Tip 2 Cloud

You are developing a new mobile application and are considering storing user preferences in AWS.2w This would provide a more uniform cross-device experience to users using multiple mobile devices to access the application. The preference data for each user is estimated to be 50KB in size Additionally 5 million customers are expected to use the application on a regular basis.The solution needs to be cost-effective, highly available, scalable and secure, how would you design a solution to meet the above requirements?Read More →

A company runs a microservice as an AWS Lambda function.The microservice writes data to an on-premises SQL database that supports a limited number of concurrent connections.When the number of Lambda function invocations is too high, the database crashes and causes application downtime.The company has an AWS Direct Connect connection between the company’s VPC and the on-premises data center.The company wants to protect the database from crashes.Which solution will meet these requirements?Read More →

You have an application running on an EC2 Instance which will allow users to download flies from a private S3 bucket using a pre-signed URL. Before generating the URL the application should verify the existence of the file in S3.How should the application use AWS credentials to access the S3 bucket securely?Read More →