ETSI 749 and DVBMS Standards for Digital Video Features
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Questions and Answers

What is the main reason behind the name 'Phase Alternating Line' for chroma signals?

  • To simplify receiver technology
  • To improve picture quality (correct)
  • To reduce signal bandwidth
  • To confuse the viewers

Why is SECAM known as 'Sequential Color with Memory'?

  • Due to its high data storage capacity
  • Due to its sequential frame rendering
  • Due to its sequential sound transmission
  • Due to its sequential color transmission (correct)

What is the aspect ratio of the SECAM analog video broadcast standard?

  • 3:2
  • 1:1
  • 4:3 (correct)
  • 16:9

What is the resolution of SECAM in terms of lines per frame?

<p>625 (A)</p> Signup and view all the answers

What is the function of the chrominance signal in color television?

<p>Carries the color information (C)</p> Signup and view all the answers

Why are color standards like SECAM designed to be compatible with monochrome television receivers?

<p>To ensure seamless transition for viewers (C)</p> Signup and view all the answers

What is the function of codecs in multimedia applications?

<p>Convert audio and video data into smaller packages (A)</p> Signup and view all the answers

What is the purpose of key frames in video compression?

<p>Serve as baseline frames for quality comparison (A)</p> Signup and view all the answers

Which component affects the playback system's maximum rate?

<p>CPU, hard drive, and display card speed (D)</p> Signup and view all the answers

What does higher fps rate than the maximum system rate result in?

<p>Jerky motion due to frame dropping (C)</p> Signup and view all the answers

Which video compressor is best for converting analog video into digital format?

<p>Microsoft Video 1 codec (C)</p> Signup and view all the answers

What type of images is Microsoft RLE codec commonly used for compressing?

<p>Animation and computer generated images (A)</p> Signup and view all the answers

What is the main difference between old TV receivers and color receivers?

<p>Old TV receivers only display the luminance, while color receivers process both luminance and color signals. (A)</p> Signup and view all the answers

Which organization is responsible for maintaining the DVB standards for digital television?

<p>Digital Video Broadcasting Project (DVB) (D)</p> Signup and view all the answers

What is a key advantage of Digital Video Broadcasting (DVB) in terms of copying?

<p>Every copy made with DVB is identical to the original. (C)</p> Signup and view all the answers

What resolution is classified as 'High definition' in Digital Television (DTV)?

<p>1920 × 1080, 16:9, progressive and interlaced (C)</p> Signup and view all the answers

Which coding standard was selected for audio and video data in Digital Video Broadcast?

<p>MPEG-2 (D)</p> Signup and view all the answers

What is the main feature of Multichannel Microwave Distribution Systems (MMDS) in data distribution?

<p>Suitability for distributing data to households (D)</p> Signup and view all the answers

What is the frame aspect ratio for high definition specifications?

<p>16:9 (D)</p> Signup and view all the answers

Which pixel dimension is associated with the HDV format?

<p>1280 x 720 (C)</p> Signup and view all the answers

What is the color sampling method used in high definition HDV format?

<p>4:2:0 (B)</p> Signup and view all the answers

What does 'i' stand for in 1080 / 60 i?

<p>Interlaced (B)</p> Signup and view all the answers

What is the frame height of a standard definition DV wide-screen (16:9) frame?

<p>720 pixels (D)</p> Signup and view all the answers

Which factor determines the data rate for video data only in high definition?

<p>Resolution (B)</p> Signup and view all the answers

What is the minimum frame rate needed to achieve the illusion of a moving image?

<p>15 frames per second (B)</p> Signup and view all the answers

Which standard is applicable to frequencies below 10 GHz?

<p>ETSI 749 (C)</p> Signup and view all the answers

What is the measure of the rate of information content in a video stream?

<p>Bit rate (D)</p> Signup and view all the answers

Which type of compression has quality issues associated with it?

<p>Lossy compression (D)</p> Signup and view all the answers

Which type of video has a higher quality bit rate compared to VideoCD?

<p>HDV (B)</p> Signup and view all the answers

Which technology is the specification based on for frequencies below 10 GHz?

<p>DVB-C technology (D)</p> Signup and view all the answers
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