流行的认证Web站点，像Certification Magazine和CertCities上的讨论表明大多数it专业人员平均花两到六个星期的学习来准备一门考试。

Discussion on popular certification web sites like certification Magazine and CertCities indicate that most it pros take from two to six weeks studying for each test.

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视线所及之处都是认证——认证书籍充斥书店，现在的课堂培训保证您“通过”认证考试，IT专业人员甚至用“证书”列表为电子邮件签名。

You see it everywhere you look... certification books dominate the bookstores, classroom training now guarantees a "pass," and it professionals even sign their emails with a list of their "certs."

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