Gateway and Cognito

Question 1

What is the default cache TTL in API Gateway?

Answer 1

300 seconds

Question 2

What is the max TTL in API Gateway?

Answer 2

3600 seconds (1 hour)

Question 3

What is the API Gateway cache capacity?

Answer 3

Between 0.5GB to 237GB

Question 4

How can a client bypass the cache to get data from the backend?

Answer 4

Send the header “Cache-Control:max-age=0”

Question 5

How do you get Cloudwatch Logs for API Gateway?

Answer 5

Enable Cloudwatch logs on the stage level

Question 6

What are the 3 features of IAM in API GAteway?

Answer 6

• Great for users/roles already in your AWS account
• It handles authentication and authorization
• Leverages Sig v4

Question 7

What are the 4 features of Custom Authorizor in API GAteway?

Answer 7

• Great for 3rd party tokens
• Very flexible in terms of what IAM policy is returned
• Handles authentication and authorization
• Py per Lambda invocation

Question 8

What are the 3 features of Cognito User Pool in API GAteway?

Answer 8

• You manage your own user pool, FB, Google etc
• No need to write any custom code
• Must implement authorization in the backend

Question 9

Why would you use Cognito?

Answer 9

If you want to give a user an identity so that they can interact with our app

Question 10

What is Cognito User Pool?

Answer 10

Provides sign in functionality for app users

Question 11

What is Cognito Identity Pool?

Answer 11

It is Federated Identity. It provides AWS credentials to users to access AWS resources directly

Question 12

What is Cognito Sync?

Answer 12

It synchronizes data from a device to Cognito. Most likely being replaced by AppSync

Question 13

What are the 3 ways to write code in the SAM template?

Answer 13

• AWS::SERVERLESS::FUNCTION
• AWS::SERVERLESS::API
• AWS::SERVERLESS::SIMPLETABLE