[it認(rèn)證]全國計(jì)算機(jī)等級(jí)考試四級(jí)筆試試題二下(編輯修改稿)
2025-02-14 04:31 本頁面
【文章內(nèi)容簡(jiǎn)介】 engineering process is the Software Requirements Specification developed?____． A) definition phase B) engineering C) maintenance D) development phase (63) The prototyping method is a dynamic design process,which requires people who use prototyping method to have the following capability of____． A) proficient program expertise B) immediately acquire requirement C) coordinate amp。 organize eloquently D) handle tools smartly (64) For relation R where primary key contains multiple attributes,no nonkey attribute should be functionally dependent on a part of the primary key. This relation R is at least in____． A) 1NF B) 2NF C) 3NF D) BCNF (65) Which of the following statements about object oriented databse is not correct?____． A) Each object has a unique object identity in the system. B) Encapsulation and inheritance are two important features of object oriented database. C) A subclass can inherit the attributes and methods of all its superclasses. D) A subclass includes the attributes and methods of all its subclasses. (66) Local bus can increase the data throughput. The bus that is most frequent
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