Answer / Pawan Kumar Prajapati

You will incur costs with an Elastic IP Address (EIP) in AWS when it is allocated and unused for more than a few hours, or if it's associated with a stopped instance. The exact time before incurring costs may vary depending on the region.

Can we attach an ebs volume to more than one ec2 instance at the same time?

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Can you run multiple websites on an ec2 server using a single ip address?

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What is load balancer and how it works in aws?

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When should I use a Classic Load Balancer and when should I use an Application load balancer?

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What is the difference between scalability and flexibility?

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Do iam role can resolve any security issues?

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Is an internet gateway required to use peering connections?

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What are different types of instances?

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In a VPC how many EC2 instances, you can use?

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How quickly you can launch some default patterns of vpc networking?

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List various layers of cloud architecture?

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Does the redshift use postgres?

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