AWS, JavaScript, React - Deploy Web Apps on the Cloud - Amazon Machine Images (AMI)

This lecture introduces Amazon Machine Images (AMIs) and their role in EC2 instance deployment. It covers the types of AMIs, including those backed by Amazon EBS and Instance Store, and explains the concept of snapshots. The video also discusses launch permissions, block device mapping, and configuration options for AMIs. Additionally, it categorizes AMIs into AWS Marketplace, Community, and personal AMIs, highlighting their features and usage.

What is the primary purpose of an Amazon Machine Image (AMI) when launching an EC2 instance?

• To increase the computational power of the instance

• To enhance the security of the instance

• To store the initial configuration information

• To provide a backup of the instance

Which of the following is NOT a category of AMI launch permissions?

• Restricted

• Implicit

• Explicit

• Public

What does a block device mapping in an AMI specify?

• The persistent storage volumes to attach to the instance

• The computational power of the instance

• The security groups associated with the instance

• The network configuration of the instance

Which type of AMI is typically associated with a cost?

• Free AMIs

• My AMIs

• AWS Marketplace AMIs

• Community AMIs

What is a characteristic of Community AMIs?

• They are free and often include an operating system and additional software

• They are available for purchase on the AWS Marketplace

• They are created by individual users

• They are backed by Amazon EBS only