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 company has several Amazon DynamoDB tables in an AWS Region. Each table has more than 100,000 records and was created with default table settings.
To reduce costs, the company needs to identify unused tables. However, the company must maintain the availability and current performance capability of the tables in case the company must use the tables in the future.
Which combination of steps will meet these requirements? (Select THREE.)
A company has dozens of AWS accounts for different teams, applications, and environments. The company has defined a custom set of controls that all accounts must have. The company is concerned that potential misconfigurations in the accounts could lead to security issues or noncompliance. A solutions architect must design a solution that deploys the custom controls by using infrastructure as code (IaC) in a repeatable way. Which solution will meet these requirements with the LEAST operational overhead?
A video processing company wants to build a machine learning (ML) model by using 600 TB of compressed data that is stored as thousands of files in the company's on-premises network attached storage system. The company does not have the necessary compute resources on premises for ML experiments and wants to use AWS.
The company needs to complete the data transfer to AWS within 3 weeks. The data transfer will be a one-time transfer. The data must be encrypted in transit. The measured upload speed of the company's internet connection is 100 Mbps, and multiple departments share the connection.
Which solution will meet these requirements MOST cost-effectively?