1. A company has a multi-tier application that runs six front-end web servers in an Amazon EC2 Auto Scaling group in a single Availability Zone behind an Application Load Balancer (ALB). A solutions architect needs to modify the infrastructure to be highly available without modifying the application.Which architecture should the solutions architect choose that provides high availability?

A) Modify the Auto Scaling group to use three instances across each of two Availability Zones.
B) Create an Auto Scaling group that uses three instances across each of two Regions.
C) Create an Auto Scaling template that can be used to quickly create more instances in another Region.
D) Change the ALB in front of the Amazon EC2 instances in a round-robin configuration to balance traffic to the web tier.



2. A company hosts a static website on-premises and wants to migrate the website to AWS. The website should load as quickly as possible for users around the world. The company also wants the most cost-effective solutions.What should a solutions architect do to accomplish this?

A) Copy the website content to an Amazon S3 bucket. Configure the bucket to serve static webpage content. Replicate the S3 bucket to multiple AWS Regions.
B) Copy the website content to an Amazon S3 bucket. Configure the bucket to serve static webpage content. Configure Amazon CloudFront with the S3 bucket as the origin.
C) Copy the website content to multiple Amazon EBS-backed Amazon EC2 instances running Apache HTTP Server in multiple AWS Regions. Configure Amazon CloudFront geolocation routing policies to select the closest.
D) Copy the website content to an Amazon EBS-backed Amazon EC2 instance running Apache HTTP Server. Configure Amazon Route 53 geolocation routing policies to select the closest origin.



3. Organizers for a global event want to put daily reports online as static HTML pages. The pages are expected to generate milions of views from users around the wold. The files are stored in an Amazon S3 bucket. A solutions architec has been asked to design an efficient and effective solution.Which action should the solutions architect take to accomplish this?

A) Generate presigned URLs for the files
B) Use the geoproximity feature of Amazon Route 53
C) Use cross-Region replication to all Regions.
D) Use Amazon CloudFront with the S3 bucket as its origin.



4. A company hosts an application on multiple Amazon EC2 instances. The application processes messages from an Amazon SQS queue, writes to an Amazon RDS table and deletes the message from the queue. Occasional duplicate records are found in the RDS table. The SQS queue does not contain any duplicate messages.What should a solutios architect do to ensure messages are being processed once only?

A) Use the Change MessageVisibility API call to increase the visibility timeout.
B) Use the CreateQueue API call to create a new queue.
C) Use the ReceiveMessage API call to set an appropriate wait time.
D) Use the AddPermission API call to add appropriate permissions.



5. A company's application is running on Amazon EC2 instances in a single Region. In the event of a disaster, a solution architect needs to ensure that the resources can also deployed to a second Region.Which combination of actions should the solutions architect take to accomplish this? Select two(Select 2answers)

A) Detech a volume on an EC2 instance and copy it to Amazon S3
B) Launch a new EC instance in a new Region and copy a volume form Amazon S3 to the new instance
C) Copy an Amazon Machine Image (AMI) of an EC2 instance and specify a different Region for the destination
D) Launch a new EC2 instance from an Amazon Machine Image (AMI) in a new Region
E) Copy an Amazon Elastic Block Store (Amazon EBS) volume from Amazon S3 and launch an EC2 instance in the destination Region using that EBS volume