Performance Optimization Flashcards
7 cards from real GMI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Performance Optimization flashcards as text
To optimize a multi-page publication for offset printing, which PDF compression method preserves sharp edges on text and line art?
Answer: ZIP compression for line art and JPEG for continuous-tone images
ZIP compression is lossless and ideal for sharp-edged line art, while JPEG efficiently compresses continuous-tone photographic content.
When batch-processing color corrections across hundreds of images, which approach minimizes processing time while maintaining consistency?
Answer: Use a Photoshop action with a calibrated adjustment layer
A Photoshop action with calibrated adjustment layers automates consistent corrections across all images in a single batch operation.
In graphic reproduction, what does 'GCR' (Gray Component Replacement) primarily optimize?
Answer: Ink consumption and drying time in print
GCR replaces CMY gray components with black ink, reducing total ink coverage and improving drying performance on press.
A workflow uses JDF (Job Definition Format) to automate press-to-prepress communication. The primary performance benefit is:
Answer: Elimination of manual data re-entry between systems
JDF automates job information exchange between systems, eliminating manual re-entry and reducing workflow bottlenecks.
Which technique best reduces moiré patterns when scanning previously printed halftone artwork, improving output quality?
Answer: Using a descreen filter set to the original halftone frequency
A descreen filter specifically targets and removes the halftone dot pattern at the frequency it was originally printed, minimizing moiré artifacts.
For a digital press workflow, what is the most effective way to handle variable data printing (VDP) without creating excessively large print files?
Answer: Use PPML or PDF/VT with reusable object streams
PPML and PDF/VT store fixed graphic elements once as reusable objects, dramatically reducing file size and RIP processing time for VDP jobs.
Which color rendering intent should be selected when converting photographic images to a smaller-gamut CMYK profile to preserve overall tonal relationships?
Answer: Perceptual
Perceptual rendering intent compresses the entire source gamut to fit the destination, maintaining tonal relationships even when colors must be remapped.