AWS Certified Cloud Practitioner
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Which of the following can be attached to EC2 Instances to store data.
Real Exam
Community
RRitesh
0
A
Amazon Glacier
B
Amazon EBS Volumes
C
Amazon EBS Snapshots
D
Amazon SQS
Explanation:
Explanation
Amazon EBS (Elastic Block Store) volumes are durable, block-level storage devices that can be attached to EC2 instances to store data. Here's why each option is correct or incorrect:
- A. Amazon Glacier ❌ - This is an archival storage service for long-term data retention, not designed for direct attachment to EC2 instances
- B. Amazon EBS Volumes ✅ - Correct answer. EBS volumes are specifically designed to be attached to EC2 instances as block storage devices for data that requires frequent updates
- C. Amazon EBS Snapshots ❌ - These are point-in-time backups of EBS volumes, not storage devices that can be directly attached to instances
- D. Amazon SQS ❌ - This is a message queuing service, not a storage service that can be attached to EC2 instances
Key Points:
- EBS volumes provide persistent block storage for EC2 instances
- They can be used as system drives or for database applications
- Data persists independently of the instance lifecycle
- Multiple EBS volumes can be attached to a single EC2 instance
- Volumes are automatically replicated within their Availability Zone for durability
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