In a data communication system, which transport media can be described as following: Has two classes: single mode and multiple m

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问题 In a data communication system, which transport media can be described as following: Has two classes: single mode and multiple mode; with higher transmit rate; with the best reliability

选项 A、radio channel
B、fiber optic cable
C、twisted-pair cable
D、coaxial cable

答案B

解析

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笔试

原NCRE全国计算机四级

NCRE全国计算机四级

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In a data communication system, which transport media can be described as following: Has two classes: single mode and multiple m

笔试

原NCRE全国计算机四级

NCRE全国计算机四级

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A______computerisapersonalcomputerwhosehardwareiscapableofusinganyorallofthefollowingmediainaprogram,text

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The(72)is　a　collection　of　modules　serving　as　interface　between　hardware　and　software　to　provide　a　software　platform．