A developer is building a serverless application by using AWS Serverless Application Model (AWS SAM) on multiple AWS Lambda functions.
When the application is deployed, the developer wants to shift 10% of the traffic to the new deployment of the application for the first 10 minutes after deployment. If there are no issues, all traffic must switch over to the new version.
Which change to the AWS SAM template will meet these requirements?

• A.Set the Deployment Preference Type to Canary10Percent10Minutes. Set the AutoPublishAlias property to the Lambda alias.
• B.Set the Deployment Preference Type to LinearlOPercentEvery10Minutes. Set AutoPubIishAIias property to the Lambda alias.
• C.Set the Deployment Preference Type to CanaryIOPercentIOMinutes. Set the PreTraffic and PostTraffic properties to the Lambda alias.
• D.Set the Deployment Preference Type to LinearlOPercentEveryIOMinutes. Set PreTraffic and Post Traffic properties to the Lambda alias.

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An 1AM role is attached to an Amazon EC2 instance that explicitly denies access to all Amazon S3 API actions. The EC2 instance credentials file specifies the 1AM access key and secret access key, which allow full administrative access.
Given that multiple modes of 1AM access are present for this EC2 instance, which of the following is correct?

• A.The EC2 instance will not be able to perform any S3 action on any S3 bucket.
• B.The EC2 instance will only be able to list the S3 buckets.
• C.The EC2 instance will be able to perform all actions on any S3 bucket.
• D.The EC2 instance will only be able to list the contents of one S3 bucket at a time.

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A developer runs an application that displays scores for sports games on Amazon EC2 instances. The application uses a Redis client to retrieve the scores from an Amazon ElastiCache (Redis OSS) cluster.
The developer observes increased latency during operations on the cache because of connection failures to the cluster. The developer needs to resolve the latency issues.

• A.Configure the Redis client to use an exponential backoff retry strategy to establish cache connections.
• B.Store the scores in the application's memory. Perform bulk set operations on the scores that are stored in memory.
• C.Configure the Redis client in the application to persist connections to the cluster by implementing a connection pool.
• D.Deploy more nodes in the ElastiCache cluster. Update the Redis client to discover the new nodes.

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A company has an application that consists of different microservices that run inside an AWS account. The microservices are running in containers inside a single VPC. The number of microservices is constantly increasing. A developer must create a central logging solution for application logs.

• A.Create a different Amazon CloudWatch Logs stream for each microservice.
• B.Create an AWS CloudTrail trail to log all the API calls.
• C.Configure VPC Flow Logs to track the communications between the microservices.
• D.Use AWS Cloud Map to map the interactions of the microservices.

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A developer is monitoring an application that runs on an Amazon EC2 Instance. The developer has configured a custom Amazon CloudWatch metric with data granularity of 1 second. It any issues occur, the developer wants to be notified within 30 seconds by Amazon Simple Notification Service (Amazon SNS).
What should the developer do to meet this requirement?

• A.Configure a high-resolution CloudWatch alarm.
• B.Use Amazon CloudWatch Logs Insights.
• C.Set up a custom CloudWatch dashboard.
• D.Change to a default CloudWatch metric.

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