Amazon Web Services (AWS) - Interview Questions and Answers for 'Amazon ec2' - 43 question(s) found - Order By Newest Q1. What are the factors on which price classes are based on in case of EC2, S3, CloudFront and EBS ? Amazon Web Services (AWS)
Ans. EC2 - Time and Reservation , Instance Type ( Memory , Computation power )
S3 - Accessibility Frequency , Data Transfer , Storage Space
CloudFront - Geography, No of Locations
EBS - IOPS, Access Frequency Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws ec2  aws computing  amazon cloud computing  amazon ec2  aws s3  aws storage  amazon cloud storage  amazon s3  aws cloudfront  amazon cloudfront  aws ebsAns. If the computation required is Spiky and unpredictable.
If it's first time use.
If the lifespan of the application isn't known. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws ec2  aws computing  amazon cloud computing  amazon ec2Ans. If the usage is non continuous and have flexible start and End Time. For ex - Analysis , Research , mining etc. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws ec2  aws computing  amazon cloud computing  amazon ec2 spotAns. On Demand
Reserved
Spot
Dedicated Host Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws ec2  aws computing  amazon cloud computing  amazon ec2Ans. Keeping Low cost for processing , i would choose
Spot Price Plan
F1 or P3 Instance Type
Cold Hdd (SCI ) EBS Volume Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws ec2  aws computing  amazon cloud computing  amazon ec2 Q6. Which AWS services would you use if you have find a cheapest solution for an analytics application ? Amazon Web Services (AWS)
Ans. Computation
Spot Price Plan
F1 or P3 Instance Type
Cold Hdd (SCI ) EBS Volume
Storage
S3-IA Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws computation  aws ec2  aws computing  amazon cloud computing  amazon ec2 Q7. Can a EC2 instance have multiple Security Groups ? Can a single security group be assigned to multiple Ec2 instances ? If either of them is true , doesn't it result in conflict ? Amazon Web Services (AWS)
Ans. We can assign multiple security groups to single instance and we can use single security group with multiple instances.
It never results in conflict as security groups only have allow rules and no deny rules. Multiple security groups for an instance results in union of all rules. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws ec2  aws computing  amazon cloud computing  amazon ec2  aws security group Q8. What are the reasons to choose between reserved and on demand instances ? Server
Ans. In terms of compute options and configurations, Reserved Instances and On Demand instances are the same. The only difference between the two is that a Reserved Instance is one you rent (reserved) for a fixed duration, and in return you receive a discount on the base price of an On Demand instance. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws  aws ec2  aws computing  amazon cloud computing  amazon ec2  production support  Google Cloud Platform (GCP) Ans. You cannot reserve the time slot and they can be made to use whenever they are available.
AWS can Terminate the EC2 instance on their own even if it's in use. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws ec2  aws computing  amazon cloud computing  amazon ec2  aws ec2  aws computing  amazon cloud computing  amazon ec2 spotAns. We can use this check for variety of things -
1. Monitoring the status / Alarms in case it's down
2. Regulating traffic to healthy instances only through Load Balancer Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws ec2  aws computing  amazon cloud computing  amazon ec2Ans. Advantages -
Much Cheaper
Continuous scaling
Higher level and Serverless
Disadvantages -
Warm up time
Limited flexibility in terms of technologies
Limited control Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws lambda  aws serverless computing  amazon cloud serverless computing  amazon lambda  aws ec2  aws computing  amazon cloud computing  amazon ec2Ans. Yes Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws efs volume  aws ec2  aws computing  amazon cloud computing  amazon ec2Ans. Adding more security group, it works like a firewall Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws ec2  aws computing  amazon cloud computing  amazon ec2  aws ebs volume snapshot Asked in 1 Companies Ans. Attaching Volumes ( EBS / EFS ) on AWS Computing ( EC2, EKS ) Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws ebs  aws efs  aws ec2  aws computing  amazon cloud computing  amazon ec2  aws eksAns. Amazon Elastic Compute Cloud or EC2 provides scalable computing capacity in the AWS cloud. It can be used to create Virtual Environments , storage and configure. EC2 enables to upgrade or downgrade infrastructure according to the rules defined ( with fluctuation in latency, traffic etc ) Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws  aws ec2  aws computing  amazon cloud computing  amazon ec2  Elastic Compute Cloud  Amazon Elastic Compute Cloud Asked in 2 Companies Q16. What do you understand by "Scaling Trigger" ? Server
Ans. It's a configuration for auto scaling environment that specify the attributes / conditions for scaling instances up and down. For example - We may like environment to scale up when the number of requests / sec increases a particular threshold and scale down when it decreases below a threshold. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  AWS  Amazon AWS  Amazon EC2  Elastic Beanstalk  Auto Scaling  Scaling Trigger  production support Q17. How can we know how many instances are currently in service within an Elastic Beanstalk environment ? Amazon Web Services (AWS)
Ans. We can go to respective environment and check configuration and then scaling. It mentions that as current status like
Current status:
2 instance(s) in service, Min: 1, Max: 4
Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  AWS  Amazon AWS  Amazon EC2  Elastic Beanstalk  Auto ScalingAns. EC2 is elastics compute cloud is one of the amazon service and ec2 instance is one type of virtual server which you create from AMI. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  amazon ec2  aws ec2  aws computing  amazon cloud computing  amazon ec2Ans. EC2, EKS, EKC , Lambda Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws ec2  aws computing  amazon cloud computing  amazon ec2Ans. You can have reserved capacity with AWS Lambda. This guarantees that this number of concurrent Lambdas are always available for that function. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws  aws lambda  aws serverless computing  amazon cloud serverless computing  amazon lambda  aws ec2  aws computing  amazon cloud computing  amazon ec2Ans. Depend on its pricing module Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws ec2  aws computing  amazon cloud computing  amazon ec2Ans. 20 Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  EC2  aws ec2  aws computing  amazon cloud computing  amazon ecAns. If the usage is continuous , stable and predictable. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws ec2  aws computing  amazon cloud computing  amazon ec2 reservedAns. If there are regulatory requirements, or proprietary license to be used. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws ec2  aws computing  amazon cloud computing  amazon ec2 dedicated hostAns. R4 Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws ec2  aws computing  amazon cloud computing  amazon ec2Ans. T Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws ec2  aws computing  amazon cloud computing  amazon ec2 instance typeAns. F,I,G,H,T,D,R,M,C,P,X Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws ec2  aws computing  amazon cloud computing  amazon ec2  aws ec2  aws computing  amazon cloud computing  amazon ec2 instance typeAns. T and M Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws ec2  aws computing  amazon cloud computing  amazon ec2  aws ec2  aws computing  amazon cloud computing  amazon ec2 instance typeAns. No Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws ec2  aws computing  amazon cloud computing  amazon ec2Ans. By default, Root volume gets terminated whereas additional volume doesn't. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve  aws ebs  aws ebs volume  aws ec2  aws computing  amazon cloud computing  amazon ec2