A company experienced partial downtime during the last deployment of a new application. AWS Elastic Beanstalk split the environment’s Amazon EC2 instances into batches and deployed a new version one batch at a time after taking them out of service. Therefore, full capacity was not maintained during deployment.
The developer plans to release a new version of the application, and is looking for a policy that will maintain full capacity and minimize the impact of the failed deployment.
Which deployment policy should the developer use?

A. Immutable
B. All at Once
C. Rolling
D. Rolling with an Additional Batch

An application contains two components: one component to handle HTTP requests, and another component to handle background processing tasks. Each component must scale independently. The developer wants to deploy this application using AWS Elastic Beanstalk.
How should this application be deployed, based on these requirements?

A. Deploy the application in a single Elastic Beanstalk environment.
B. Deploy each component in a separate Elastic Beanstalk environment.
C. Use multiple Elastic Beanstalk environments for the HTTP component, but one environment for the background task component.
D. Use multiple Elastic Beanstalk environments for the background task component, but one environment for the HTTP component.

A developer tested an application locally and then deployed it to AWS Lambda. While testing the application remotely, the Lambda function fails with an access denied message.
How can this issue be addressed?

A. Update the Lambda function's execution role to include the missing permissions.
B. Update the Lambda function's resource policy to include the missing permissions.
C. Include an IAM policy document at the root of the deployment package and redeploy the Lambda function.
D. Redeploy the Lambda function using an account with access to the AdministratorAccess policy.

A development team uses AWS Elastic Beanstalk to deploy a Java-based web application. The team wants to ensure that the changes to the source code and the configuration are always deployed on new instances. The team configures the Elastic Beanstalk environment to use immutable updates. However, an error occurs the first time a change is deployed with the new update policy.
What is the MOST likely cause of this issue?

A. Immutable updates are not supported for Java-based applications.
B. The account has reached its on-demand instance limit.
C. Immutable updates are only supported for m4.large and larger instance types.
D. The developer must also modify the .ebextensions/immutable-updates.config file to enable immutable updates.

A large company has its application components distributed across multiple AWS accounts. The company needs to collect and visualize trace data across these accounts.
What should be used to meet these requirements?

A. AWS X-Ray
B. Amazon CloudWatch
C. Amazon VPC flow logs
D. Amazon Elasticsearch Service

A developer works in an environment with multiple AWS accounts that have AWS Lambda functions processing the same 100 KB payloads. The developer wants to centralize the point of origin of the payloads to one account and have all the Lambda functions be invoked whenever the initiating event occurs in the parent account.
How can the developer design the workflow in the MOST efficient way, so all the multi-account Lambda functions get invoked when the event occurs?

A. Create a Lambda function in the parent account and use cross-account IAM roles with the AWS Security Token Service (AWS STS) AssumeRole API call to make AWS Lambda invoke the API call to invoke all the cross-account Lambda functions.
B. Subscribe all the multi-account Lambda functions to an Amazon SNS topic and make a SNS Publish API call with the payload to the SNS topic.
C. Set up an Amazon SQS queue with the queue policy permitting the ReceiveMessage action for multi-account Lambda functions. Then send the payload to the SQS queue using the sqs:SendMessage permission and poll the queue using multi-account Lambda functions.
D. Use a worker on an Amazon EC2 instance to poll for the payload event. Invoke all Lambda functions using the Lambda Invoke API after using cross-account IAM roles with the AWS Security Token Service (AWS STS) AssumeRole API call.

A company is running a custom application on a set of on-premises Linux servers that are accessed using Amazon API Gateway AWS X-Ray tracing has been enabled on the API test stage.
How can a developer enable X-Ray tracing on the on-premises servers with the LEAST amount of configuration?

A. Install and run the X-Ray SDK on the on-premises servers to capture and relay the data to the X-Ray service.
B. Install and run the X-Ray daemon on the on-premises servers to capture and relay the data to the X-Ray service.
C. Capture incoming requests on-premises and configure an AWS Lambda function to pull, process, and relay relevant data to X-Ray using the PutTraceSegments API call.
D. Capture incoming requests on-premises and configure an AWS Lambda function to pull, process, and relay relevant data to X-Ray using the PutTelemetryRecords API call.

A developer is creating a role to access Amazon S3 buckets. To create the role, the developer uses the AWS CLI create-role command.
Which policy should be added to allow the Amazon EC2 service to assume the role?

A. Managed policy
B. Trust policy
C. Inline policy
D. Service control policy (SCP)

A company is developing a new web application in Python. A developer must deploy the application using AWS Elastic Beanstalk from the AWS Management Console. The developer creates an Elastic Beanstalk source bundle to upload using the console.
Which of the following are requirements when creating the source bundle? (Choose two.)

A. The source bundle must include the ebextensions.yaml file
B. The source bundle must not include a top-level directory
C. The source bundle must be compressed with any required dependencies in a top-level parent folder
D. The source bundle must be created as a single .zip or .war file
E. The source bundle must be uploaded into Amazon EFS

A developer has created a REST API using Amazon API Gateway. The developer wants to log who and how each caller accesses the API. The developer also wants to control how long the logs are kept.
What should the developer do to meet these requirements?

A. Enable API Gateway execution logging. Delete old logs using API Gateway retention settings.
B. Enable API Gateway access logs. Use Amazon CloudWatch retention settings to delete old logs.
C. Enable detailed Amazon CloudWatch metrics. Delete old logs with a recurring AWS Lambda function.
D. Create and use API Gateway usage plans. Delete old logs with a recurring AWS Lambda function.