IAB Digital Display Advertising 1 — Questions and Answers
Question 1: What is the pixel dimension of the IAB's standard 'Medium Rectangle' ad unit?
- 728×90
- 300×250 (Correct answer)
- 160×600
- 320×50
Correct answer: 300×250
The Medium Rectangle (300×250 pixels) is one of the most widely used IAB standard ad units, commonly embedded within webpage content on both desktop and mobile.
Question 2: What does the IAB's LEAN acronym stand for in its ad principles?
- Light, Encrypted, Ad-Choices, Non-invasive (Correct answer)
- Large, Engaging, Animated, Networked
- Linked, Effective, Automated, Native
- Licensed, Enhanced, Ad-verified, Neutral
Correct answer: Light, Encrypted, Ad-Choices, Non-invasive
LEAN stands for Light (small file size), Encrypted (served over HTTPS), Ad Choices (user control), and Non-invasive (respects user experience), forming the IAB's framework for better digital ads.
Question 3: What was the primary purpose of the IAB's 'New Ad Portfolio' introduced in 2017?
- To immediately retire all legacy fixed-pixel display formats
- To create flexible, aspect-ratio-based ad units that adapt across devices (Correct answer)
- To standardize exclusively mobile-only ad formats
- To define auction-based pricing models for premium display inventory
Correct answer: To create flexible, aspect-ratio-based ad units that adapt across devices
The IAB New Ad Portfolio introduced flexible 'fluid' ad units defined by aspect ratios rather than fixed pixel dimensions, enabling adaptability across varying screen sizes and devices.
Question 4: What is the standard pixel dimension of the IAB 'Billboard' ad unit?
- 970×90
- 970×250 (Correct answer)
- 728×250
- 1000×300
Correct answer: 970×250
The IAB Billboard is a 970×250 pixel format, one of the larger standard display units designed for high-impact brand advertising across the top of a webpage.
Question 5: According to IAB guidelines, what does 'polite loading' mean for display ads?
- Ads must display a courtesy message before appearing
- Ad sub-content loads only after the host page's main content has finished loading (Correct answer)
- Ads must request user permission before auto-playing any audio
- Ad content must be pre-approved by the publisher before delivery
Correct answer: Ad sub-content loads only after the host page's main content has finished loading
Polite loading delays the heavier sub-load portions of an ad from downloading until the host page has completed its initial content load, preventing ads from degrading page performance.
Question 6: What is the standard pixel dimension of the IAB 'Half Page' display ad unit?
- 300×600 (Correct answer)
- 320×480
- 300×500
- 250×600
Correct answer: 300×600
The IAB Half Page ad unit measures 300×600 pixels, also known as the 'large rectangle,' offering significantly more creative space than the standard 300×250 Medium Rectangle.
Question 7: What is the IAB's recommended maximum initial load file size for standard display ads?
- 50KB
- 100KB
- 150KB
- 200KB (Correct answer)
Correct answer: 200KB
The IAB recommends a maximum initial load file size of 200KB for standard display ads to balance creative richness with acceptable page load performance for users.
IAB Digital Display Advertising 1
What is the pixel dimension of the IAB's standard 'Medium Rectangle' ad unit?