Ncti 2020 Digital Technician Conventional Questions And Answers

What type of Moving Picture Experts Group (MPEG)-2 data contains all the information necessary to reconstruct a single image? {Ans: Intra-coded frame (I-frame) data.}How many base-10 numbers can be expressed with two digits? {Ans: 99.}What happens when two channels of equal power, but different frequencies, are combined for transport over a network? {Ans: The total power of the combined channels is 3 dB over that of either channel.}After stereo audio, what was the major disruption to TV technology that followed decades of few notable disruptions.? {Ans: Digital TV (DTV).}In a NAND gate, what reverses the voltage state from that of an AND gate? {Ans: The NOT gate that follows the AND gate.}Why is randomizing included in the forward error correction (FEC) process? {Ans: To help the receiver maintain synchronization with the modulator.}In a Moving Pictures Expert Group Transport Stream (MPEG-TS), what is used to synchronize the decoder video and audio to real-time? {Ans: A 27 MHz master clock, the program clock reference (PCR).}How is the perception of three-dimensional high definition TV (3D HDTV) created? {Ans: By displaying an image from two slightly different angles, like a pair of human eyes.}What typically defines