Usually the way Redis works is this: the client sends a request to the server and waits for a response which is returned from the server once the request is executed. This can obviously bring performance issues when trying to issue multiple commands though. Redis mitigates this through a technique
Redis is an in-memory database suitable for cache in order to increase the speed and availability of an application. It can be used alongside another (classical) database which does not run in memory which can be used to store permanent data.
MongoDB has powerful sharding and scaling capabilities for when the data stored in the database gets so large that a single machine may not be able to store all of it. Sharding solves this problem through horizontal scaling. Mongo gives developers the ability to easily and painlessly add or remove...
The content is deployed immediately through the Firebase CLI. Once it's uploaded, the content is served immediately. If you have made a mistake, you don't need to re-upload a new version, through the Admin dashboard you can easily rollback to a previous version.