DIS Output, Archiving & File Management 3

Question 1

A photographer needs to deliver 4K images for billboard printing at 300 PPI. The billboard is 10 ft × 20 ft. What is the minimum pixel dimension on the long side?

Accepted Answer

72,000 px

Answer

20 ft × 12 in/ft × 300 PPI = 72,000 pixels on the long side; however, large-format viewing distance allows lower PPI in practice.

Question 2

Which PDF/X standard is specifically designed for blind exchange of digital advertising files between agencies and publishers?

Accepted Answer

PDF/X-1a

Answer

PDF/X-1a requires all colors to be CMYK or spot, all fonts embedded, and no RGB or transparency—ideal for predictable ad exchange.

Question 3

When exporting from Lightroom for web delivery, which sharpening setting is designed to compensate for the softening effect of resampling?

Accepted Answer

Output sharpening set to Screen at Standard amount

Answer

Lightroom's Output Sharpening > Screen applies edge-targeted sharpening calibrated to compensate for the softening introduced during downsampling.

Question 4

What does the term 'bit depth' determine in a printed digital image file?

Accepted Answer

The number of tonal levels available per color channel

Answer

Bit depth defines how many discrete tonal values exist per channel; 8-bit gives 256 levels, while 16-bit gives 65,536, enabling smoother gradients.

Question 5

A studio uses a NAS RAID 5 array for active project storage. What is the minimum number of drives required for RAID 5?

Accepted Answer

3

Answer

RAID 5 requires a minimum of 3 drives: data is striped across all drives with parity distributed so any single drive can fail without data loss.

(DIS) Digital Imaging Specialist Certification Practice Test

(DIS) Digital Imaging Specialist Certification Practice Test

DIS Output, Archiving & File Management 3