Amazon Web Services (AWS) - Interview Questions and Answers for 'Aws ec2' | Search Interview Question

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Q31. What are the different price options available for EC2 ?

Amazon Web Services (AWS)

Ans. On Demand
Reserved
Spot
Dedicated Host

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Q32. What is the use case for "Dedicated Host" EC2 plan ?

Amazon Web Services (AWS)

Ans. If there are regulatory requirements, or proprietary license to be used.

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Q33. What is the use case for "Spot" EC2 plan ?

Amazon Web Services (AWS)

Ans. If the usage is non continuous and have flexible start and End Time. For ex - Analysis , Research , mining etc.

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Q34. What is the use case for "Reserved" EC2 plan ?

Amazon Web Services (AWS)

Ans. If the usage is continuous , stable and predictable.

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Q35. What is the use case for "On Demand" EC2 ?

Amazon Web Services (AWS)

Ans. If the computation required is Spiky and unpredictable.

If it's first time use.

If the lifespan of the application isn't known.

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Q36. What is the default limit on number of EC2 instances in each region ?

Amazon Web Services (AWS)

Ans. 20

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Q37. How do you usually choose which type of EC2 Instance you would like to Use ?

Amazon Web Services (AWS)

Ans. Depend on its pricing module

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Q38. Can we reserve resources in AWS Lambda just like we do for Ec2 instances ?

Amazon Web Services (AWS)

Ans. You can have reserved capacity with AWS Lambda. This guarantees that this number of concurrent Lambdas are always available for that function.

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Q39. What are the benefits of using AWS Lambda over EC2 ?

Amazon Web Services (AWS)

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Q40. What are some of the computation services provided by AWS ?

Amazon Web Services (AWS)

Ans. EC2, EKS, EKC , Lambda

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Q41. What is EC2 and EC2 instance ?

Amazon Web Services (AWS)

Ans. 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.

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Q42. 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.

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Q43. What is the difference between Reserved and On Demand instance ?

Amazon Web Services (AWS)

Ans. On demand instance is normal instance means if you create first time so you can use on demand instance, in this instance you can create simple server like 2 gb RAM, 1 core CPU, GP2 30 GB SSD....etc.

and Reserved instance is you can create server and its reserved for 2-3 years and when you give back to this server on AWS they give you discount but on demand and reserved instance price are same.

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Q44. What is Amazon EC2 ?

Amazon Web Services (AWS)

Ans. 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 )

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