This is the Online Practice Quiz in Digital and Data Communication Networks Part 4 as one of the Communications Engineering topic. In Preparation for the ECE Board Exam make sure to expose yourself and familiarize in each and every questions compiled here taken from various sources including but not limited to past Board Examination Questions in Electronic System and Technologies, Communications Books, Journals and other Communications References.
Continue Part IV of the Online Practice Quiz
Quiz in Digital and Data Communication Networks
Question 31. A ______ is a device that is a source of or a destination for binary digital data.
Question 32. A modulator converts a (an) ______ signal to a (an) __________ signal.Question 33. A broadcast TV channel has a bandwidth of 6 MHz. Ignoring noise, calculate the maximum data rate that could be carried in a TV channel using a 16-level code and determine the minimum possible signal-to-noise ratio in dB for the calculated data rate.Question 34. If the bit rate for an ASK signal is 1200 bps, the baud rate isQuestion 35. PCM is an example of __________ encoding.Question 36. If the baud rate is 400 for a 4-PSK, the bit rate is ______ bps.Question 37. The maximum data rate for RS-442 is ________ times that of the maximum RS-423 data rate.Question 38. Determine the bandwidth efficiency for QPSK modulation scheme at a transmission rate of 10 Mbps.Question 39. For a PCM system with a maximum decoded voltage at the receiver of ±2.55 V and minimum dynamic range of 46 dB, determine the maximum quantization error.Question 40. Unipolar, bipolar, and polar encoding are types of ___________ encoding.