CEDIA ESPA EST Practice Test

Answer - B - VGA is not a compression method used for video images.

Key Takeaway: A color VGA video signal is a signaling format composed of 5 different signals, which include two synchronization signals (HSYNC and VSYNC) and three video signals (R, G, and B). HSYNC, or Horizontal sync, makes the electron beam restart at the next screen’s scanline. VSYNC, or Vertical sync, makes the electron beam restart at the first screen’s scanline. R gives Red intensity, G gives Green intensity, and B gives Blue intensity. HSYNC and VSYNC signals determine the screen resolution and R, G, and B signals determine the color of every pixel.