OEC Multimedia Integration 2 — Questions and Answers
Question 1: An online educator wants to add captions to a video for students who are deaf or hard of hearing. Which file format is most commonly used for timed text captions?
- MP4
- WebVTT (Correct answer)
- PNG
- SVG
Correct answer: WebVTT
WebVTT (Web Video Text Tracks) is the standard format for timed captions and subtitles used in HTML5 video elements.
Question 2: When embedding a YouTube video into an LMS, which attribute should be added to the iframe to improve accessibility for keyboard-only users?
- autoplay
- loop
- title (Correct answer)
- muted
Correct answer: title
The title attribute on an iframe provides a descriptive label that screen readers announce to users navigating by keyboard.
Question 3: A teacher records a 45-minute lecture. To improve online engagement, what is the generally recommended maximum length per video segment?
- 20–25 minutes
- 6–9 minutes (Correct answer)
- 30–35 minutes
- 15–18 minutes
Correct answer: 6–9 minutes
Research on online learning (including Guo et al., 2014) consistently shows engagement drops sharply after about 6–9 minutes, so shorter segments retain attention better.
Question 4: Which principle of Universal Design for Learning (UDL) is primarily addressed by providing both video lectures and text-based transcripts?
- Multiple means of engagement
- Multiple means of representation (Correct answer)
- Multiple means of action and expression
- Multiple means of assessment
Correct answer: Multiple means of representation
Offering information in more than one format (video + text) fulfills UDL's Multiple Means of Representation guideline.
Question 5: An educator is choosing between raster and vector graphics for an online diagram that students will zoom into on mobile devices. Which type should they choose and why?
- Raster, because it loads faster
- Vector, because it scales without quality loss (Correct answer)
- Raster, because it supports more colors
- Vector, because it supports animation only
Correct answer: Vector, because it scales without quality loss
Vector graphics (e.g., SVG) are mathematically defined and remain crisp at any zoom level, unlike raster images which pixelate when enlarged.
Question 6: What does the acronym SCORM stand for in the context of online education multimedia?
- Structured Content Object Reference Model
- Sharable Content Object Reference Model (Correct answer)
- Standard Curriculum Object Reporting Method
- Synchronized Course Output and Resource Management
Correct answer: Sharable Content Object Reference Model
SCORM (Sharable Content Object Reference Model) is a set of technical standards enabling e-learning content to work across different LMS platforms.
Question 7: A student's screen reader cannot interpret an infographic embedded as a JPEG. What is the best accessibility fix?
- Convert the JPEG to a PNG file
- Add an aria-hidden attribute to the image
- Write a detailed alt text or long description for the image (Correct answer)
- Increase the image resolution to 300 DPI
Correct answer: Write a detailed alt text or long description for the image
Providing descriptive alt text or a linked long description conveys the infographic's informational content to users relying on screen readers.
OEC Multimedia Integration 2
An online educator wants to add captions to a video for students who are deaf or hard of hearing.
Which file format is most commonly used for timed text captions?