Time left 1:51:54 Question 36 Which multiplexing technique transmits analog signals? Not yet answered Marked out of 1.00 Select one: a. FDM P Flag question O b. DCM O c. CDM O d. TDM Question 37 To avoid collisions on wireless networks, was invented. Not yet answered Marked out of 1.00 P Flag question Select one: O a. CSMA/CD O b. CSMA/CA O c. Pure ALOHA O d. Slotted ALOHA Question 38 Not yet answered Marked out of 1.00 A system can produce frequencies (1000 5000] Hz. Assume we need to convert the signal into digital signal using PCM, what is the min sampling rate? Select one: O a. 15000 P Flag question O b. 3000 O c. 8000 O d. 4000 Question 39 In the _Protocol, if no acknowledgment for a frame has arrived, we resend all outstanding frames. Not yet answered Marked out of 1.00 Select one: O a. Go-Back-N ARQ P Flag question O b. Stop-and-Wait ARQ O c. Simplest ARQ d. Selective-Repeat ARQ Question 40 Not yet answered We measure the performance of a telephone line (4 KHz of bandwidth). When the signal is 10 V, the noise is 5 mV. What is the maximum data rate supported by this telephone line? Marked out of 1.00 Flag question Select one: O a. 4000 bps O b. 8000 bps O c. 40000 bps O d. 43866 bps