EC2 Interview Questions

Last Updated: Nov 10, 2023

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EC2 Interview Questions For Freshers

What is Elastic IP in EC2?

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How can you monitor your EC2 instances?

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What are the different pricing models for EC2 instances?

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What is the AWS Free Tier and how does it apply to EC2?

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Describe the boot process of an EC2 instance.

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What are the billing options available for EC2 instances?

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What is the difference between Amazon EBS and instance store?

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What is the default root device type for EC2 instances?

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Can you change the instance type of a running EC2 instance?

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What is an EC2 key pair?

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What is the role of an instance profile in EC2?

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Explain the use cases for using Elastic IP.

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What is the maximum number of Elastic IP addresses you can have per AWS account?

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Explain the difference between CPU credits and dedicated hosts for EC2 instances.

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What is Auto Scaling in EC2?

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How can you improve the performance of your EC2 instances?

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What is the default operating system for EC2 instances?

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What is a security group in EC2?

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Explain the difference between on-demand instances and spot instances.

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What is an EC2 instance type?

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What is an AMI?

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How can you access your EC2 instances?

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What is an instance?

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What is a virtual machine?

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What are the key benefits of using EC2?

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What is EC2?

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What is the maximum number of Elastic Network Interfaces (ENIs) you can attach to an EC2 instance?

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How can you encrypt data on an EC2 instance?

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What is an EC2 Placement Group?

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What are the different types of storage available in EC2?

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Explain the concept of EC2 instance metadata.

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What is the difference between an EC2 instance and an EBS volume?

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What is the purpose of termination protection in EC2?

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How can you move your EC2 instances from one availability zone to another?

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What is the maximum number of tags you can assign to an EC2 resource?

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EC2 Intermediate Interview Questions

What is a NAT gateway in EC2?

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What is the purpose of an EC2 Dedicated Host?

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What is the maximum number of instance types that can be launched in an EC2 Fleet?

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Explain the concept of an EC2 Fleet.

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What is the purpose of an EC2 Auto Scaling policy?

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What is the role of an EC2 Security Group?

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Explain the different states of an EC2 instance.

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What is the purpose of an EC2 instance status check?

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What is the difference between User-Data and Metadata in EC2?

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Explain the concept of Elastic GPU in EC2.

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What is the purpose of an EC2 instance user data script?

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What is the role of an EC2 Placement Group?

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Explain the concept of EBS-backed instances in EC2.

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How can you resize an EC2 instance?

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What is the purpose of an Amazon Machine Image (AMI) copy?

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Explain the concept of an EC2 Reserved Instance.

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What is the role of an EC2 Elastic IP address?

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What is the maximum number of Elastic Network Interfaces (ENIs) you can create per AWS Region?

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Explain the concept of Load Balancers in EC2.

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What is the purpose of an EC2 Instance Status Check?

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What is the maximum number of EBS volumes that can be attached to an EC2 instance?

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Explain the concept of instance storage in EC2.

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What is the role of an EC2 launch template?

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What is the maximum number of network interfaces you can attach to an EC2 instance?

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Explain the concept of an EC2 Dedicated Host.

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What is the purpose of user data in EC2?

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Explain the difference between an EC2 key pair and an SSL certificate.

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What are the different Amazon Machine Image (AMI) types?

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What is the maximum number of security groups you can associate with an EC2 instance?

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Explain the concept of an EC2 instance profile.

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What is the difference between an EC2 instance and an EC2 instance type?

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How can you enable detailed monitoring for your EC2 instances?

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What is the purpose of an EC2 instance role?

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What is the default behavior when an EC2 instance is stopped or terminated?

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Explain the concept of an EC2 Auto Scaling launch template.

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How can you configure Amazon CloudWatch alarms for EC2 instances?

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What is the role of an EC2 Elastic Network Interface (ENI)?

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What is the purpose of an EC2 spot fleet?

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Explain the concept of an EC2 lifecycle hook.

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Explain the concept of an EC2 Auto Scaling group.

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What is the purpose of an EC2 instance metadata service?

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EC2 Interview Questions For Experienced

What is the role of an EC2 Placement Group?

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What is the purpose of an EC2 Launch Template?

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Explain the concept of Amazon EC2 Nitro System.

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What is the difference between an EC2 instance store and Amazon EBS?

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What is the purpose of an EC2 Dedicated Instance?

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Explain the concept of EC2 Instance Connect.

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What is the role of an EC2 Dedicated Host Reservation?

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What is the purpose of an EC2 EFA-enabled instance?

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Explain the concept of EC2 Hibernate.

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What is the role of an EC2 Elastic Inference accelerator?

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What is the purpose of an EC2 Capacity Reservation?

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Explain the concept of EC2 Total Cost of Ownership (TCO).

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How can you use EC2 instances with AWS Outposts?

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Explain the concept of an Elastic Fabric Adapter (EFA) in EC2.

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What is the purpose of an Elastic Inference accelerator in EC2?

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Explain the concept of a Dedicated Host Reservation in EC2.

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How can you configure an EC2 instance to automatically join an ECS cluster?

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What is the role of an EC2 Load Balancer?

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Explain the concept of an EC2 Fleet.

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What is the purpose of an Elastic Fabric Adapter in EC2?

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What is the role of an EC2 Capacity Reservation?

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Explain the concept of an EC2 Container Instance.

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What is the purpose of an Amazon Machine Image (AMI)?

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