推 pboywc:這都是單選還複選? 05/20 19:55
→ minikitty:喔不好意思 單選^^"! 05/20 23:36
Q1.這句話我看不懂意思?
Information hiding makes the details inaccesible at a lower level
during the design of the higher levels.
Q2.which statement is incorrect?(我只知道a選項不是答案XDrz..)
a.File extension is part of the file name which indicates teh file type.
b.Each open file has a current file or pointer indicating the position
where the next read or write operation should occur.
c.Disk caching improves system speed by taking advantages of the greater
transfer rate of data within RAM.
d.Direct file access reads and writes data from or to a file in a linear order
(這個選項我不懂 什麼是線性順序linear order?查過kimo沒找到^^")
e.Multitasking allows several application programs to be loaded in RAM at one
time.
Q3.which language is popularly supported ny most major datanase system to
query data?(是SQL吧?)
a.SQL
b.html
c.DDL
d.Excel
e.XML
Q4.Which statement is not an advantage of a database?
(我確定非答案的只有e)
a.Provide a database engine efficiently to access and modify the database.
b.Eliminate most redundant data in the database.
c.Include database schema to provide the logical view of the data in the
database.
d.Discover relationships and global patterm that exist among datahases, and
apply these patterns to assist in management decision.
e.Allow more then one user to access the data simultaneously without
accidentally corrupting the data.
Q5.Which statement is incorrect about the object-oriented language?
a.A class describes a group of objects with similar properties and
behavior.
b.Inheritance separates the properties of logical data and actions from
the implementation details.
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不懂的事永遠比懂的多XD
<簽名檔I>
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