Computer Networking ASK, PSK, FSK, and QAM are examples of _____ encoding. analog-to-digital digital-to-digital digital-to-analog analog-to-analog None of these analog-to-digital digital-to-digital digital-to-analog analog-to-analog None of these ANSWER DOWNLOAD EXAMIANS APP
Computer Networking A 2000-character text file has to be transmitted by using a 1,200 baud modem. Can you tell how long will it take? 12 seconds 2 seconds 20 seconds 120 seconds None of these 12 seconds 2 seconds 20 seconds 120 seconds None of these ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Two computers that communicate with each other use a simple parity check to detect errors for ASCII transmissions. Which of the following events will always lead to an undeleted error? two bits or any even number of bits inverted in a byte during transmission None of these two bits or any even number of bits inverted in a block during transmission one bit or any odd number of bits inverted in a byte during transmission one bit or any odd number of bits inverted in a block of data during transmission two bits or any even number of bits inverted in a byte during transmission None of these two bits or any even number of bits inverted in a block during transmission one bit or any odd number of bits inverted in a byte during transmission one bit or any odd number of bits inverted in a block of data during transmission ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Which of the following communications service provides message preparation and transmission facilities? x400 Teletex Teletext Fax None of these x400 Teletex Teletext Fax None of these ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Which of the following does not allow multiple users or devices to share one communications line? None of these controller doubleplexer concentrator multipplexer None of these controller doubleplexer concentrator multipplexer ANSWER DOWNLOAD EXAMIANS APP
Computer Networking What is the problem with an interface if you type show interface serial 0 and receive the following message? "Serial0 is administratively down, line protocol is down." No cable is attached. The administrator has the interface shut down. The keepalives are different times. The administrator is pinging from the interface. No cable is attached. The administrator has the interface shut down. The keepalives are different times. The administrator is pinging from the interface. ANSWER DOWNLOAD EXAMIANS APP
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