AWS · Storage interview questions

72 AWS · Storage questions from the Cloud bank, written for Indian campus drives and tech interviews. Every question has a verified answer and an AI-tutor explanation on placd.

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1. What is S3?

Junior
  1. A.speeds up uploads to S3 by routing through CloudFront edge locations
  2. B.keeps multiple variants of an object in the same bucket to protect against overwrites and deletes
  3. C.object storage service with 11 nines (99.999999999%) of durability
  4. D.a storage class for infrequently accessed data with lower storage but higher retrieval cost

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2. Which term means: "object storage service with 11 nines (99.999999999%) of durability"?

Junior
  1. A.S3 Object Lock
  2. B.S3 Transfer Acceleration
  3. C.S3 Bucket Policy
  4. D.S3

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3. Which statement is correct?

Junior
  1. A.S3 — a storage class for infrequently accessed data with lower storage but higher retrieval cost
  2. B.S3 — object storage service with 11 nines (99.999999999%) of durability
  3. C.S3 — an S3 class that automatically moves objects between tiers based on access patterns
  4. D.S3 — a high-performance managed file system for HPC, ML, and media workloads

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4. What is S3 Standard?

Junior
  1. A.a hybrid service exposing AWS storage to on-premises apps via file, volume, or tape interfaces
  2. B.a storage class for infrequently accessed data with lower storage but higher retrieval cost
  3. C.prevents objects from being deleted or overwritten for a fixed period (WORM)
  4. D.the default S3 storage class for frequently accessed data with low latency

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5. Which term means: "the default S3 storage class for frequently accessed data with low latency"?

Junior
  1. A.S3 Standard-IA
  2. B.EFS
  3. C.S3 Standard
  4. D.S3

Answer + AI explanation with Pro

6. Which statement is correct?

Junior
  1. A.S3 Standard — a high-performance managed file system for HPC, ML, and media workloads
  2. B.S3 Standard — a storage class for infrequently accessed data with lower storage but higher retrieval cost
  3. C.S3 Standard — Elastic File System; a fully managed, elastic NFS file system shareable across many instances
  4. D.S3 Standard — the default S3 storage class for frequently accessed data with low latency

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7. What is S3 Glacier Deep Archive?

Junior
  1. A.the lowest-cost S3 storage class for long-term archival with hours-long retrieval
  2. B.the default S3 storage class for frequently accessed data with low latency
  3. C.Elastic File System; a fully managed, elastic NFS file system shareable across many instances
  4. D.an S3 class that automatically moves objects between tiers based on access patterns

Answer + AI explanation with Pro

8. Which term means: "the lowest-cost S3 storage class for long-term archival with hours-long retrieval"?

Junior
  1. A.S3 Lifecycle Policy
  2. B.S3 Glacier Deep Archive
  3. C.S3 Cross-Region Replication
  4. D.S3

Answer + AI explanation with Pro

9. Which statement is correct?

Junior
  1. A.S3 Glacier Deep Archive — a resource-based JSON policy that grants or denies access to a bucket and its objects
  2. B.S3 Glacier Deep Archive — the default S3 storage class for frequently accessed data with low latency
  3. C.S3 Glacier Deep Archive — the lowest-cost S3 storage class for long-term archival with hours-long retrieval
  4. D.S3 Glacier Deep Archive — an S3 class that automatically moves objects between tiers based on access patterns

Answer + AI explanation with Pro

10. What is S3 Intelligent-Tiering?

Mid
  1. A.a high-performance managed file system for HPC, ML, and media workloads
  2. B.an S3 class that automatically moves objects between tiers based on access patterns
  3. C.keeps multiple variants of an object in the same bucket to protect against overwrites and deletes
  4. D.a hybrid service exposing AWS storage to on-premises apps via file, volume, or tape interfaces

Answer + AI explanation with Pro

11. Which term means: "an S3 class that automatically moves objects between tiers based on access patterns"?

Mid
  1. A.S3 Glacier Deep Archive
  2. B.S3 Intelligent-Tiering
  3. C.S3 Object Lock
  4. D.S3 Standard-IA

Answer + AI explanation with Pro

12. Which statement is correct?

Mid
  1. A.S3 Intelligent-Tiering — an S3 class that automatically moves objects between tiers based on access patterns
  2. B.S3 Intelligent-Tiering — a resource-based JSON policy that grants or denies access to a bucket and its objects
  3. C.S3 Intelligent-Tiering — the lowest-cost S3 storage class for long-term archival with hours-long retrieval
  4. D.S3 Intelligent-Tiering — object storage service with 11 nines (99.999999999%) of durability

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13. What is S3 Lifecycle Policy?

Mid
  1. A.the lowest-cost S3 storage class for long-term archival with hours-long retrieval
  2. B.rules that transition or expire objects between storage classes over time
  3. C.a storage class for infrequently accessed data with lower storage but higher retrieval cost
  4. D.speeds up uploads to S3 by routing through CloudFront edge locations

Answer + AI explanation with Pro

14. Which term means: "rules that transition or expire objects between storage classes over time"?

Mid
  1. A.S3 Standard
  2. B.S3 Lifecycle Policy
  3. C.FSx for Lustre
  4. D.S3

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15. Which statement is correct?

