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Topic 1: Exam Pool A
A company wants to use AWS to create a business continuity solution in case the
company's main on-premises application fails. The application runs on physical servers
that also run other applications. The on-premises application that the company is planning
to migrate uses a MySQL database as a data store. All the company's on-premises
applications use operating systems that are compatible with Amazon EC2.
Which solution will achieve the company's goal with the LEAST operational overhead?
A. Install the AWS Replication Agent on the source servers, including the MySQL servers.
Set up replication for all servers. Launch test instances for regular drills. Cut over to the test
instances to fail over the workload in the case of a failure event.
B. Install the AWS Replication Agent on the source servers, including the MySQL servers.
Initialize AWS Elastic Disaster Recovery in the target AWS Region. Define the launch
settings. Frequently perform failover and fallback from the most recent point in time.
C. Create AWS Database Migration Service (AWS DMS) replication servers and a target Amazon Aurora MySQL DB cluster to host the database. Create a DMS replication task to copy the existing data to the target DB cluster. Create a local AWS Schema Conversion Tool (AWS SCT) change data capture (CDC) task to keep the data synchronized. Install the rest of the software on EC2 instances by starting with a compatible base AMI.
D. Deploy an AWS Storage Gateway Volume Gateway on premises. Mount volumes on all on-premises servers. Install the application and the MySQL database on the new volumes. Take regular snapshots. Install all the software on EC2 Instances by starting with a compatible base AMI. Launch a Volume Gateway on an EC2 instance. Restore the volumes from the latest snapshot. Mount the new volumes on the EC2 instances in the case of a failure event.
A company is storing data on premises on a Windows file server. The company produces 5
GB of new data daily.
The company migrated part of its Windows-based workload to AWS and needs the data to
be available on a file system in the cloud. The company already has established an AWS
Direct Connect connection between the on-premises network and AWS.
Which data migration strategy should the company use?
A. Use the file gateway option in AWS Storage Gateway to replace the existing Windows file server, and point the existing file share to the new file gateway.
B. Use AWS DataSync to schedule a daily task to replicate data between the on-premises Windows file server and Amazon FSx.
C. Use AWS Data Pipeline to schedule a daily task to replicate data between the onpremises Windows file server and Amazon Elastic File System (Amazon EFS).
D. Use AWS DataSync to schedule a daily task lo replicate data between the on-premises Windows file server and Amazon Elastic File System (Amazon EFS),
A company is using Amazon OpenSearch Service to analyze data. The company loads
data into an OpenSearch Service cluster with 10 data nodes from an Amazon S3 bucket
that uses S3 Standard storage. The data resides in the cluster for 1 month for read-only
analysis. After 1 month, the company deletes the index that contains the data from the
cluster. For compliance purposes, the company must retain a copy of all input data.
The company is concerned about ongoing costs and asks a solutions architect to
recommend a new solution.
Which solution will meet these requirements MOST cost-effectively?
A. Replace all the data nodes with UltraWarm nodes to handle the expected capacity. Transition the input data from S3 Standard to S3 Glacier Deep Archive when the company loads the data into the cluster.
B. Reduce the number of data nodes in the cluster to 2 Add UltraWarm nodes to handle the expected capacity. Configure the indexes to transition to UltraWarm when OpenSearch Service ingests the data. Transition the input data to S3 Glacier Deep Archive after 1 month by using an S3 Lifecycle policy.
C. Reduce the number of data nodes in the cluster to 2. Add UltraWarm nodes to handle the expected capacity. Configure the indexes to transition to UltraWarm when OpenSearch Service ingests the data. Add cold storage nodes to the cluster Transition the indexes from UltraWarm to cold storage. Delete the input data from the S3 bucket after 1 month by using an S3 Lifecycle policy.
D. Reduce the number of data nodes in the cluster to 2. Add instance-backed data nodes to handle the expected capacity. Transition the input data from S3 Standard to S3 Glacier Deep Archive when the company loads the data into the cluster.
Explanation: By reducing the number of data nodes in the cluster to 2 and adding UltraWarm nodes to handle the expected capacity, the company can reduce the cost of running the cluster. Additionally, configuring the indexes to transition to UltraWarm when OpenSearch Service ingests the data will ensure that the data is stored in the most costeffective manner. Finally, transitioning the input data to S3 Glacier Deep Archive after 1 month by using an S3 Lifecycle policy will ensure that the data is retained for compliance purposes, while also reducing the ongoing costs.
A company is building a solution in the AWS Cloud. Thousands or devices will connect to
the solution and send data. Each device needs to be able to send and receive data in real time over the MQTT protocol. Each device must authenticate by using a unique X.509
certificate.
Which solution will meet these requirements with the LEAST operational overhead?
A. Set up AWS loT Core. For each device, create a corresponding Amazon MQ queue and provision a certificate. Connect each device to Amazon MQ.
B. Create a Network Load Balancer (NLB) and configure it with an AWS Lambda authorizer. Run an MQTT broker on Amazon EC2 instances in an Auto Scaling group. Set the Auto Scaling group as the target for the NLB. Connect each device to the NLB.
C. Set up AWS loT Core. For each device, create a corresponding AWS loT thing and provision a certificate. Connect each device to AWS loT Core.
D. Set up an Amazon API Gateway HTTP API and a Network Load Balancer (NLB). Create integration between API Gateway and the NLB. Configure a mutual TLS certificate authorizer on the HTTP API. Run an MQTT broker on an Amazon EC2 instance that the NLB targets. Connect each device to the NLB.
Explanation: This solution requires minimal operational overhead, as it only requires setting up AWS IoT Core and creating a thing for each device. (Reference: AWS Certified Solutions Architect - Professional Official Amazon Text Book, Page 537) AWS IoT Core is a fully managed service that enables secure, bi-directional communication between internet-connected devices and the AWS Cloud. It supports the MQTT protocol and includes built-in device authentication and access control. By using AWS IoT Core, the company can easily provision and manage the X.509 certificates for each device, and connect the devices to the service with minimal operational overhead.
A weather service provides high-resolution weather maps from a web application hosted on
AWS in the eu-west-1 Region. The weather maps are updated frequently and stored in
Amazon S3 along with static HTML content. The web application is fronted by Amazon
CloudFront.
The company recently expanded to serve users in the us-east-1 Region, and these new
users report that viewing their respective weather maps is slow from time to time.
Which combination of steps will resolve the us-east-1 performance issues? (Choose two.)
A. Configure the AWS Global Accelerator endpoint for the S3 bucket in eu-west-1.
Configure endpoint groups for TCP ports 80 and 443 in us-east-1.
B. Create a new S3 bucket in us-east-1. Configure S3 cross-Region replication to synchronize from the S3 bucket in eu-west-1.
C. Use Lambda@Edge to modify requests from North America to use the S3 Transfer Acceleration endpoint in us-east-1.
D. Use Lambda@Edge to modify requests from North America to use the S3 bucket in useast- 1.
E. Configure the AWS Global Accelerator endpoint for us-east-1 as an origin on the CloudFront distribution. Use Lambda@Edge to modify requests from North America to use the new origin.
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