Multi-AZ Vs Read Replicas in AWS RDS
Multi-AZ deployments and Read Replicas are features of Amazon RDS that involve creating additional copies of your database.
Author: MJ
Simple Notification Service (SNS) Vs EventBridge
Amazon Simple Notification Service (SNS) and Amazon EventBridge are both AWS services designed to handle messaging and event-driven architectures, but they serve different purposes and have distinct features. Here’s a comparison of the two: Amazon Simple Notification Service (SNS) Purpose Key Features Use Cases Amazon EventBridge Purpose Key Features Use Cases Comparison Feature/Aspect SNS EventBridge […]
Messeging Services in AWS
Amazon Web Services (AWS) offers several messaging services designed to facilitate communication between different components of an application or between applications. Here are the key messaging services provided by AWS: 1. Amazon Simple Queue Service (SQS) 2. Amazon Simple Notification Service (SNS) 3. Amazon MQ 4. AWS AppSync 5. Amazon Kinesis Data Streams 6. AWS […]
What are websockets?
WebSockets are a special kind of communication method that allows for a two-way real-time connection between a web browser (client) and a server. This is different from regular web traffic, which typically uses a request-response model. Imagine a regular conversation: you ask a question, and the other person answers. That’s similar to how traditional web […]
Is EBS Volume AZ specific?
If EBS volume is AZ specific, then how can we use the same volume in different AZ to make fault tolerent? EBS volumes are indeed AZ-specific. They reside and are replicated within a single Availability Zone (AZ) for redundancy within that zone. However, there are ways to achieve fault tolerance across AZs with EBS volumes:
Instance Store Vs EBS
As part of instance store in AWS, whatever the storage comes with the instance by default is the instance store, however, if I attach extra EBS volume while lauching the instance. Does this extra EBS volume be considered as Instance store? No, an EBS volume attached to an EC2 instance, even during launch, is not […]
Cross Origin Resource Sharing (CORS)in AWS.
CORS stands for Cross-Origin Resource Sharing. It’s a security mechanism implemented in web browsers that restricts web pages from making requests to a different domain than the one that served the initial webpage. This prevents malicious scripts from stealing data from other websites. In the context of AWS, CORS becomes important when you want to […]