# Day #49 - INTERVIEW QUESTIONS ON AWS

* Name 5 aws services you have used and what's the use cases?
    
* What are the tools used to send logs to the cloud environment?
    
* What are IAM Roles? How do you create /manage them?
    
* How to upgrade or downgrade a system with zero downtime?
    
* What is infrastructure as code and how do you use it?
    
* What is a load balancer? Give scenarios of each kind of balancer based on your experience.
    
* What is CloudFormation and why is it used for?
    
* Difference between AWS CloudFormation and AWS Elastic Beanstalk?
    
* What are the kinds of security attacks that can occur on the cloud? And how can we minimize them?
    
* Can we recover the EC2 instance when we have lost the key?
    
* What is a gateway?
    
* What is the difference between the Amazon Rds, Dynamodb, and Redshift?
    
* Do you prefer to host a website on S3? What's the reason if your answer is either yes or no?