A company is storing media content in an Amazon S3 bucket and uses Amazon CloudFront to distribute the content to its users. Due to licensing terms, the company is not authorized to distribute the content in some countries. A SysOps administrator must restrict access to certain countries.
What is the MOST operationally efficient solution that meets these requirements?

• A.Update the application to generate signed CloudFront URLs only for IP addresses in authorized countries.
• B.Configure the S3 bucket policy to deny the GetObject operation based on the S3:LocationConstraint condition.
• C.Enable the geo restriction feature in the CloudFront distribution to prevent access from unauthorized countries.
• D.Create a secondary origin access identity (OAI). Configure the S3 bucket policy to prevent access from unauthorized countries.

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A company migrated an I/O intensive application to an Amazon EC2 general purpose instance. The EC2 instance has a single General Purpose SSD Amazon Elastic Block Store (Amazon EBS) volume attached.
Application users report that certain actions that require intensive reading and writing to the disk are taking much longer than normal or are failing completely. After reviewing the performance metrics of the EBS volume, a SysOps administrator notices that the VolumeQueueLength metric is consistently high during the same times in which the users are reporting issues. The SysOps administrator needs to resolve this problem to restore full performance to the application.
Which action will meet these requirements?

• A.Modify the volume properties to increase the IOPS.
• B.Modify the volume properties by deselecting Auto-Enable Volume 10.
• C.Modify the instance to enable enhanced networking.
• D.Modify the instance type to be storage optimized.

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An application accesses data through a file system interface. The application runs on Amazon EC2 instances in multiple Availability Zones, all of which must share the same dat a. While the amount of data is currently small, the company anticipates that it will grow to tens of terabytes over the lifetime of the application.
What is the MOST scalable storage solution to fulfill this requirement?

• A.Launch an EC2 instance and share data using SMB/CIFS or NFS.
• B.Deploy an AWS Storage Gateway cached volume on Amazon EC2.
• C.Deploy Amazon EFS in the VPC and create mount targets in multiple subnets.
• D.Connect a large Amazon EBS volume to multiple instances and schedule snapshots.

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A company has deployed a web application in a VPC that has subnets in three Availability Zones. The company launches three Amazon EC2 instances from an EC2 Auto Scaling group behind an Application Load Balancer (ALB).
A SysOps administrator notices that two of the EC2 instances are in the same Availability Zone, rather than being distributed evenly across all three Availability Zones. There are no errors in the Auto Scaling group's activity history.
What is the MOST likely reason for the unexpected placement of EC2 instances?

• A.The ALB was configured for only two Availability Zones.
• B.The Auto Scaling group was configured for only two Availability Zones.
• C.Amazon EC2 Auto Scaling randomly placed the instances in Availability Zones.
• D.One Availability Zone did not have sufficient capacity for the requested EC2 instance type.

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A recent organizational audit uncovered an existing Amazon RDS database that is not currently configured for high availability. Given the critical nature of this database, it must be configured for high availability as soon as possible.
How can this requirement be met?

• A.Specify high availability when creating a new RDS instance, and live-migrate the data.
• B.Switch to an active/passive database pair using the create-db-instance-read-replica with the --availability-zone flag.
• C.Modify the RDS instance using the console to include the Multi-AZ option.
• D.Use the modify-db-instance command with the --na flag.

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