Mid
  1. A.S3 Lifecycle Policy — the lowest-cost S3 storage class for long-term archival with hours-long retrieval
  2. B.S3 Lifecycle Policy — prevents objects from being deleted or overwritten for a fixed period (WORM)
  3. C.S3 Lifecycle Policy — the default S3 storage class for frequently accessed data with low latency
  4. D.S3 Lifecycle Policy — rules that transition or expire objects between storage classes over time

Answer + AI explanation with Pro

16. What is S3 Versioning?

Mid
  1. A.Elastic File System; a fully managed, elastic NFS file system shareable across many instances
  2. B.keeps multiple variants of an object in the same bucket to protect against overwrites and deletes
  3. C.a storage class for infrequently accessed data with lower storage but higher retrieval cost
  4. D.automatic asynchronous copying of objects from a bucket to a bucket in another region

Answer + AI explanation with Pro

17. Which term means: "keeps multiple variants of an object in the same bucket to protect against overwrites and deletes"?

Mid
  1. A.S3
  2. B.S3 Versioning
  3. C.S3 Bucket Policy
  4. D.S3 Cross-Region Replication

Answer + AI explanation with Pro

18. Which statement is correct?

Mid
  1. A.S3 Versioning — object storage service with 11 nines (99.999999999%) of durability
  2. B.S3 Versioning — the default S3 storage class for frequently accessed data with low latency
  3. C.S3 Versioning — keeps multiple variants of an object in the same bucket to protect against overwrites and deletes
  4. D.S3 Versioning — speeds up uploads to S3 by routing through CloudFront edge locations

Answer + AI explanation with Pro

19. What is S3 Cross-Region Replication?

Senior
  1. A.rules that transition or expire objects between storage classes over time
  2. B.a hybrid service exposing AWS storage to on-premises apps via file, volume, or tape interfaces
  3. C.automatic asynchronous copying of objects from a bucket to a bucket in another region
  4. D.the lowest-cost S3 storage class for long-term archival with hours-long retrieval

Answer + AI explanation with Pro

20. Which term means: "automatic asynchronous copying of objects from a bucket to a bucket in another region"?

Senior
  1. A.S3 Cross-Region Replication
  2. B.S3
  3. C.S3 Standard
  4. D.S3 Transfer Acceleration

Answer + AI explanation with Pro

21. Which statement is correct?

Senior
  1. A.S3 Cross-Region Replication — an S3 class that automatically moves objects between tiers based on access patterns
  2. B.S3 Cross-Region Replication — automatic asynchronous copying of objects from a bucket to a bucket in another region
  3. C.S3 Cross-Region Replication — a storage class for infrequently accessed data with lower storage but higher retrieval cost
  4. D.S3 Cross-Region Replication — object storage service with 11 nines (99.999999999%) of durability

Answer + AI explanation with Pro

22. What is EFS?

Senior
  1. A.Elastic File System; a fully managed, elastic NFS file system shareable across many instances
  2. B.object storage service with 11 nines (99.999999999%) of durability
  3. C.a resource-based JSON policy that grants or denies access to a bucket and its objects
  4. D.the lowest-cost S3 storage class for long-term archival with hours-long retrieval

Answer + AI explanation with Pro

23. Which term means: "Elastic File System; a fully managed, elastic NFS file system shareable across many instances"?

Senior
  1. A.S3 Cross-Region Replication
  2. B.S3 Standard-IA
  3. C.EFS
  4. D.S3 Glacier Deep Archive

Answer + AI explanation with Pro

24. Which statement is correct?

Senior
  1. A.EFS — a hybrid service exposing AWS storage to on-premises apps via file, volume, or tape interfaces
  2. B.EFS — a storage class for infrequently accessed data with lower storage but higher retrieval cost
  3. C.EFS — keeps multiple variants of an object in the same bucket to protect against overwrites and deletes
  4. D.EFS — Elastic File System; a fully managed, elastic NFS file system shareable across many instances

Answer + AI explanation with Pro

25. What does aws s3 cp do?

Junior
  1. A.applies lifecycle transition and expiration rules to a bucket
  2. B.configures cross-region or same-region replication rules on a bucket
  3. C.copies files or objects to and from S3 buckets
  4. D.synchronizes a local directory with an S3 prefix, copying only changed files

Answer + AI explanation with Pro

26. Which command will copies files or objects to and from S3 buckets?

Junior
  1. A.aws s3 ls
  2. B.aws s3api put-bucket-lifecycle-configuration
  3. C.aws s3 sync
  4. D.aws s3 cp

Answer + AI explanation with Pro

27. Which statement is correct?

Junior
  1. A.aws s3 cp — copies files or objects to and from S3 buckets
  2. B.aws s3 cp — lists buckets or objects within an S3 bucket or prefix
  3. C.aws s3 cp — sets default server-side encryption configuration on a bucket
  4. D.aws s3 cp — applies lifecycle transition and expiration rules to a bucket

Answer + AI explanation with Pro

28. What does aws s3 ls do?

Junior
  1. A.sets default server-side encryption configuration on a bucket
  2. B.configures cross-region or same-region replication rules on a bucket
  3. C.lists buckets or objects within an S3 bucket or prefix
  4. D.creates (makes) a new S3 bucket

Answer + AI explanation with Pro

29. Which command will lists buckets or objects within an S3 bucket or prefix?

Junior
  1. A.aws s3api put-bucket-encryption
  2. B.aws s3api put-bucket-versioning
  3. C.aws s3 presign
  4. D.aws s3 ls

Answer + AI explanation with Pro

30. Which statement is correct?

Junior
  1. A.aws s3 ls — enables or suspends versioning on an S3 bucket
  2. B.aws s3 ls — synchronizes a local directory with an S3 prefix, copying only changed files
  3. C.aws s3 ls — generates a time-limited pre-signed URL granting temporary access to an S3 object
  4. D.aws s3 ls — lists buckets or objects within an S3 bucket or prefix

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