3-68.    With a single address control indicator, an NCS platform can control what maximum number of participating units? 1. 5 2. 10 3. 15 4. 20 3-69. Data exchange between the Link-11 DTS and the CDS computer is controlled by the DTS using which of the following control signal protocols? 1.    External interrupts 2.    External functions 3. Input  data  requests 4.    Output data requests 3-70. During a receive data cycle, the DTS performs which of the following actions when frame two of the stop code is detected? 1.    The frame is processed as a data frame and sent to the computer 2.    The DTS processes the stop code and resets itself only 3.    The DTS sends the end of receive external interrupt to the computer 4.    The computer processes the stop code and closes the input data buffer 3-71. Which of the following actions is performed by the DTS when a control station stop code is received? 1.    The DTS compares the next two frames received with the own station address 2.    The DTS resets all I/O timing  circuits 3.    The DTS sends the next two frames received to the CDS computer 4.    The DTS sends the prepare to transmit data interrupt to the  computer 3-72. When the DTS recognizes own station address, it transmits which of the following signals first? 1.    Prepare to transmit interrupt 2.    The first frame of the preamble 3.    The phase reference frame 4.    Input data request 3-73. At the start of a transmit cycle, the output data request is first set active during which of the following frames? 1.    The first frame of the preamble 2.    The first frame of the start code 3.    The phase-reference frame 4.    The second frame of the start code 3-74. Which of the following events takes place when the CDS computer does not answer an ODR from the DTS within the specified  time  limit? 1.    The DTS generates the stop code 2. The DTS hangs-up 3.    The computer generates an external function to clear the DTS 4.    The computer sends a stop code to the DTS 3-75. Which of the following events occur if an interrogated picket station does not answer an initial interrogations from the NCS within 15 frame intervals? 1.    NCS interrogates the next station 2.    NCS waits another 15 frame intervals 3.    Link-11 network hangs up 4.    NCS retransmits the interrogation to the unit that did not reply 18