AWS Certified Cloud Practitioner
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A company plans to migrate on-premises Internet Small Computer Systems Interface (iSCSI) storage to AWS. The company needs low-latency access to the stored data. The company also must minimize infrastructure changes to workloads that use the storage.
Which AWS storage solution will meet these requirements?
Real Exam
Community
RRitesh
A
Amazon Elastic Block Store (Amazon EBS)
B
Amazon S3 File Gateway
C
AWS Storage Gateway Tape Gateway
D
AWS Storage Gateway Volume Gateway
Explanation:
Explanation
AWS Storage Gateway Volume Gateway is the correct solution because:
-
Low-latency access: Volume Gateway provides cached volumes that maintain frequently accessed data locally on-premises while storing the full dataset in AWS, ensuring low-latency access to active data
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Minimizes infrastructure changes: Volume Gateway presents iSCSI block storage to on-premises applications, allowing existing workloads to continue using the same iSCSI protocol without requiring application modifications
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Seamless migration: It enables a hybrid storage model where data can be gradually migrated to AWS while maintaining local performance
Why other options are incorrect:
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Amazon EBS: Requires EC2 instances and doesn't provide direct on-premises access
-
Amazon S3 File Gateway: Provides file-based (NFS/SMB) access, not block-level iSCSI storage
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AWS Storage Gateway Tape Gateway: Designed for backup/archival to virtual tapes, not for active low-latency block storage
Volume Gateway specifically addresses the requirement for maintaining iSCSI compatibility while leveraging AWS cloud storage.
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