An internet advertising firm stores its data in an Amazon DynamoDb table. Amazon DynamoDB Streams are enabled on the table, and one of the keys has a global secondary index. The table is encrypted using a customer-managed AWS Key Management Service (AWS KMS) key. The firm has chosen to grow worldwide and want to duplicate the database using DynamoDB global tables in a new AWS Region. An administrator observes the following upon review: No role with the dynamodb: CreateGlobalTable permission exists in the account. An empty table with the same name exists in the new Region where replication is desired. A global secondary index with the same partition key but a different sort key exists in the new Region where replication is desired. Which settings will prevent you from creating a global table or replica in the new Region? (Select two.)
In North America, a business launched a mobile game that swiftly expanded to 10 million daily active players. The game's backend is hosted on AWS and makes considerable use of a TTL-configured Amazon DynamoDB table. When an item is added or changed, its TTL is set to 600 seconds plus the current epoch time. The game logic is reliant on the purging of outdated data in order to compute rewards points properly. At times, items from the table are read that are many hours beyond their TTL expiration. How should a database administrator resolve this issue?
On a single Amazon RDS DB instance, a business hosts a MySQL database for its ecommerce application. Automatically saving application purchases to the database results in high-volume writes. Employees routinely create purchase reports for the company. The organization wants to boost database performance and minimize downtime associated with upgrade patching. Which technique will satisfy these criteria with the LEAST amount of operational overhead?
A gaming company wants to deploy a game in multiple Regions. The company plans to save local high scores in Amazon DynamoDB tables in each Region. A Database Specialist needs to design a solution to automate the deployment of the database with identical configurations in additional Regions, as needed. The solution should also automate configuration changes across all Regions. Which solution would meet these requirements and deploy the DynamoDB tables?
A worldwide digital advertising corporation collects browser information in order to provide targeted visitors with contextually relevant pictures, websites, and connections. A single page load may create many events, each of which must be kept separately. A single event may have a maximum size of 200 KB and an average size of 10 KB. Each page load requires a query of the user's browsing history in order to deliver suggestions for targeted advertising. The advertising corporation anticipates daily page views of more than 1 billion from people in the United States, Europe, Hong Kong, and Indi a. The information structure differs according to the event. Additionally, browsing information must be written and read with a very low latency to guarantee that consumers have a positive viewing experience. Which database solution satisfies these criteria?
Recently, an ecommerce business transferred one of its SQL Server databases to an Amazon RDS for SQL Server Enterprise Edition database instance. The corporation anticipates an increase in read traffic as a result of an approaching sale. To accommodate the projected read load, a database professional must establish a read replica of the database instance. Which procedures should the database professional do prior to establishing the read replica? (Select two.)
