DIS Cheat Sheet 2026

The 30 highest-yield DIS facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. Why is data visualization important in DIS reporting? → It makes complex patterns easier to understand and communicate
2. What is the benefit of using file versioning? → Keeps multiple copies for safety and rollback
3. In offset lithography, what is the primary function of the blanket cylinder? → Transferring the inked image from the plate cylinder to the substrate
4. Under HIPAA, how must digital medical images be protected when transmitted over a network? → They must be encrypted using a compliant encryption standard
5. Why is regular backup important in file management? → To safeguard against data loss
6. What is 'overprinting' in prepress, as opposed to a knockout? → Printing one ink layer directly on top of another without removing the underlying color
7. What does a color gamut represent? → The complete range of colors a device can show
8. What differentiates quantitative from qualitative data in DIS? → Quantitative is numerical; qualitative is descriptive and categorical
9. Which standard defines the use of XMP (Extensible Metadata Platform) in digital imaging? → Adobe XMP Specification (ISO 16684)
10. What is dynamic range in image capture? → The ability to capture both light and dark details in one image
11. Why is regular review important in DIS risk management? → Conditions change and new risks emerge requiring updates
12. Which international standard defines the format for transmitting and storing medical imaging data? → DICOM
13. Which metric is used to measure the sharpness and resolving power of an imaging system? → MTF (Modulation Transfer Function)
14. What does the IPTC Photo Metadata Standard primarily govern? → Descriptive, administrative, and rights metadata for photographs
15. What is multi-factor authentication in DIS security? → Requiring two or more verification factors for access
16. What does the ICC stand for in the context of imaging color management standards? → International Color Consortium
17. What is the triple constraint in DIS project management? → The interdependent relationship between scope, time, and cost
18. What is trend analysis in DIS reporting? → Examining data over time to identify patterns and changes
19. What is the role of filters in image processing? → To apply effects or enhance features
20. Which storage option is best for archiving large image files? → Cloud or external storage
21. What is a lossless file format? → TIFF
22. Which quality metric measures the amount of usable tonal range an imaging device can capture from darkest to lightest? → Dynamic range
23. What is a risk matrix used for in DIS practice? → Evaluating risks by plotting likelihood against impact severity
24. Why is calibration important in image capture systems? → To align the capture device for accurate results
25. What is change management in DIS technology? → A structured process for evaluating and implementing changes safely
26. Why is documentation important in DIS technology? → It ensures knowledge transfer, troubleshooting, and operational continuity
27. What is the role of ICC profiles in color management? → Maintain consistent color output across devices
28. What is multi-factor authentication in DIS security? → Requiring two or more verification factors for access
29. Which technique blends multiple exposures for enhanced image detail? → HDR processing
30. What is the primary purpose of using a colorimetric reference target (e.g., Macbeth ColorChecker) during a QA capture session? → To measure and verify the color accuracy of the imaging system against known color values