A(n) ________ is particularly appropriate for providing services that disparate objects have in common.
a) abstract class
b) concrete class
c) interface
d) None of the above.
c) interface
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Because a channel and the computer are independent, the main processor has no way of knowing when an I/O operation is completed unless the channel tells it. Thus as the last character of data flows across the channel, the channel processor sends the main processor an electronic signal called a(n) __________.
a. interrupt b. The premise of this question is false. c. I/O signal d. control signal
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Which of the following would a technician use a punch down tool on?
A. RJ45 connector B. ST connector C. 110 block D. Smart jack
A technician is troubleshooting an expansion card in a computer that allows the computer to receive faxes over a VoIP line. The line connected to the expansion card is MOST likely which of the following cable types
A. Coaxial B. CAT3 C. CAT6 D. Multi-mode fiber E. Single-mode fiber