AWS- Module 8- Knowledge Check.

In Amazon DynamoDB, what does the query operation enable you to do? (Select the best answer). - Query a table using the parition key and an optional sort key filter. - Query any secondary indexes that exist for a table. - Efficiently retrieve items from a table or e=secondary index. - All of the above.

- All of the above.

A company has an application, which consists of .NET layer that connects to MYSQL database. They want to move this application to AWS and use AWS features such as high availability and automated backups. Which of the following would be an ideal database for this use case? (Select the best answer). - Amazon RDS. - Amazon Aurora. - Amazon DynamoDB. - Amazon Redshift.

- Amazon Aurora.

Which AWS cloud service is best suited for analyzing your data by using standard structured query language(SQL) and existing business intelligence (BI) tools? - Amazon relational database service (Amazon RDS). - Amazon Simple Storage Service Glacier. - Amazon Dynamo DB. - Amazon Redshift.

- Amazon Redshift.

What should you consider when choosing a database type? Data size. Data access period. Query frequency. Highly available. All of the above.

All of the above.

If you are developing an application that requires a database with extremely fast performance, fast scalability, and flexibility in database schema, which service should you consider? - Amazon Relational Database Service - Amazon ElastiCache - Amazon DynamoDB - Amazon Redshift.

Amazon DynamoDB.

You are designing an ecommerce web application that will scale to hundreds of thousand of concurrent users. What database technology is best suited to hold session state? -Amazon Relational Database Service (Amazon RDS). -Amazon DynamoDB. -Amazon Redshift. -Amazon Simple Storage Service (Amazon S3).

Amazon DynamoDB.

Which of the following use cases is appropriate for using amazon relational database services (Amazon RDS). - Massive read/write rates. - Simpel get or put requests. - Complex transactions. - All of the above.

Complex transactions.

In Amazon DynamoDB, an attribute is _____ (Select the best answer). - A fundamental data element. - A collection of items. - A collection of attributes.

Fundamental data element.

You need to find an item in an amazon DynamoDB table using an attribute other than item's primary key. -PutItem. -Scan. -Query. -GetItem.

Scan.

Amazon RDS automatically patches the database software and backs up your database storing the backups for a user defined retention period and enabling point in time recovery. True. False.

True.