DIS Cloud Infrastructure 2

Question 1

Which cloud storage class is most cost-effective for digital imaging archives that are accessed less than once per year?

Accepted Answer

Glacier Deep Archive

Answer

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

Question 2

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

Accepted Answer

Cross-region replication with versioning enabled

Answer

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

Question 3

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

Accepted Answer

Multipart upload

Answer

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

Question 4

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

Accepted Answer

To automatically transition or delete objects based on age

Answer

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

Question 5

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

Accepted Answer

Content Delivery Network (CDN)

Answer

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

(DIS) Digital Imaging Specialist Certification Practice Test