to the S3 bucket. Store the key and the secret for the user in the application code. Use the key to authenticate the video uploads.

Generate a new IAM key and a corresponding secret by using the AWS account root user credentials. Store the key and the secret for the user in the application code. Use the key to authenticate the video uploads.

A company is building an application for stock trading. The application needs sub-millisecond latency for processing trade requests. The company uses Amazon DynamoDB to store all the trading data that is used to process each trading request. A development team performs load testing on the application and finds that the data retrieval time is higher than expected. The development team needs a solution that reduces the data retrieval time with the least possible effort. Which solution meets these requirements?

Use DynamoDB Accelerator (DAX) to cache the trading data.

Add local secondary indexes (LSIs) for the trading data.

Store the trading data in Amazon S3, and use S3 Transfer Acceleration.

Add retries with exponential backoff for DynamoDB queries.

A developer needs to build and deploy a serverless application that has an API that mobile clients will use. The API will use Amazon DynamoDB and Amazon OpenSearch Service (Amazon Elasticsearch Service) as data sources. Responses that are sent to the clients will contain aggregated data from both data sources. The developer must minimize the number of API endpoints and must minimize the number of API calls that are required to retrieve the necessary data. Which solution should the developer use to meet these requirements?

GraphQL API on an Amazon EC2 instance

REST API on AWS Elastic Beanstalk

Test2A

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A developer needs to use the AWS CLI on an on-premises development server temporarily to access AWS services while performing maintenance. The developer needs to authenticate to AWS with their identity for several hours.
What is the MOST secure way to call AWS CLI commands with the developer's IAM identity?

Specify the developer's IAM access key ID and secret access key as parameters for each CLI command

Run the aws configure CLI command. Provide the developer's IAM access key ID and secret access key.

Specify the developer's IAM profile as a parameter for each CLI command.

Run the get-session-token CLI command with the developer's IAM user. Use the returned credentials to call the CLI

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An AWS Lambda function accesses two Amazon DynamoDB tables. A developer wants to improve the performance of the Lambda function by identifying bottlenecks in the function.
How can the developer inspect the timing of the DynamoDB API calls?

Add DynamoDB as an event source to the Lambda function. View the performance with Amazon CloudWatch metrics

Place an Application Load Balancer (ALB) in front of the two DynamoDB tables. Inspect the ALB logs

Limit Lambda to no more than five concurrent invocations. Monitor from the Lambda console.

Enable AWS X-Ray tracing for the function. View the traces from the X-Ray service.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A developer deployed an application to an Amazon EC2 instance. The application needs to know the public IPv4 address of the instance.
How can the application find this information?

Query the instance metadata from http://169.254.169.254/latest/meta-data/.

Query the instance user data from http://169.254.169.254/latest/user-data/.

Query the Amazon Machine Image (AMI) information from http://169.254 169.254/latest/meta-data/ami/.

Check the hosts file of the operating system.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A developer is designing an AWS Lambda function to perform a maintenance activity. The developer will use Amazon EventBridge (Amazon CloudWatch Events) to invoke the function on an hourly schedule. The developer wants the function to log information at different levels of detail according to the value of a log level variable. The developer must design the function so that the log level can be set without requiring a change to the function code.
Which solution will meet these requirements?

Add a custom log level parameter for the Lambda function. Set the parameter by using the Lambda console

Set the log level in a Lambda environment variable

Set the log level in the Amazon CloudWatch Logs console.

Add a custom log level parameter for the Lambda function. Set the parameter by using the AWS CLI.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A developer is creating a serverless application that uses an AWS Lambda function The developer will use AWS CloudFormation to deploy the application The application will write logs to Amazon CloudWatch Logs. The developer has created a log group in a CloudFormation template for the application to use. The developer needs to modify the CloudFormation template to make the name of the log group available to the application at runtime.
Which solution will meet this requirement?

Use the AWS::Include transform in CloudFormation to provide the log group's name to the application.

Pass the log group's name to the application in the user data section of the CloudFormation template

Use the CloudFormation template's Mappings section to specify the log group's name for the application.

Pass the log group's Amazon Resource Name (ARN) as an environment variable to the Lambda function.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A company is running an application on Amazon Elastic Container Service (Amazon ECS). When the company deploys a new version of the application, the company initially needs to expose 10% of live traffic to the new version. After a period of time, the company needs to immediately route all the remaining live traffic to the new version.
Which ECS deployment should the company use to meet these requirements?

Rolling update

Blue/green with canary

Blue/green with all at once

Blue/green with linear

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A microservices application is deployed across multiple containers in Amazon Elastic Container Service (Amazon ECS). To improve performance, a developer wants to capture trace information between the microservices and visualize the microservices architecture.
Which solution will meet these requirements?

Build the container from the amazon/aws-xray-daemon base image. Use the AWS X-Ray SDK to instrument the application.

Install the Amazon CloudWatch agent on the container image. Use the CloudWatch SDK to publish custom metrics from each of the microservices.

Install the AWS X-Ray daemon on each of the ECS instances.

Configure AWS CloudTrail data events to capture the traffic between the microservices.

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Test2A

An AWS Lambda function accesses two Amazon DynamoDB tables. A developer wants to improve the performance of the Lambda function by identifying bottlenecks in the function.How can the developer inspect the timing of the DynamoDB API calls?

A developer deployed an application to an Amazon EC2 instance. The application needs to know the public IPv4 address of the instance.How can the application find this information?

A developer notices timeouts from the AWS CLI when the developer runs list commands.What should the developer do to avoid these timeouts?

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An AWS Lambda function accesses two Amazon DynamoDB tables. A developer wants to improve the performance of the Lambda function by identifying bottlenecks in the function.
How can the developer inspect the timing of the DynamoDB API calls?

A developer deployed an application to an Amazon EC2 instance. The application needs to know the public IPv4 address of the instance.
How can the application find this information?

A developer notices timeouts from the AWS CLI when the developer runs list commands.
What should the developer do to avoid these timeouts?