Compute Services

Question 1

What is EC2?

Answer 1

• Amazon Elastic Compute Cloud
• A service that runs virtual server instances in the cloud

Question 2

What is AMI?

Answer 2

• Amazon Machine Image
• Used to launch an EC2 instance
• Consists of EBS snapshot, permissions and configuration

Question 3

What is EC2 User Data and Metadata?

Answer 3

• User Data is data supplied by the user at launch of the instance as a script
• Metadata is data about the instance that you can use to configure or manage the running instance

Question 4

How are access keys used?

Answer 4

• Access keys can be used on an EC2 instance to gain permissions to other AWS services
• Access keys are stored in plaintext (not secure)
• IAM roles are a better option when possible

Question 5

What are the benefits of EC2?

Answer 5

• Elastic computing - easily launch hundreds to thousands of EC2 instances within minutes
• Complete control - you control the EC2 instances with full root/administrative access
• Flexible - choice of instance types, operating systems, and software packages
• Reliable - EC2 offers very high levels of availability and instances can be rapidly commissioned and replaced
• Secure - Fully integrated with Amazon VPC and security features
• Inexpensive - low cost, pay for what you use

Question 6

What are the benefits of AWS Batch?

Answer 6

• AWS Batch enables developers, scientists, and engineers to
  easily and efficiently run hundreds of thousands of batch
  computing jobs on AWS
• AWS Batch dynamically provisions the optimal quantity and
  type of compute resources

Question 7

What is Amazon Lightsail?

Answer 7

• ## Amazon Lightsail provides compute, storage, and networking capacity and capabilities to deploy and manage websites, web applications, and databases in the cloud

Question 8

What is a good use for Amazon Lightsail?

Answer 8

• Amazon Lightsail is great for users who do not have deep AWS technical expertise as it make it very easy to provision compute services
• Best suited to projects that require a few dozen instances or fewer
• Provides a simple management interface
• Good for blogs, websites, web applications, e-commerce etc.
• Can deploy load balancers and attach block storage

Question 9

What is ECS?

Answer 9

Amazon Elastic Container Service

Question 10

What is ECS used for?

Answer 10

• running Docker containers in the cloud

Question 11

What are the ECS launch types?

Answer 11

EC2 launch type:
* You managed EC2 instances which are the hosts for running the tasks
Fargate launch type:
* AWS manage the underlying compute, cluster, and scaling

Question 11

What are ECS containers?

Answer 11

ECS containers are known as tasks

Question 12

What is ECR?

Answer 12

Amazon Elastic Container Registry (ECR) is a private
container image registry