Video Processing – MCQs — Multimedia System MCQs

1. Which process is responsible for reducing the number of frames per second in a video stream to save bandwidth?
(A) Frame interpolation
(B) Frame dropping
(C) Frame blending
(D) Frame duplication

2. Which term refers to the technique of predicting video frames based on previously encoded frames?
(A) Intra-frame coding
(B) Inter-frame prediction
(C) Motion masking
(D) Frame buffering

3. Which video compression standard is widely used for Blu-ray discs?
(A) MPEG-1
(B) MPEG-2
(C) H.264/AVC
(D) VP9

4. Which video format is known for supporting alpha channel transparency?
(A) MP4
(B) AVI
(C) MOV
(D) FLV

5. Which filter is commonly applied in video processing to reduce noise?
(A) Median filter
(B) Sobel filter
(C) Laplacian filter
(D) Prewitt filter

6. Which parameter defines the number of pixels in a video frame?
(A) Frame rate
(B) Resolution
(C) Bit rate
(D) Aspect ratio

7. Which aspect ratio is commonly used for widescreen videos?
(A) 4:3
(B) 16:9
(C) 21:9
(D) 3:2

8. Which process converts analog video signals into digital format?
(A) Frame encoding
(B) Quantization
(C) Analog-to-digital conversion
(D) Sampling

9. Which step in video compression reduces redundancy between consecutive frames?
(A) Spatial compression
(B) Temporal compression
(C) Quantization
(D) Entropy coding

10. Which video coding format is specifically optimized for low-latency streaming?
(A) H.265/HEVC
(B) VP9
(C) AV1
(D) WebRTC

11. Which term refers to the process of estimating motion between video frames?
(A) Frame prediction
(B) Motion estimation
(C) Frame buffering
(D) Bit rate control

12. Which container format is most commonly used for online streaming platforms like YouTube?
(A) AVI
(B) MP4
(C) MKV
(D) MOV

13. Which unit measures the number of frames displayed per second in video playback?
(A) FPS
(B) BPS
(C) DPI
(D) Hz

14. Which process ensures that video frames are displayed at a constant speed regardless of device performance?
(A) Buffering
(B) Synchronization
(C) Bit rate adjustment
(D) Encoding

15. Which compression method only uses information within a single frame?
(A) Inter-frame compression
(B) Intra-frame compression
(C) Motion compensation
(D) Frame differencing

16. Which codec is designed as the successor to H.264/AVC, offering better compression efficiency?
(A) H.263
(B) H.265/HEVC
(C) VP8
(D) AV1

17. Which video format is commonly used for lossless archival storage?
(A) MP4
(B) AVI
(C) MKV
(D) FFV1

18. Which type of video frames contain a complete image without relying on other frames?
(A) P-frames
(B) B-frames
(C) I-frames
(D) D-frames

19. Which standard is commonly used for digital television broadcasting?
(A) MPEG-2
(B) MPEG-4
(C) H.264
(D) AV1

20. Which process is used to align audio and video streams during playback?
(A) Time stamping
(B) Bit rate matching
(C) Buffer allocation
(D) Frame interpolation

21. Which term refers to the removal of unnecessary video data to reduce file size without noticeable quality loss?
(A) Upscaling
(B) Downsampling
(C) Compression
(D) Quantization

22. Which streaming method allows playback while data is still being downloaded?
(A) Progressive download
(B) Batch streaming
(C) Offline streaming
(D) Frame caching

23. Which step in video compression involves reducing the precision of pixel values?
(A) Quantization
(B) Motion estimation
(C) Entropy coding
(D) Sampling

24. Which video filter is commonly used for edge detection?
(A) Gaussian blur
(B) Sobel filter
(C) Median filter
(D) Bilateral filter

25. Which video processing technique is used to convert low-resolution content into higher resolution?
(A) Downscaling
(B) Upscaling
(C) Sampling
(D) Frame interpolation

26. Which compression technique reduces color information to save bandwidth?
(A) Color quantization
(B) Chroma subsampling
(C) Hue shifting
(D) Color grading

27. Which video format is designed for web playback with minimal buffering?
(A) WebM
(B) MKV
(C) AVI
(D) FLV

28. Which hardware component is primarily responsible for video rendering?
(A) CPU
(B) GPU
(C) RAM
(D) Motherboard

29. Which encoding method adjusts bit rate according to video complexity?
(A) CBR
(B) VBR
(C) ABR
(D) CFR

30. Which type of compression discards some visual details to achieve smaller file sizes?
(A) Lossless
(B) Lossy
(C) Reversible
(D) Predictive

31. Which process blends intermediate frames to create smoother motion?
(A) Frame interpolation
(B) Frame differencing
(C) Frame skipping
(D) Frame prediction

32. Which streaming protocol is widely used for live video streaming?
(A) FTP
(B) HTTP
(C) RTMP
(D) SMTP

33. Which file extension is associated with Matroska video format?
(A) .mp4
(B) .avi
(C) .mkv
(D) .mov

34. Which parameter affects the smoothness of slow-motion playback?
(A) Frame rate
(B) Bit rate
(C) Resolution
(D) Color depth

35. Which compression standard is designed for ultra-high-definition video?
(A) H.263
(B) H.265/HEVC
(C) MPEG-2
(D) VP6

36. Which step in video processing involves adjusting brightness and contrast levels?
(A) Filtering
(B) Color correction
(C) Sampling
(D) Compression

37. Which color space is commonly used for video compression?
(A) RGB
(B) YUV
(C) CMYK
(D) HSL

38. Which process detects changes in a sequence of video frames?
(A) Motion detection
(B) Frame interpolation
(C) Temporal filtering
(D) Frame compression

39. Which video file format is widely used for compatibility across devices?
(A) MP4
(B) WMV
(C) MKV
(D) FLV

40. Which frame type stores only changes from the previous frame?
(A) I-frame
(B) P-frame
(C) B-frame
(D) D-frame

41. Which technique reduces the effect of camera shake in videos?
(A) Motion compensation
(B) Video stabilization
(C) Frame blending
(D) Temporal filtering

42. Which feature of HDR videos improves the range between the darkest and brightest areas?
(A) Frame rate
(B) Bit depth
(C) Color grading
(D) Contrast stretching

43. Which process increases the perceived sharpness of video frames?
(A) Noise reduction
(B) Sharpening filter
(C) Edge blurring
(D) Temporal smoothing

44. Which type of sampling is used in chroma subsampling 4:2:0?
(A) Equal sampling for all channels
(B) Reduced chroma resolution horizontally and vertically
(C) Reduced chroma resolution horizontally only
(D) Reduced chroma resolution vertically only

45. Which term refers to adjusting the speed of a video without altering pitch in audio?
(A) Time stretching
(B) Frame skipping
(C) Bit rate scaling
(D) Audio mixing

46. Which technique blends multiple frames to reduce flicker in low-light videos?
(A) Frame stacking
(B) Frame skipping
(C) Motion masking
(D) Temporal smoothing

47. Which video compression format was developed by Google for web use?
(A) VP9
(B) H.264
(C) MPEG-2
(D) H.263

48. Which video editing technique involves removing specific sections of a video timeline?
(A) Cropping
(B) Trimming
(C) Masking
(D) Compositing

49. Which process converts a high frame rate video into a lower frame rate video for compatibility?
(A) Downscaling
(B) Frame rate conversion
(C) Frame blending
(D) Frame skipping

50. Which term refers to combining multiple video sources into one output stream?
(A) Keying
(B) Compositing
(C) Masking
(D) Filtering