A SysOps administrator is deploying an application on 10 Amazon EC2 instances. The application must be highly available. The instances must be placed on distinct underlying hardware.
What should the SysOps administrator do to meet these requirements?

• A.Launch the instances into a cluster placement group in a single AWS Region.
• B.Launch the instances into a partition placement group in multiple AWS Regions.
• C.Launch the instances into a spread placement group in multiple AWS Regions.
• D.Launch the instances into a spread placement group in single AWS Region

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A SysOps Administrator runs a web application that is using a microservices approach whereby different responsibilities of the application have been divided in a separate microservice running on a different Amazon EC2 instance. The administrator has been tasked with reconfiguring the infrastructure to support this approach.
How can the administrator accomplish this with the LEAST administrative overhead?

• A.Use an Application Load Balancer (ALB) and do path-based routing.
• B.Use Amazon CloudFront to rewrite the header based on the microservice and forward the request.
• C.Use a Network Load Balancer (NLB) and do path-based routing.
• D.Use Amazon CloudFront to log the URL and forward the request.

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A company stores files on 50 Amazon S3 buckets in the same AWS Region The company wants to connect to the S3 buckets securely over a private connection from its Amazon EC2 instances The company needs a solution that produces no additional cost Which solution will meet these requirements?

• A.Create an interface VPC endpoint (or each S3 bucket Attach the interface VPC endpoints to each subnet inside the VPC
• B.Create a gateway VPC endpoint lor each S3 bucket Attach the gateway VPC endpoints to each subnet inside the VPC
• C.Create one gateway VPC endpoint for all the S3 buckets Add the gateway VPC endpoint to the VPC route table
• D.Create one interface VPC endpoint for all the S3 buckets Add the interface VPC endpoint to the VPC route table

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A SysOps Administrator is managing a web application that runs on Amazon EC2 instances behind an Application Load Balancer (ALB). The instances run in an EC2 Auto Scaling group. The administrator wants to set an alarm for when all target instances associated with the ALB are unhealthy.
Which condition should be used with the alarm?

• A.AWS/ApplicationELB HealthyHostCount <= 0
• B.AWS/ApplicationELB UnhealthyHostCount >= 1
• C.AWS/EC2 StatusCheckFailed <= 0
• D.AWS/EC2 StatusCheckFailed >= 1

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A company has multiple AWS Site-to-Site VPN connections between a VPC and its branch offices. The company manages an Amazon Elasticsearch Service (Amazon ES) domain that is configured with public access. The Amazon ES domain has an open domain access policy. A SysOps administrator needs to ensure that Amazon ES can be accessed only from the branch offices while preserving existing data.
Which solution will meet these requirements?

• A.Configure an identity-based access policy on Amazon ES. Add an allow statement to the policy that includes the Amazon Resource Name (ARN) for each branch office VPN connection.
• B.Configure an IP-based domain access policy on Amazon ES. Add an allow statement to the policy that includes the private IP CIDR blocks from each branch office network.
• C.Deploy a new Amazon ES domain in private subnets in a VPC, and import a snapshot from the old domain. Create a security group that allows inbound traffic from the branch office CIDR blocks.

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