This is the Online Practice Quiz in Digital and Data Communication Networks Part 5 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 V of the Online Practice Quiz
Quiz in Digital and Data Communication Networks
Question 41. What is the object of trellis coding?
Question 42. RZ encoding involves _______ levels of signal amplitude.Question 43. The EIA-RS-232 standard defines _________ characteristics of the DTE-DCE interface.Question 44. If the frequency spectrum of a signal has a bandwidth of 500 Hz with the highest frequency at 600 Hz, what should be the sampling rate according to the Nyquist theorem?Question 45. If you have two close, compatible DTEs that can communicate data that do not need to be modulated. A good interface would be ________.Question 46. The encoding method specified in the EIA-232 standard is _________.Question 47. In _________ transmission, bits are transmitted simultaneously, each across its own channel.Question 48. A cable range of 40 to _____ feet is possible according to the EIA-RS-449 standard.Question 49. Which of the following is most affected by noise?Question 50. For a binary phase shift keying (BPSK) modulation with a carrier frequency of 80 MHz and an input bit rate of 10 Mbps. Determine the minimum Nyquist bandwidth.