Slideshow Videos Technology & Digital Applications 4 — Questions and Answers
Question 1: What is the primary advantage of using vector graphics (SVG) over raster images (JPEG/PNG) in digital slideshows?
- Vector graphics scale to any size without losing quality (Correct answer)
- Vector graphics load faster than all raster formats
- Vector graphics support more colors than raster images
- Vector graphics are the only format that supports transparency
Correct answer: Vector graphics scale to any size without losing quality
Vector graphics are defined by mathematical equations rather than pixels, so they can be scaled up to any size without becoming blurry or pixelated.
Question 2: In slideshow video creation, what does 'rendering' refer to?
- The process of computing and generating the final video file from the project's raw elements (Correct answer)
- Adding visual filters to individual slides
- Importing media assets into the editing software
- Uploading the completed video to a hosting platform
Correct answer: The process of computing and generating the final video file from the project's raw elements
Rendering is the computational process where the software combines all layers, effects, transitions, and audio to produce the final playable video file.
Question 3: Which technology allows slideshow videos to stream smoothly over the internet by adjusting quality based on connection speed?
- Adaptive Bitrate Streaming (ABR) (Correct answer)
- Progressive download
- Real-Time Messaging Protocol (RTMP)
- Peer-to-peer delivery
Correct answer: Adaptive Bitrate Streaming (ABR)
Adaptive Bitrate Streaming automatically switches between different quality levels of a video in real time based on the viewer's available bandwidth, reducing buffering.
Question 4: What does 'DPI' stand for and why does it matter when preparing images for slideshow videos?
- Dots Per Inch; it affects print quality but screen output is determined by pixel dimensions (Correct answer)
- Display Pixel Index; it sets the video frame rate
- Digital Processing Index; it determines compression level
- Dots Per Inch; higher DPI always improves video sharpness
Correct answer: Dots Per Inch; it affects print quality but screen output is determined by pixel dimensions
DPI (Dots Per Inch) is a print measurement; for screens and video, only pixel dimensions (e.g., 1920×1080) matter, so DPI settings do not affect how an image looks in a video.
Question 5: Which feature in PowerPoint and Google Slides allows you to record narration audio directly synchronized with slide transitions?
- Record Slideshow / Record Presentation (Correct answer)
- Slide Master
- Presenter View
- Insert > Audio from File
Correct answer: Record Slideshow / Record Presentation
The 'Record Slideshow' feature captures spoken narration and slide timings simultaneously, which can then be exported as a video with the audio already synced.
Question 6: What is a 'green screen' (chroma key) used for in video production, including slideshows?
- Replacing a solid color background with a different image or video (Correct answer)
- Adding a green color grade to footage
- Removing noise from audio recorded outdoors
- Stabilizing shaky handheld video footage
Correct answer: Replacing a solid color background with a different image or video
Chroma keying removes a specific color (typically green or blue) from footage, allowing editors to replace the background with any other image, video, or animation.
Question 7: When sharing a slideshow video via email, what is the most practical approach if the file is too large to attach?
- Upload to cloud storage (Google Drive, Dropbox) and share a link (Correct answer)
- Convert it to a lower-quality GIF
- Split the video into individual image attachments
- Compress it to ZIP format and attach that
Correct answer: Upload to cloud storage (Google Drive, Dropbox) and share a link
Uploading to cloud storage and sharing a download or view link is the standard approach for distributing large video files, as most email providers limit attachments to 25MB.
Slideshow Videos Technology & Digital Applications 4
What is the primary advantage of using vector graphics (SVG) over raster images (JPEG/PNG) in digital slideshows?