Section 19: AWS Other Services (CloudFront, Step Functions, SWF, SES, Redshift, ACM)

Question 1

What is AWS CloudFront?

Answer 1

A fast CDN

Question 2

What does CDN stand for?

Answer 2

Content Delivery Network

Question 3

How many Points of Presence does CloudFront offer as of April 2020?

Answer 3

Over 200

Question 4

How is CloudFront helpful security wise?

Answer 4

Can help protect against network attacks

Can provide SSL encryption at the Edge using ACM

Question 5

Is Videos/media supported by CloudFront? If so, via what protocol?

Answer 5

RTMP Protocol

Question 6

What does RTMP stand for?

Answer 6

Real-Time Messaging Protocol

Question 7

What does ACM stand for?

Answer 7

AWS Certificate Manager

Question 8

What are your two options when you want to equip your app hosted on AWS with an SSL certificate?

Answer 8

Buy your own and upload it using the CLI

Have ACM provision and renew a public SSL certificate for you

Question 9

How much does ACM charges for SSL certificates?

Answer 9

0$ (free)

Question 10

In what integrations can ACM load SSL certificates?

Answer 10

Load Balancers
CloudFront distributions
APIs on API Gateway

Question 11

Are SSL certificates easy to manage manually?

Answer 11

No, that’s why ACM is great to leverage in your AWS infrastructure

Question 12

What do AWS Step Functions allow you to do?

Answer 12

Build serverless visual workflow to orchestrate your Lambda functions

Question 13

How is an AWS Step Function flow represented as?

Answer 13

A JSON state machine

Question 14

What features do AWS Step Functions provide?

Answer 14

Sequence
Parallel
Conditions
Timeouts
Error handling

Question 15

What other integrations does AWS Step Functions support?

Answer 15

EC2
ECS
On premise servers
API Gateway

Question 16

What is the maximum execution time of a step function?

Answer 16

1 year

Question 17

What are some use cases of step functions?

Answer 17

Order fulfillment
Data processing
Web apps
Any workflow

Question 18

What does AWS SWF stand for?

Answer 18

AWS Simple Workflow Service

Question 19

Where does the code run when using AWS SWF

Answer 19

On EC2 (not serverless)

Question 20

What does is the max runtime of AWS SWF?

Answer 20

1 year

Question 21

What are the two types of steps in AWS SWF?

Answer 21

Activity step

Decision step

Question 22

What should you prefer between Step Functions and AWS SWF?

Answer 22

Step functions

Question 23

When should you use SWF rather than step functions?

Answer 23

If you need external signals to intervene in the processes

If you need child processes that return values to parent processes

Question 24

What does AWS SES stand for?

Answer 24

AWS Simple Email Service

Question 25

What are the two things you can use to send emails with AWS SES?

Answer 25

SMTP interface

AWS SDK

Question 26

Does SES has the ability to receive emails?

Answer 26

Yes

Question 27

What does SES integrate with?

Answer 27

S3
SNS
Lambda

Question 28

What is AWS Redshift?

Answer 28

Redshift is a fully managed, petabyte-scale data warehouse service in the cloud.

Question 29

What does AWS Redshift provide?

Answer 29

Data warehousing / Data Lake

Analytics queries

Question 30

What does AWS DMS stand for?

Answer 30

AWS Database Migration Service