AWS Interview Question

Difference between AWS EBS and EFS?

EBS and EFS both are storage services from AWS . EBS – Elastic Block Store EBS is a block storage service . EBS volumes designed to attach single AWS EC2 instanceYou can format the disk with your desired generic file systems like ext4,NTFS,XFS,ZFS etc.You can attache and detach from EC2 instance easilyYou can extend the disk volume size onlineHaving options…

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AWS, AWS Interview Question

How to setup VPN connection between two AWS VPC

VPC – Virtual Private Cloud . The core network component in AWS. It provide isolated network environment .Normally communication between two VPCs not enabled . We can enable communication through VPC peering, AWS supports peering connections for same region,different region, same account or different AWS account . When we use VPC peering it use AWS backbone network . So it…

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AWS Interview Question

What is the difference between horizontal scaling and vertical scaling in cloud computing

Horizontal Scaling : Horizontal scaling means that you scale by adding more machines/nodes¬†into your pool of resources or scaling group.This is one of the biggest successive method when compare with vertical scaling . You can quickly scale-up and scale-in number of nodes to handle machine traffic without affecting the application. Most of the public cloud provider AWS,Google,Azure supports horizontal scaling…

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AWS, AWS Interview Question

What are the different types of encryption mechanism available in AWS to encrypt data at rest in s3 ?

Data protection refers to protecting data while in-transit (as it travels to and from Amazon S3) and at rest (while it is stored on disks in Amazon S3 data centers) 1.Server-Side Encryption Request Amazon S3 to encrypt your object before saving it on disks in its data centers and then decrypt it when you download the objects. 2.Client-Side Encryption  Encrypt…

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