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全部科目 > 软件认证工程师考试 > 思科认证考试 > CCNP系列认证 > CCNP(642-845)

单项选择题

Which statement is true about the digital to analog conversion process?()

    A.the two steps of digital to analog conversion are decompression and reconstruction of the analog signal
    B.the two steps of digital to analog conversion are decoding and filtering
    C.the two steps of digital to analog conversion are decompression and filtering of the analog signal
    D.the two steps of digital to analog conversion are quantization and decoding

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