In Java, how does the Chain of Responsibility pattern differ from the Decorator pattern? The Chain of Responsibility pattern and the Decorator pattern is both structural design patterns in Java that involve wrapping objects, but they have different intents and implementations. The Chain of Responsibility pattern is used to handle requests in a chain of… Read More »
What is AWS SQS? Amazon Simple Queue Service (Amazon SQS) is a fully managed message queuing service that enables you to decouple and scale microservices, distributed systems, and serverless applications. SQS eliminates the complexity and overhead associated with managing and operating message oriented middleware, and empowers developers to focus on differentiating work. With SQS, you… Read More »
What is AWS CloudWatch, and what are its key features? Amazon CloudWatch is a monitoring and observability service provided by Amazon Web Services (AWS). It collects and tracks metrics, logs, and events from your AWS resources, as well as on-premises and hybrid environments. AWS CloudWatch provides a unified view of your infrastructure and applications to… Read More »
What is DynamoDB, and how does it differ from other databases? Amazon DynamoDB is a fully managed NoSQL database service provided by Amazon Web Services (AWS). It is designed to deliver fast and predictable performance with seamless scalability. DynamoDB is a non-relational database, which means it does not rely on a fixed schema or tables… Read More »
What is AWS Identity and Access Management (IAM) and why is it important? AWS Identity and Access Management (IAM) is a web service that enables you to manage access to AWS services and resources securely. It allows you to create and manage users, groups, and roles, and define granular permissions to access resources within your… Read More »
What is Amazon RDS, and how is it used in AWS? Amazon RDS (Relational Database Service) is a managed database service offered by AWS that enables users to easily set up, operate, and scale a relational database in the cloud. With RDS, users can create and manage databases, set up automatic backups, and configure options… Read More »
What is Amazon SNS and how does it work? Amazon SNS (Simple Notification Service) is a fully-managed messaging service provided by AWS (Amazon Web Services) that enables applications, services, and devices to send and receive notifications from the cloud. SNS supports a variety of messaging protocols and transports, such as HTTP/HTTPS, email, SMS, mobile push… Read More »
What is Amazon Kinesis and what are its use cases? Amazon Kinesis is a managed service provided by AWS that allows users to easily collect, process, and analyze large streams of data in real-time. It provides a platform for ingesting, processing, and delivering streaming data at scale. Some of the common use cases for Amazon… Read More »
What is AWS CloudFormation, and how does it work? AWS CloudFormation is a service provided by Amazon Web Services (AWS) that allows users to create and manage AWS resources as code. It provides an easy and efficient way to create and manage a collection of AWS resources, including EC2 instances, S3 buckets, RDS databases, load… Read More »
What is Amazon ElastiCache and how does it work? Amazon ElastiCache is a web service that makes it easy to deploy, operate, and scale an in-memory data store or cache in the cloud. It provides a fully-managed caching solution that can be used to improve the performance of applications by storing frequently accessed data in… Read More »