A company has an application that customers use to search for records on a website. The application's data is stored in an Amazon Aurora DB cluster. The application's usage varies by season and by day of the week.
The website's popularity is increasing, and the website is experiencing slower performance because of increased load on the DB cluster during periods of peak activity. The application logs show that the performance issues occur when users are searching for information. The same search is rarely performed multiple times.
A SysOps administrator must improve the performance of the platform by using a solution that maximizes resource efficiency.
Which solution will meet these requirements?

• A.Deploy an Amazon ElastiCache for Redis cluster in front of the DB cluster.
  Modify the application to check the cache before the application issues new queries to the database.
  Add the results of any queries to the cache.
• B.Deploy an Aurora Replica for the DB cluster.
  Modify the application to use the reader endpoint for search operations.
  Use Aurora Auto Scaling to scale the number of replicas based on load.
• C.Use Provisioned IOPS on the storage volumes that support the DB cluster to improve performance sufficiently to support the peak load on the application.
• D.Increase the instance size in the DB cluster to a size that is sufficient to support the peak load on the application.
  Use Aurora Auto Scaling to scale the instance size based on load.

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A company has a stateless application that is hosted on a fleet of 10 Amazon EC2 On-Demand Instances in an Auto Scaling group. A minimum of 6 instances are needed to meet service requirements.
Which action will maintain uptime for the application MOST cost-effectively?

• A.Update the Auto Scaling group with a minimum of 6 On-Demand Instances and a maximum of 10 On-Demand Instances.
• B.Use a Spot Fleet with an On-Demand capacity of 6 instances.
• C.Update the Auto Scaling group with a minimum of 1 On-Demand Instance and a maximum of 6 On-Demand Instances.
• D.Use a Spot Fleet with a target capacity of 6 instances.

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

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A company runs a retail website on multiple Amazon EC2 instances behind an Application Load Balancer (ALB). The company must secure traffic to the website over an HTTPS connection.
Which combination of actions should a SysOps administrator take to meet these requirements?
(Choose two.)

• A.Attach the certificate to each EC2 instance.
• B.Attach the certificate to the ALB.
• C.Create a private certificate in AWS Certificate Manager (ACM).
• D.Create a public certificate in AWS Certificate Manager (ACM).
• E.Export the certificate, and attach it to the website.

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A gaming application is deployed on four Amazon EC2 instances in a default VPC. The SysOps administrator has noticed consistently high latency in responses as data is transferred among the four instances. There is no way for the administrator to alter the application code.
The MOST effective way to reduce latency is to relaunch the EC2 instances in:

• A.a single subnet inside the VPC.
• B.a single Availability Zone.
• C.a dedicated VPC.
• D.a placement group.

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