11Hamming code can correct:ASingle-bit errorsBAll burst errorsCNo errorsDAny number of errorsView AnswerDiscussWorkspaceReportSaveEasy
12OFDM is used in:AAnalog TVBTelegraphCAM radioDWi-Fi and 4G/5G systemsView AnswerDiscussWorkspaceReportSaveEasy
13Bit error rate (BER) is:AThe ratio of bits received in error to total bits sentBThe signal powerCThe bandwidthDThe bit rateView AnswerDiscussWorkspaceReportSaveEasy
14A matched filter maximises:AThe signal-to-noise ratio at the sampling instantBBandwidthCDistortionDBit rateView AnswerDiscussWorkspaceReportSaveEasy
15A PCM system samples a 4 kHz signal at the Nyquist rate with 8 bits per sample. The bit rate is:A8 kbpsB64 kbpsC128 kbpsD32 kbpsView AnswerDiscussWorkspaceReportSaveMedium