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AWS DEVELOPER ASSOCIATE CHEATSHEET

by KAUSTUBH SHARMA on April 25, 2021, 9:10 p.m. with 4501 views

In this cheat sheet, you learn about how AWS services solve our problems/requirements. This cheat sheet will be helpful for the last-day revision for AWS Certified Developer Associate.

Direct Keywords

Here, Direct keywords mean which keywords directly reflect an AWS Service. These are must-know pairs of keywords & AWS Services. Without learning them, never ever go to the AWS Certification exam.

 

KEYWORDS SOLUTION
  • Test permissions using AWS CLI 

aws sts assume-role 

  • ASG to Maintain capacity at a specified target.
Target tracking scaling policy
  • Use libraries in Lambda without needing to include them in your deployment package.
Create Layer in Lambda
  • Increase performance of S3 

Split reads across prefixes 

  • Encryption at rest in DynamoDB 

Amazon DynamoDB Encryption Client 

  • Optimize scan of DynamoDB 

Use parallel scan and limit parameter 

  • To ensure most up-to-date data retrieved from DynamoDB for all queries 

Set  ConsistentRead parameter to true when calling Read operation (such as GetItem, Query, and Scan) 

  • Cache items from DynamoDB 
  • Improve read performance 

Use DynamoDB Accelerator 

  • Group transaction of DynamoDB in all-or-nothing update 

TransactWriteItems 

  • Group transaction of DynamoDB without all-or-nothing requirement 

BatchWriteItem 

  • Selection of attributes from base table but organized by primary key that is different from base table 

Global Secondary Index 

  • Alarm with period of 10 /30 seconds 
  • Higher charge 

High-resolution Alarm 

  • Alarm with period of any multiple of 60 seconds 

Regular CW Alarm 

  • Search & filter log data coming into CW Logs. 
  • Turn log data into numerical CW Metrics that can be graphed and set an alarm on. 

CW Metric Filter 

  • Audit AWS API calls
AWS CloudTrail
  • defines the deployment actions you want AWS CodeDeploy to execute.

Appspec
  • AppSpec file for an Amazon ECS or AWS Lambda deployment
appspec.YAML
  • AppSpec file for an EC2/On-Premises deployment
appspec.yml
  • Use IAM Roles to generate temporary credentials for users 
  • Synchronize data across devices without the need to create backend applications

Amazon Cognito 

  • For Authorization(Access Control) 
  • Enable users in your user pool to access AWS resources 

Amazon Cognito Identity Pools 

  • User can access only their own data 

Use Trust policy with IAM condition key to limit access 

  • Create SSL/TLS certificates 

AWS Certificate Manager 

   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
 

 

PROBLEMS/NEED

How to Synchronize data across devices without the need to create backend applications?

PROBLEMS/NEED

How to control the placement of tasks of Docker containers on Amazon ECS?

PROBLEMS/NEED

How to improve the Lambda function's performance, considering the Lambda function is downloading a file less than 512MB & it is called multiple times a second?

PROBLEMS/NEED

How to obscured secret values in Lambda console & API output even for users who have permission to use the key?

PROBLEMS/NEED

How to Associate AWS Resources with the event source?

PROBLEMS/NEED

How to invalidate API Cache?

PROBLEMS/NEED

How to initially direct a percentage of traffic to the new version of Lambda code and gradually increase this over time & also be able to roll back if required?

PROBLEMS/NEED

How to modify the Lambda function to ensure data is encrypted before it is uploaded to the S3 bucket.

PROBLEMS/NEED

How to add a manual approval step before the code is deployed into the production environment in release process workflow of the application running on Amazon ECS?.

PROBLEMS/NEED

How to encrypt all traffic between users and CloudFront, and all traffic between CloudFront and the web application?

PROBLEMS/NEED

How to restrict AWS services, resources, and API actions that can be accessed by users in the account which is a member account in AWS Organizations?

PROBLEMS/NEED

How to deploy serverless applications composed of AWS Lambda, Amazon API Gateway, and Amazon DynamoDB using simple syntax?

PROBLEMS/NEED

Developers need a centralized private repository for managing source code. The repository should support updates from multiple sources. Which service he should use?

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