Exam Questions 1

Question 1

S3 - Simple Storage Service

Answer 1

• A&D require development and administrative overhead.
• C might work, but it will not archive the data for the additional 3 months.

Question 2

Databases in AWS

Answer 2

• D is incorrect because Dynamo DB does not accept complex SQL queries
• A&B Aurora and RDS does not fit the need of minimal development and the API requirement

Question 3

Collecting Streaming Data

Answer 3

• B&D There is no requirement to transform the data before it gets to the Business Intelligence tools
  C We could use RDS Aurora to scale up the storage, but it would be very costly. Database Migration Service may not be able to handle the volume of data we need without costing a huge amount of money.

Question 4

Database Migration Service DMS

Answer 4

Question 5

Database Migration Service : Use Cases

Answer 5

Question 6

Replication

Answer 6

Question 7

S3 Transfer Acceleration

Answer 7

The speed at which users can access objects in an S3 bucket goes down as the distance between the user and the AZ increases.

Question 8

S3 Transfer Acceleration - CloudFront - Downloads

Answer 8

To get data to users more quickly, CloudFront uses cacheing nodes to cache results at nodes that are closer to the end user in order to improve Download speeds. It is a Global Content Distribution Network.

Question 9

S3 Transfer Acceleration - CloudFront - Uploads

Answer 9

Transfer Acceleration leverages CloudFront edge locations to create a Global Content Ingestion Network utilizing CouldFront’s optimized network paths. Enabled per bucket. Uses special endpoints.

Question 10

S3 Multi Part Upload

Answer 10

Max S3 PUT size = 5GiB

Max S3 object size = 5TiB

We achieve this by breaking up an object into smaller pieces, sending them to S3, then reassembling them back into one object.

Question 11

S3 Storage Classes

Answer 11

Question 12

S3 Availability

Answer 12

Question 13

S3 Data Lifecycle

Answer 13

Question 14

S3 Access Security Waterfall

Answer 14

If permissions are denied at any point in from macro to micro, the request for the S3 object fails. All of these permissions comprise the Organization’s Service Control Policy

Question 15

S3 Object Protection and Replication

Answer 15

Question 16

Relational Database Types - Row Access

Answer 16

A query will pick up a whole row at a time to access data. Excellent for rapid transactions with relatively small pieces of data.

Question 17

Relational Database Types - Columnar Access

Answer 17

A query will scan one or more columns to access data. Excellent for analytical workloads that handle large pieces of data. These databases will be the ones used for Data Analytics.

Question 18

NoSQL Databases - Elasticache

Answer 18

Memcache

Redis

Key-Value

Question 19

NoSQL Databases - Document

Answer 19

Key-Value

DynamoDB

DocumentDB

Question 20

NoSQL Databases - Graph

Answer 20

Neptune

Key-Value

Question 21

Graph Database - Graph Structure

Answer 21

Question 22

Database Engine Types - Summary

Answer 22

Question 23

Managed Relational Database Engines

Answer 23

Question 24

Managed Relational Databases - Disaster Recovery

Answer 24

Question 25

Managed Relational Database Services - Summary

Answer 25

Question 26

Graph Databases - Neptune

Answer 26

Interface Languages

Question 27

Graph Databases - Neptune - Comparison to RDS

Answer 27

Question 28

Graph Databases - Neptune - Use Cases

Answer 28

Question 29

Graph Databases - Neptune - Summary

Answer 29