Cloud Architecting - Week 8

You are designing an ecommerce web application that will scale to hundreds of thousands of concurrent users. Which database technology is best suited to hold the session state in this example?

• Amazon Relational Database Service (Amazon RDS)

• Amazon DynamoDB

• Amazon Redshift

• Amazon Simple Storage Service (Amazon S3)

You need to find an item in an Amazon DynamoDB table using an attribute other than the item's primary key. Which of the following operations should you use?

• PutItem

• Scan

• Query

• GetItem

In Amazon DynamoDB, What does the query operation enable you to do?

• Query a table using partition key and an optional sort key filter

• Query any secondary indexes that exist for a table

• Efficiently retrieve items from a table or secondary index

• All of the above

Which AWS Cloud service is best suited for analysing your data by using standard structured query language (SQL) and your existing business intelligence (BI) tools?

• Amazon RDS

• Amazon S3 Glacier

• 
  Amazon DynamoDB

• Amazon Redshift

In Amazon DynamoDB, an attribute is ______.

• a fundamental data element

• a collection of items

• a collection of attributes

• a collection of tables

If you are developing an application that requires a database with extremely fast performance, fast scalability, and flexibility in the database scheme, which service should you consider?

• Amazon Relational Database Service (Amazon RDS)

• Amazon ElastiCache

• Amazon DynamoDB

• Amazon Redshift

Which of the following use cases is appropriate for using Amazon Relational Database Service (Amazon RDS)?

• Massive read/write rates

• Simple GET or PUT requests

• Complex transactions

• All of above

A company has an application, which consists of a .NET layer that connects to a MySQL database. They want to move this application on 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

• Amazon DynamoDB

• Amazon Aurora

• Amazon Redshift

• Amazon RDS

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

What should you consider when choosing a database type?

• Data size

• Data access period

• Query frequency

• High available

• All of the above