Practice Test Geeks(DIS) Digital Imaging Specialist Certification Practice Test
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Cloud Infrastructure Flashcards

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

Read the first 7 Cloud Infrastructure flashcards as text

  1. Which protocol is specifically designed for efficient transmission of medical images over networks, making it critical in cloud imaging infrastructure?

    Answer: DICOM

    DICOM (Digital Imaging and Communications in Medicine) is the standard protocol for storing, transmitting, and managing medical imaging data.

  2. What is the purpose of pre-signed URLs in cloud object storage for imaging distribution?

    Answer: To provide time-limited, secure access to private image objects without exposing credentials

    Pre-signed URLs embed temporary credentials that expire, allowing secure, time-limited access to private imaging objects without requiring client authentication.

  3. In a hybrid cloud imaging architecture, what component securely connects an on-premise PACS system to cloud storage?

    Answer: VPN gateway or Direct Connect/ExpressRoute link

    A VPN gateway or dedicated private connection (Direct Connect/ExpressRoute) provides encrypted, reliable connectivity between on-premise PACS and cloud resources.

  4. A DIS professional observes high egress costs when cloud imaging servers retrieve AI model results. Which architecture change best reduces egress fees?

    Answer: Co-locate AI processing in the same cloud region as the imaging data

    Keeping compute and data in the same region eliminates cross-region data transfer fees, significantly reducing egress costs.

  5. Which cloud IAM concept groups permissions that can be assigned to users, roles, or service accounts in imaging system administration?

    Answer: Policy

    IAM policies are JSON documents that define permissions, and are attached to identities or resources to control what actions are allowed.

  6. When designing a cloud imaging system for HIPAA compliance, which data state requires encryption as a mandatory safeguard?

    Answer: Both data in transit and data at rest

    HIPAA technical safeguards require protecting ePHI in both transit and at rest, making encryption of both states mandatory for imaging systems.

  7. What is the main advantage of using managed Kubernetes (e.g., EKS, AKS, GKE) for containerized imaging microservices?

    Answer: The cloud provider manages the control plane, reducing operational overhead

    Managed Kubernetes offloads control plane maintenance, upgrades, and availability to the cloud provider, letting teams focus on application workloads.