What does "attach EBS to EC2" mean?
"Attaching an EBS volume to an EC2 instance" means connecting a network-isolated storage drive to a specific virtual server so it can use that space to store data.
If I create a 2 GB EBS volume, can I immediately save files to it?
No, you cannot immediately save files to it right after creating it. Even though the volume is allocated by AWS, you must first perform two essential steps which are, Attach the volume and Format the volume with a file system
What is the difference between HDD and SSD?
The primary difference between Solid-State-Drive (SSD) and hard Disk Drive (HDD) comes down to how they store and access data. SSDs are flash memory chips with no moving parts, while HDDs use spinning magnetic platters and a mechanical read/write arm.
Why do we use EBS?
We use Amazon Elastic Block Store (EBS) because it provides persistent, high-performance block storage designed specifically for Amazon EC2 instance.
Without EBS, any data stored on an EC2 instance's default local drive (Instance Store) is temporary and vanishes forever the moment the instance is stopped or terminated. EBS solves this problem by acting like a network-attached hard drive that keeps your data safe, no matter what happens to the virtual machine.
You are launching a normal web application on EC2. You need a general-purpose SSD. Which volume would you choose?
For launching a normal web application on EC2, you should choose the General Purpose SSD (gp3) volume type.
It is the industry-standard choice for web application servers, development environments, and small-to-medium databases because it provides the best balance of price and performance
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