Infosys– AWS Interview Questions

Here is the list of AWS Interview Questions which are recently asked in Infosys company. These questions are included for both Freshers and Experienced professionals.

1. Compare AWS with OpenStack

OpenStack and AWS help to upload images in which AWS has EC2, and EMR Hadoop based big data. On the other hand OpenStack is designed to scale on hardware without specific requirements.

2. How will you access the data on EBS in AWS ?

The data on EBS in AWS can be accessed by seeing the EBS ID which is present in the EC2 Web Console in the root device .The EBS Volume ID show the view of the data list in the Elastic Block Store.

3. What is the boot time for an instance store backed instance ?

The boot time for a store backed instance in Amazon EBS-backed AMI is less than 1 minute whereas for Amazon instances store backed AMI is less than 5 minutes usually.

4. Differentiate between vertical and horizontal scaling in AWS.

Horizontal Scaling helps to change the number of nodes without changing the size whereas in Vertical Scaling the size, computing power are increased in AWS.

5. What is the total number of buckets that can be created in AWS by default ?

100 buckets can be created in AWS by default .Additional buckets can be added up to a maximum of 1,000 buckets with some limitations.

6. Differentiate between Amazon RDS, Redshift and Dynamo DB.

Amazon Redshift is a completely managed data warehouse service whereas dynamo DB is a NoSQL database offered as a service and Amazon RDS focus on relational database.

7. What Is Amazon Machine Image (ami)?

An Amazon Machine Image is a packaged environment containing a software configuration in which the machine images are like templates that are configured using an application servers and OS.

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8. Explain Storage For Amazon Ec2 Instance.?

An instance store provides temporary block-level storage for the instance located on disks that are attached to the host computer.

9. What Are The Security Best Practices For Amazon Ec2?

The Best practices for Amazon EC2 can be done by managing secure access to resources using identity federation, IAM users along with implementing the least permissive rules for a secure operating system and applications on the instance.

10. Can I Vertically Scale An Amazon Instance? How?

Yes. Vertically scaling of an AWS instance can be done up or down when instance size changed, and then restarted because of moving the VM to a different piece of hardware with the available resources.

11. How To Use Amazon Sqs?

The Amazon Sqs can be used by creating a queue followed by sending message and can be used followed by deleting the queue.

12. Name The Several Layers Of Cloud Computing?

The layers of Cloud Computing are Infrastructure as a Service (IaaS) which is the basic layer, Platform as a Service (PaaS), Software as a Service (SaaS), and Business Process Outsourcing (BPO).

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Infosys– AWS Interview Questions