AWS Certified Cloud Practitioner
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A company needs to deploy Amazon EC2 instances from a component that defines the operating system and includes pre-installed applications. Which AWS service or feature should the company use to meet this requirement?
Real Exam
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RRitesh
A
Security group
B
Elastic network interface
C
Amazon Elastic Block Store (Amazon EBS)
D
Amazon Machine Image (AMI)
Explanation:
Explanation
An Amazon Machine Image (AMI) is the correct choice because:
- AMI Definition: An AMI is a template that contains a software configuration (operating system, application server, and applications) required to launch an EC2 instance
- Pre-installed Applications: AMIs can include pre-installed applications, configurations, and software packages
- Template-based Deployment: When you launch an EC2 instance, you select an AMI that defines the operating system and any pre-installed software
Why other options are incorrect:
- Security Group: A virtual firewall that controls inbound and outbound traffic for EC2 instances
- Elastic Network Interface: A virtual network interface that you can attach to an EC2 instance in a VPC
- Amazon EBS: A block storage service used for data storage, not for defining operating systems or pre-installed applications
Key Points:
- AMIs provide the foundational template for EC2 instances
- They encapsulate the operating system, application stack, and configuration
- AWS provides many pre-built AMIs, and you can create custom AMIs with your specific requirements
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