(66)is a one-way function that takes an arbitrarily long piece of plaintext and from it computes a fixed-length bit string.(67)i

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问题 (66)is a one-way function that takes an arbitrarily long piece of plaintext and from it computes a fixed-length bit string.(67)is a protocol that most USENET machines how use it to allow news articles to propagate from one machine to another over a reliable connection.(68)is an approach preferred by cable TV providers. In this solution the fiber terminates at an optoelectrical converter and the final segment is a shared coaxial cable.(69)is a device used to connect two separate network that use different communication protocol.(70)js a digital

选项 A、ADSL
B、FTTC
C、HFC
D、FTTH

答案C

解析 本题主要考查混合光纤同轴电缆网HFC。答案为C。
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