Compute Fundamentals For AWS

Question 1

What is the EC2 Container Service? ECS

Answer 1

It allows you to run Docker-enabled applications packaged as containers across a cluster of EC2 Instances without heavy managing

Question 2

How does the EC2 Container Service alleviate the burden of managing your own cluster?

Answer 2

It’s passes responsibility over to AWS through the use of AWS Fargate

Question 3

What is AWS Fargate?

Answer 3

Engine used to enable ECS to run containers without having to manage and provision instances and clusters for containers

Question 4

What is Docker?

Answer 4

Piece of software that allows you to automate the installation and distribution of applications inside Linux containers

Question 5

What is a Container?

Answer 5

It holds everything an application needs to run from within its container package. This may include system libraries, code, run time, etc.

Question 6

What does a VM include that a Container doesn’t?

Answer 6

Operating System

Question 7

Why are Container applications very portable?

Answer 7

They are decoupled from the operating system. This ensures application will always run as expected regardless of it’s deployment location.

Question 8

With Amazon ECS there is no need to install…

Answer 8

management or monitoring software for your cluster. Allows you to focus on building apps and delpoying them.

Question 9

What are the options of deployment for an ECS Cluster?

Answer 9

Fargate Launch and EC2 Launch

Question 10

What does the Fargate Launch require?

Answer 10

Specify the CPU and Memory Required
Define Networking and IAM policies
Package your application into Containers

Question 11

Is the Fargate Launch or the EC2 Launch more customizable?

Answer 11

EC2 Launch

Question 12

What are the responsibilities in the EC2 Launch?

Answer 12

Patching and scaling your instances

Specify instance type and how many containers needed for a cluster

Question 13

How is Monitoring taken care of?

Answer 13

Amazon CloudWatch, which monitors metrics against your Container and your cluster

Question 14

Amazon CloudWatch allows you to monitor metrics against your Container and your cluster. What is the benefit of this?

Answer 14

Easily create alarms based off the metrics, which provides notification of when specific events occur (e.g. cluster size scaling up or down)

Question 15

What comprises an Amazon EC2 cluster?

Answer 15

Collection of EC2 Instances

Question 16

What features can be used with an Amazon EC2 Cluster (EC2 instances)?

Answer 16

Security Groups
Elastic Load Balancing
Auto Scaling

Question 17

Despite Amazon EC2 Cluster being a collection of EC2 instances, how does it operate?

Answer 17

In the same way as a single EC2 instance

Question 18

How do Amazon ECS Clusters act as a resource pool?

Answer 18

They aggregate resource such as CPU and memory

Question 19

Clusters are dynamically _________ and multiple _________ can be used.

Answer 19

scalable, instances

Question 20

Clusters can only scale in a ________ _________.

Answer 20

single region.

Question 21

Amazon ECS Clusters can only scale in a single region but it can scan….

Answer 21

multiple availability zones.

Question 22

Containers can be scheduled to deployed across your Amazon ECS Clusters depending on….

Answer 22

resource requirements, availability requirements through the use of multiple availability zones.

Question 23

Instances within an Amazon ECS Cluster also have a ______ daemon and an ______ agent.

Answer 23

Docker, ECS

Question 24

ECS agents communicate with each other and allow Amazon ECS commands to be translated into….

Answer 24

Docker commands