B puts the line in a mark level C. sends a stop bit D places a bit at logical 1 level 43. Then a single parity bit is calculated by the transmitter and A. compared with the received parity bit B. sent with the data bits C. sent after the data bits D. sent before the data bits 44. The falling edge of the start bit triggers the receiver's local clock. which A samples each incoming bit at its nominal center B constructs a new character C. indicates a transmission error D. monitors the line looking for a start bit 45. The most obvious disadvantage of asynchronous data transmission is A. the transmission error B. referred to as the mark level C. the need for a start, parity, and stop bit for each transmitted character D. the receiving timing 46. In fact, the asynchronous serial data link is B era of teleprinter B a very old form of data transmission system C a crt terminal D. a special 47. At the receiving end of an asynchronous serial data link, the receiver continually monitors the .C. A. waiting for the end of the start bit B KIng for a D. constructing a new character 48. For mobile the problem is far more complex with the need to roam complex networks and systems. Thus in mobile the question of standards is far more crucial to success fixed systems. B A. to create. in C. creation that 49. The broadcast mobile networks in densely populated areas, could be by a very small number of simultaneous calls. C B operate, jam C operating, jammed D to operate, to jam 50. The use of digital radio transmission and the advanced handover algorithms between radio cells in GSM networks allows for better frequency usage in analogue cellularB. puts the line in a mark level C. sends a stop bit D. places a bit at logical 1 level 43. Then a single parity bit is calculated by the transmitter and ______________ C. A. compared with the received parity bit B. sent with the data bits C. sent after the data bits D. sent before the data bits 44. The falling edge of the start bit triggers the receiver’s local clock, which ___________ A A. samples each incoming bit at its nominal center B. constructs a new character C. indicates a transmission error D. monitors the line looking for a start bit 45. The most obvious disadvantage of asynchronous data transmission is _____________. C. A. the transmission error B. referred to as the mark level C. the need for a start, parity, and stop bit for each transmitted character D. the receiving timing 46. In fact, the asynchronous serial data link is _____________. B A. the era of teleprinter B. a very old form of data transmission system C. a CRT terminal D. a special means 47.At the receiving end of an asynchronous serial data link, the receiver continually monitors the line _____________ . C. A. waiting for the end of the start bit B. generating a clock C. looking for a start bit D. constructing a new character 48. For mobile the problem is far more complex, with the need to roam ___________ a need for complex networks and systems. Thus in mobile the question of standards is far more crucial to success ___________ fixed systems. B A. to create, in B. creating, than C. creation, that D. created, with 49. The broadcast mobile networks, ___________ in densely populated areas, could be ___________ by a very small number of simultaneous calls. C A. operation, jam B. operate, jam C. operating, jammed D. to operate, to jam 50. The use of digital radio transmission and the advanced handover algorithms between radio cells in GSM networks allows for better frequency usage __________ in analogue cellular