Question #787
Which AWS services or features are recommended for creating backups of Amazon EC2 instances? (Choose two.)
EC2 Reserved Instances
EC2 Amazon Machine Images (AMIs)
Amazon Elastic Block Store (Amazon EBS) snapshots
AWS Shield
Amazon GuardDuty
Explanation
The correct answers are B (EC2 AMIs) and C (Amazon EBS snapshots).
- AMIs (B) create a full backup of an EC2 instance, including its operating system, applications, and data on attached EBS volumes. They are ideal for restoring entire instances.
- EBS Snapshots (C) provide incremental backups of EBS volumes, allowing point-in-time recovery of data stored on those volumes.
Other options are incorrect because:
- A (Reserved Instances) is a billing model, not a backup tool.
- D (AWS Shield) and E (Amazon GuardDuty) are security services for DDoS protection and threat detection, unrelated to backups.
Key Points:
1. AMIs capture the entire EC2 instance state.
2. EBS snapshots back up individual volumes efficiently.
3. Backup solutions differ from cost-saving or security services.
Answer
The correct answer is: BC