DIS System Architecture & Design 5

Question 1

In a high-availability digital imaging system, what is the purpose of a warm standby configuration?

Accepted Answer

A standby server running and synchronized with the primary, capable of taking over within minutes

Answer

A warm standby is a live server continuously synced with the primary that can assume traffic with minimal downtime, unlike a cold standby that requires restoration.

Question 2

Which aspect ratio and resolution combination is the ISO standard for A4 document scanning at 300 DPI, commonly used in digital imaging archival workflows?

Accepted Answer

2480 × 3508 pixels

Answer

An A4 page (8.27 × 11.69 inches) scanned at 300 DPI produces 2480 × 3508 pixels, the standard for document archiving.

Question 3

In a digital imaging system, which design pattern is most appropriate for converting between different image formats (TIFF, JPEG, PNG, WebP) without coupling the conversion logic to the rest of the application?

Accepted Answer

Strategy pattern with interchangeable codec implementations

Answer

The Strategy pattern allows different format conversion algorithms to be swapped at runtime without modifying the client code, keeping the system extensible.

Question 4

A DIS professional must choose between on-premises and cloud infrastructure for a high-volume image rendering pipeline. Which factor most strongly favors a cloud deployment?

Accepted Answer

Workloads are highly variable with large periodic spikes in rendering demand

Answer

Cloud infrastructure is most advantageous for variable workloads with spikes because you can scale compute elastically rather than over-provisioning for peak capacity.

Question 5

When implementing a digital asset management system, what is the primary purpose of defining a controlled vocabulary for image metadata?

Accepted Answer

To enforce consistent terminology for searchable tags, improving retrieval accuracy

Answer

A controlled vocabulary standardizes the terms used for keywording, preventing synonym inconsistencies and ensuring that searches return all relevant assets.

(DIS) Digital Imaging Specialist Certification Practice Test

(DIS) Digital Imaging Specialist Certification Practice Test

DIS System Architecture & Design 5