AWS Module 8 Knowledge Check

Question 1

You are designing an ecommerce web application that will scale to hundreds of thousands of concurrent users. What 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)

Answer 1

Amazon DynamoDB

Question 2

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

Answer 2

Scan

Question 3

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

• Query a table using the partition key and an operation enable you to do
• Query any secondary indexes that exist for a table
• Efficiently retrieve items from a table or secondary index
• All of the above

Answer 3

All of the above

Question 4

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

• Amazon Relational Database Service (Amazon RDS)
• Amazon Simple Storage Service - Glacier
• Amazon DynamoDB
• Amazon Redshift

Answer 4

Amazon Redshift

Question 5

In amazon DynamoDB, an attribute is _____.

• a fundamental data element
• a collection of items
• a collection of attributes

Answer 5

a fundamental data element

Question 6

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

• Amazon Relational Database Service (Amazon RDS)
• Amazon ElasiCache
• Amazon DynamoDB
• Amazon Redshift

Answer 6

Amazon DynamoDB

Question 7

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 the above

Answer 7

Complex transactions

Question 8

A company has an application, which consist 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 Aurora
• Amazon DynamoDB
• Amazon RDS
• Amazon Redshift

Answer 8

Amazon Aurora

Question 9

True or False? 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

Answer 9

True

Question 10

What should you consider when choosing a database type?

• Data Size
• Data access period
• Query frequency
• Highly available
• All of the above

Answer 10

All of the above