📦 Amazon S3 - DVA-C02 Practice Questions

Understand S3 storage classes, versioning, lifecycle policies, access control (bucket policies, ACLs, access points), encryption, pre-signed URLs, event notifications, and cross-region replication.

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2Exam Domains

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DVA-C02 S3 Question Bank (7 Questions)

Browse all 7 practice questions covering Amazon S3 for the DVA-C02 certification exam. Answers are intentionally hidden on this page so you can self-test first before checking results in quiz mode.

  1. Question 1Security

    A developer creates a pre-signed URL to allow a partner to upload a large file to a private S3 bucket. The URL expires after 1 hour. What is the most important security consideration when generating this URL?

    AThe URL must use HTTP, not HTTPS
    BThe pre-signed URL inherits the permissions of the IAM identity that generated it
    CThe pre-signed URL bypasses all S3 bucket policies
    DPre-signed URLs cannot be created for upload operations

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  2. Question 2Security

    An S3 bucket must enforce that all objects are encrypted at rest. Which bucket configuration enforces this?

    AEnable S3 versioning
    BSet a bucket policy that denies PutObject without x-amz-server-side-encryption header
    CEnable S3 Cross-Region Replication
    DEnable S3 Transfer Acceleration

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  3. Question 3Development with AWS Services

    A developer needs to migrate data from an S3 bucket in region us-east-1 to another bucket in eu-west-1 automatically for all new objects. Which feature achieves this?

    AS3 Cross-Region Replication (CRR)
    BS3 Same-Region Replication
    CAWS DataSync
    DS3 Batch Operations

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  4. Question 4Development with AWS Services

    A developer uses S3 Lifecycle rules. Which action transitions objects from S3 Standard to S3 Glacier Instant Retrieval after 90 days?

    AS3 Versioning rule
    BS3 Lifecycle transition rule with Days: 90
    CS3 Intelligent-Tiering policy
    DS3 Replication rule

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  5. Question 5Development with AWS Services

    A developer wants to receive a notification when an object with a specific prefix is uploaded to S3. Which event notification configuration achieves this?

    AS3 event notification with a filter prefix and SNS/SQS/Lambda as the destination
    BS3 lifecycle rule with a prefix filter
    CCloudTrail S3 data event with a filter
    DS3 Cross-Region Replication with a prefix filter

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  6. Question 6Security

    An S3 bucket hosts a static website with public objects. A developer wants to add authentication for a specific path. Which service combination achieves this without modifying S3?

    AS3 bucket policy with IP restriction
    BCloudFront with Lambda@Edge for authentication
    CRoute 53 with geolocation routing
    DAPI Gateway proxy to S3

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  7. Question 7Security

    A developer wants to control access to specific S3 objects per authenticated user without managing S3 bucket policies per user. Which is the BEST approach?

    ACreate a separate S3 bucket per user
    BUse Cognito Identity Pools with IAM policies using ${cognito-identity.amazonaws.com:sub} as the S3 prefix condition
    CUse S3 ACLs with per-object grants
    DUse Lambda to serve objects with authentication

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Key S3 Concepts for DVA-C02

s3bucketobjectstorage classversioninglifecyclepre-signed urlencryptionaccess pointevent notificationreplication

DVA-C02 S3 Exam Tips

Amazon S3 questions in DVA-C02 are typically scenario-based. Focus on application development patterns, event-driven integration, and secure coding on AWS. Priority concepts: s3, bucket, object, storage class, versioning, lifecycle.

What DVA-C02 Expects

  • Anchor your answer in select developer-friendly managed services and patterns that minimize custom undifferentiated code.
  • S3 scenarios for DVA-C02 are frequently mapped to Domain 1 (32%), Domain 2 (26%), so read the objective carefully before picking controls or architecture.
  • Expect multi-topic scenarios where S3 interacts with IAM, networking, storage, or observability patterns rather than appearing as an isolated question.
  • When two options are both technically valid, prefer the choice that best aligns with the exam's operational scope (Associate) and vendor best practices.

High-Value S3 Concepts

  • Know the core S3 building blocks cold: s3, bucket, object, storage class.
  • Review the edge-case features and limits for versioning, lifecycle; these details are commonly used to differentiate answer choices.
  • Practice service-integration reasoning: how S3 pairs with CloudFront, Lambda, KMS in real deployment patterns.
  • For DVA-C02, explain why the chosen S3 design meets reliability, security, and cost expectations better than the alternatives.

Common DVA-C02 Traps

  • Watch for using infrastructure-centric answers instead of application-centric ones.
  • Questions in Development with AWS Services often include distractors that look correct for S3 but violate least-privilege, durability, or availability requirements.
  • Avoid picking options purely by feature name; validate data path, failure handling, and governance impact before answering.
  • If the prompt hints at automation or repeatability, eliminate manual-only operational answers first.

Fast Review Checklist

  • Can you compare at least two S3 implementation paths and justify which one best fits the scenario?
  • Can you map the chosen answer back to Development with AWS Services (32%) outcomes for DVA-C02?
  • Can you explain security and access boundaries for S3 without relying on default-open assumptions?
  • Can you describe how S3 integrates with CloudFront and Lambda during failure, scaling, and monitoring events?

Exam Domains Covering S3

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