โ† All DIS Flashcard Decks

Cloud Infrastructure Flashcards

7 cards from real DIS practice questions. Tap to flip, then mark Knew It or Still Learning โ€” missed cards come back until you master them.

Read the first 7 Cloud Infrastructure flashcards as text
  1. Which cloud storage class is most cost-effective for digital imaging archives that are accessed less than once per year?

    Answer: Glacier Deep Archive

    Glacier Deep Archive offers the lowest cost for long-term archival data retrieved rarely, making it ideal for inactive imaging archives.

  2. A DIS professional needs to replicate imaging data across two geographic regions for disaster recovery. Which strategy best achieves this?

    Answer: Cross-region replication with versioning enabled

    Cross-region replication with versioning ensures data is duplicated to a geographically separate region, protecting against regional outages.

  3. When uploading large DICOM imaging files to cloud storage, which transfer method minimizes upload time and reduces failure risk?

    Answer: Multipart upload

    Multipart upload splits large files into chunks uploaded in parallel, improving throughput and allowing resume on partial failure.

  4. In a cloud imaging pipeline, what is the primary purpose of an object lifecycle policy?

    Answer: To automatically transition or delete objects based on age

    Lifecycle policies automate transitioning objects to cheaper storage tiers or deleting them after a defined period, reducing costs.

  5. Which network architecture element reduces latency for globally distributed imaging clients retrieving the same radiographic files?

    Answer: Content Delivery Network (CDN)

    A CDN caches content at edge locations near users, dramatically reducing retrieval latency for frequently accessed imaging files.

  6. A hospital imaging system must ensure that cloud-stored patient images are encrypted with keys the hospital controls. Which approach satisfies this?

    Answer: Client-side encryption with customer-managed keys (CMK)

    Customer-managed keys (CMK) give the hospital full control over encryption keys, ensuring they can revoke access independent of the cloud provider.

  7. Which cloud service model allows a DIS professional to deploy a custom PACS application without managing the underlying operating system?

    Answer: Platform as a Service (PaaS)

    PaaS provides a managed runtime environment where developers deploy applications without patching or maintaining the underlying OS.