A company’s database is hosted on an Amazon Aurora MySQL DB cluster in the us-east-1 Region.The database is 4 TB in size.The company needs to expand its disaster recovery strategy to the us-west-2 Region.The company must have the ability to fail over to us-west-2 with a recovery time objective (RTO) of 15 minutes.What should a solutions architect recommend to meet these requirements?Read More →
A data scientist uses Amazon SageMaker Data Wrangler to define and perform transformations and feature engineering on historical data.The data scientist saves the transformations to SageMaker Feature Store.The historical data is periodically uploaded to an Amazon S3 bucket.The data scientist needs to transform the new historic data and add it to the online feature store.The data scientist needs to prepare the new historic data for training and inference by using native integrations.Which solution will meet these requirements with the LEAST development effort?Read More →
In order to optimize performance for a compute cluster that requires low inter-node latency, which feature in the following list should you use?Read More →
A company is running its application in the AWS Cloud and wants to protect against a DDoS attack.The company’s security team wants near real-time visibility into DDoS attacks.Which AWS service or traffic filter will meet these requirements with the MOST features for DDoS protection?Read More →
A social media application uses the AWS SDK for JavaScript on the frontend to get user credentials from AWS Security Token Service (AWS STS).The application stores its assets in an Amazon S3 bucket.The application serves its content by using an Amazon CloudFront distribution with the origin sot to the S3 bucket.The credentials for the role that the application assumes to make the SDK calls are stored in plaintext in a JSON file within the application code.The developer needs to implement a solution that will allow the application to get user credentials without having any credentials hardcoded in the application code.Which solution will meet these requirements?Read More →
Users report intermittent availability of a web application hosted on AWS.Monitoring systems report an excess of abnormal network traffic followed by high CPU utilization on the application web tier.Which of the following techniques will improve the availability of the application? (Choose two.)Read More →
A company has an internal application running on AWS that is used to track and process shipments in the company’s warehouse.Currently, after the system receives an order, it emails the staff the information needed to ship a package.Once the package is shipped, the staff replies to the email and the order is marked as shipped.The company wants to stop using email in the application and move to a serverless application model.Which architecture solution meets these requirements?Read More →
A SysOps administrator needs to configure automatic rotation for Amazon RDS database credentials.The credentials must rotate every 30 days.The solution must integrate with Amazon RDS.Which solution will meet these requirements with the LEAST operational overhead?Read More →
A clothing company uses a custom ecommerce application and a PostgreSQL database to sell clothes to thousands of users from multiple countries.The company is migrating its application and database from its on-premises data center to the AWS Cloud.The company has selected Amazon EC2 for the application and Amazon RDS for PostgreSQL for the database.The company requires database passwords to be changed every 60 days.A Database Specialist needs to ensure that the credentials used by the web application to connect to the database are managed securely.Which approach should the Database Specialist take to securely manage the database credentials?Read More →
A company has deployed a multiplayer game for mobile devices.The game requires live location tracking of players based on latitude and longitude.The data store for the game must support rapid updates and retrieval of locations.The game uses an Amazon RDS for PostgreSQL DB instance with read replicas to store the location data.During peak usage periods, the database is unable to maintain the performance that is needed for reading and writing updates.The game’s user base is increasing rapidly.What should a solutions architect do to improve the performance of the data tier?Read More →
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