Amazon Web Services (AWS) - Interview Questions and Answers for 'Amazon Web Services (AWS)' | Search Interview Question

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Q181. Which AWS service can be used for creating Billing Alarms ?

Amazon Web Services (AWS)

Ans. AWS CloudWatch

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Q182. What does the following Policy mean

{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"s3:PutObject",
"s3:GetObject",
"s3:DeleteObject"
],
"Resource": [
"arn:aws:s3:::dev-bucket/*",
"arn:aws:s3:::qa-bucket/*"
]
}
]
}

Amazon Web Services (AWS)

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Q183. Does IAM allow multifactor authentication ?

Amazon Web Services (AWS)

Ans. Yes

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Q184. Does IAM allow Biometric authentication ?

Amazon Web Services (AWS)

Ans. No

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Q185. What is the difference between Programmatic access and console access ?

Amazon Web Services (AWS)

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Q186. Difference between administrative and power user access ?

Amazon Web Services (AWS)

Ans. Power Users don't have access to manage Users and Group permissions in IAM whereas Administrative users do.

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Q187. What is Power User Access in AWS ?

Amazon Web Services (AWS)

Ans. Access to all AWS Services except for management of groups and users within IAM.

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Q188. What are the advantage of having Edge Locations ?

Amazon Web Services (AWS)

Ans. It saves Network traffic and facilitates faster delivery by hosting bulk media and cached data near to client.

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Q189. Which AWS service is provided by Edge location ?

Amazon Web Services (AWS)

Ans. As Edge location only host cached content, Amazon CDN service or CloudFront is provided on these locations.

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Q190. Difference between Region , Availability zone and Edge Locations ?

Amazon Web Services (AWS)

Ans. A Region is a Geographical entity like US-East , US-West etc. Each Region may have multiple availability zones where each zone comprise of 1 or more Data Center located with each other.

Edge Locations are the sites that hosts cached content for faster delivery and for saving network traffic as they feed content from sites that are local or near to consumption.

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Q191. What are Database services in AWS ?

Amazon Web Services (AWS)

Ans. RDS, DynamoDB, Elastic Cache,Redshift,Neptune , DocumentDB

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Q192. Which region is the latest and most popular in AWS ? What are the advantages and disadvantages of using this region ?

Amazon Web Services (AWS)

Ans. US-East Virginia

This is the oldest and most popular region. All new features are rolled first in this region and hence they are first available there. The downside is that because of experimentation with new services, unavailability time is quite high.

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Q193. What are some of the AWS storage services ?

Amazon Web Services (AWS)

Ans. S3, EFS, Glacier

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Q194. What are different compute services in AWS ?

Amazon Web Services (AWS)

Ans. EC2, Lambda, EKS , ECR, ECS

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Q195. When was AWS launched ?

Amazon Web Services (AWS)

Ans. 2006

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Q196. Which was the first service launched by AWS ?

Amazon Web Services (AWS)

Ans. Simple Queue Service ( SQS )

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Q197. Which AMI did you use for launching your EC2 instances ?

Amazon Web Services (AWS)

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Q198. What is the best AWS AMI for Data Science ?

Amazon Web Services (AWS)

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Q199. What does AMI include ?

Amazon Web Services (AWS)

Ans. A template for the instance.

Launch permission decisions

A block device mapping, when an instance is launched it determines the volumes to attach to that instances.

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Q200. What is the relationship between instances and AMI ?

Amazon Web Services (AWS)

Ans. AMI provides the templating for creation of instances. So a single image can be used to launch multiple instances.

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Q201. Difference between AWS Cloud Formation and AWS AMI ?

Amazon Web Services (AWS)

Ans. AMI is an Amazon Machine Image. It contains the configuration to enable to boot up an EC2 instance with said configuration whereas Cloud formation is a templating language that allows to describe how to build a VPC and also allows you to create AWS services

AMI is templating specific to instances whereas the scope of CloudFormation templating is much bigger. CloudFormation could use AMI for launching instances along with other services.

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Q202. How is a WAF different from ip tables ?

Amazon Web Services (AWS)

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Q203. You have a webserver on an ec2 instance. Your instance can get to the internet, but nobody on the internet can get to your webserver. Describe how you would troubleshoot.

Amazon Web Services (AWS)

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Q204. Design an e commerce application using AWS ? What AWS services will you use ?

Amazon Web Services (AWS)

Ans. CloudFront for Static Media and cached content
EC2 and EKS ( Docker ) for main application computing
RDS and DynamoDB for Database
Lambda ( computing ) for running back end cron jobs
Kinesis for streaming and SQS for queuing
CloudWatch for Monitoring
CloudFormation for Infrastructure templating
S3 for Object Storage

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Q205. How does AWS Lambda handle failure during event processing?

Amazon Web Services (AWS)

Ans. In AWS Lambda we can run a function in synchronous or asynchronous mode. In synchronous mode, if AWS Lambda function fails, then it will just give an exception to the calling application. In asynchronous mode, if AWS Lambda function fails then it will retry the same function at least 3 times.If AWS Lambda is running in response to an event in Amazon DynamoDB or Amazon Kinesis, then the event will be retried till the Lambda function succeeds or the data expires. In DynamoDB or Kinesis, AWS maintains data for at least 24 hours.

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Q206. What are the different types of load balancing options provided by Amazon Elastic Load Balancing (ELB)?

Amazon Web Services (AWS)

Ans. Application load balancing
Network load balancing
Classic load balancing

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Q207. What is AWS Snowball?

Amazon Web Services (AWS)

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Q208. What is Geo Targeting in Amazon CloudFront?

Amazon Web Services (AWS)

Ans. Geo Targeting will the users country of origin and pass along with country code to you in the cloudFront viewer country header.

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Q209. What are the different types of actions in Object Lifecycle Management in Amazon S3?

Amazon Web Services (AWS)

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Q210. Can we do Cross Region replication in Amazon S3 without enabling versioning on a bucket?

Amazon Web Services (AWS)

Ans. Yes

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