Realtime AWS Architect Multiple choice Questions and Answers pdf

6. What uses do API’s have in cloud services?
Application Programming Interface (API) has the following uses:
It eliminates the need to write fully fledged programs
It provides the instructions to set up communication between one or more applications
It allows easy creation of applications and links the cloud services with other systems

7. How many data centers are deployed for cloud computing? What are they?
There are two datacenters in cloud computing:
Containerized Datacenters
Low Density Datacenters

8. What is S3?  What is it used for?  Should encryption be used in S3?
According to Amazon, S3 is storage for the Internet. They define it as a, “simple storage service that offers software developers a highly-scalable, reliable, and low-latency data storage infrastructure at very low costs”.
Amazon S3 provides a simple web service interface which you can use to store and retrieve any amount of data, at any time, from anywhere on the web. Using this web service, developers can easily build applications that make use of Internet storage.
Encryption should be considered for sensitive data, as S3 is a proprietary technology developed by Amazon themselves, and yet to be proven from a security standpoint.

9. What is Amazon EC2 service?
Amazon describes Elastic Compute Cloud (Amazon EC2) as a web service that provides resizable compute capacity in the cloud. It is designed to make web-scale cloud computing easier for developers. Amazon EC2’s simple web service interface allows developers to obtain and configure capacity with minimal friction.

10. What is an AMI?
An Amazon Machine Image (AMI) provides the information required to launch an instance, which is a virtual server in the cloud. You specify an AMI when you launch an instance, and you can launch as many instances from the AMI as you need. You can also launch instances from as many different AMIs as you need. Source: http://docs.aws.amazon.com
An AMI includes the following:
A template for the root volume for the instance ( such as an operating system, an application server, and applications)
Launch permissions that control which AWS accounts can use the AMI to launch instances
A block device mapping that specifies the volumes to attach to the instance when it’s launched

Read More Questions:
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