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AWS Certified SysOps Administrator · Exam domain
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1. A cloud engineer needs to create a point-in-time backup of an EBS volume attached to a running EC2 instance. Which AWS service or feature should they use to accomplish this?
Explanation
EBS Snapshots create point-in-time backups of EBS volumes stored in S3. They are incremental, capturing only changed blocks since the last snapshot, making them efficient for backup and recovery.
2. An organization wants to copy an EBS snapshot from us-east-1 to eu-west-1 to support disaster recovery. What must they consider when copying the snapshot across regions?
Explanation
EBS snapshots support cross-region copy. When copying encrypted snapshots, you must specify the KMS key in the destination region since keys are region-specific and cannot be shared across regions.
3. A company has on-premises backup software that writes to tape media. They want to move to a cloud-based backup solution without changing their existing backup application. Which AWS Storage Gateway type best fits this requirement?
Explanation
Tape Gateway presents a virtual tape library (VTL) that integrates with existing backup software using iSCSI. Virtual tapes are stored in S3 and can be archived to S3 Glacier, replacing physical tape infrastructure.
4. An enterprise needs on-premises applications to access cloud-backed storage with low latency for frequently accessed data while seamlessly backing up all data to AWS. Which Storage Gateway configuration achieves this?
Explanation
Volume Gateway cached mode stores primary data in S3 and caches hot data locally, providing low-latency access to frequently used data while reducing on-premises storage needs and keeping backups in AWS.
5. A database administrator wants to ensure their RDS MySQL instance can be restored to any point within the last 7 days. Which RDS feature provides this capability?
Explanation
RDS Automated Backups (retention 1–35 days) store daily snapshots plus transaction logs, enabling point-in-time recovery to any second within the retention window, which manual snapshots alone cannot provide.
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