5-41. The data terminal can be controlled from a remote location by use of which of the following pieces of equipment? 1. A 286 personal computer only 2. A 386 or better personal computer only 3. The C-12428/USQ-125 Control Unit only 4. Either a 386 or better personal computer, or the C-12428/USQ-125 Control Unit 5-42. Link-16 uses which of the following communications protocols? 1. Netted or roll call 2. Time division, command and response 3. Time division multiple access 4. Frequency-division multiplexing 5-43.     Each  unit  participating  in  a Link-16 net is identified by assigning each unit what type of designator? 1. A PU number 2. A JU number 3. A link identifier 4. A hull number 5-44. What is the duration of each time slot in a Link-16 message? 1. 7.8125  msec 2. 7.8125 µsec 3. 7.8125  seconds 4. It varies, according to the amount of data transmitted 5-45. During the transmission of data, exactly how often does Link-16 change frequency? 1. Every 13 µsec 2. Every 13 msec 3. Daily 4. When the frequency is excessively noisy 5-46. Link-16 is configured for a stacked  net.  At-any  one  time, what number of nets can a 5-47. 5-48. 5-49. 5-50. single terminal transmit and receive  data? 1. One 2. Two 3. Three 4. Four A Link-16 data word is comprised of what number of data  bits? 1. 50 2. 60 3. 70 4. 80 A Link-16 fixed format message is which of the following message  types? 1. V-series 2. R-series 3. M-series 4. J-series Which of the following message types are used for Link-16 voice communications? 1. Fixed  format 2. Free text 3. Variable format 4. Unformatted Which of the following message types are used to exchange tactical  data? 1. Fixed  format 2. Free text 3. Variable format 4. Unformatted 31