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    希賽網(wǎng)整理了2017上半年軟件設(shè)計(jì)師考試上午真題，以下是第八部分。

      試題66

      在瀏覽器地址欄輸入一個(gè)正確的網(wǎng)址后，本地主機(jī)將首先在()查詢?cè)摼W(wