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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 architecture pattern uses a message queue between imaging capture systems and processing services to handle load spikes?

    Answer: Event-driven architecture with message queuing

    Message queues decouple producers from consumers, buffering burst image uploads so downstream processors work at a sustainable rate.

  2. A cloud imaging system's SLA guarantees 99.9% availability. Approximately how much downtime per month is permissible?

    Answer: About 43 minutes

    99.9% availability (three nines) allows roughly 43.8 minutes of downtime per month (0.1% of ~43,800 minutes).

  3. Which cloud storage feature prevents accidental or malicious deletion of critical imaging archives by retaining object versions?

    Answer: Versioning

    Enabling versioning keeps all previous versions of an object, allowing recovery from accidental deletions or overwrites of imaging files.

  4. When an imaging AI workload requires GPUs in the cloud, which instance category should a DIS professional select?

    Answer: GPU-accelerated compute instances

    GPU-accelerated instances (e.g., AWS p3/g4, Azure NC, GCP A100) provide the parallel processing needed for imaging AI model inference and training.

  5. What is the purpose of cloud resource tagging in a large imaging department managing multiple projects?

    Answer: To categorize resources for cost allocation, access control, and management

    Tags are key-value metadata labels applied to cloud resources, enabling cost reporting by project, environment, or department in imaging operations.

  6. A DIS engineer needs to run batch image processing jobs overnight at lowest cost. Which cloud compute option is most appropriate?

    Answer: Spot/preemptible instances

    Spot/preemptible instances offer steep discounts (up to 90%) and are ideal for fault-tolerant batch jobs that can handle interruptions.

  7. In cloud infrastructure for imaging, what does a VPC (Virtual Private Cloud) primarily provide?

    Answer: An isolated, private network environment within the cloud

    A VPC provides logically isolated networking within the cloud, allowing imaging systems to run with private IP ranges, subnets, and controlled routing.