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AWS Important Questions ?

1) Explain what AWS is?
Ans : AWS stands for Amazon Web Service; it is a collection of remote computing services also
known as a cloud computing platform. This new realm of cloud computing is also known as
IaaS or Infrastructure as a Service.

2) Mention what the key components of AWS are?
Ans : The key components of AWS are
Route 53:A DNS web service
Simple E-mail Service:It allows sending e-mail using RESTFUL API call or via regular
SMTP
Identity and Access Management:It provides enhanced security and identity
management for your AWS account
Simple Storage Device or (S3):It is a storage device and the most widely used AWS
service
Elastic Compute Cloud (EC2): It provides on-demand computing resources for hosting
applications. It is handy in case of unpredictable workloads
Elastic Block Store (EBS):It offers persistent storage volumes that attach to EC2 to
allow you to persist data past the lifespan of a single Amazon EC2 instance
CloudWatch: To monitor AWS resources, It allows administrators to view and collect
key Also, one can set a notification alarm in case of trouble.

3) Explain what S3 is?
Ans : S3 stands for Simple Storage Service. You can use S3 interface to store and retrieve any
amount of data, at any time and from anywhere on the web. For S3, the payment model is “pay
as you go.”

4) What is AMI?
Ans : AMI stands for Amazon Machine Image. It’s a template that provides the information (an
operating system, an application server, and applications) required to launch an instance, which
is a copy of the AMI running as a virtual server in the cloud. You can launch instances from as
many different AMIs as you need.

5) Mention what the relationship between an instance and AMI is?
Ans : From a single AMI, you can launch multiple types of instances. An instance type defines the
hardware of the host computer used for your instance. Each instance type provides different
computer and memory capabilities. Once you launch an instance, it looks like a traditional host,
and we can interact with it as we would with any computer.

6) What does an AMI include?
Ans : An AMI includes the following things
A template for the root volume for the instance
Launch permissions decide which AWS accounts can avail the AMI to launch instances
A block device mapping that determines the volumes to attach to the instance when it is
launched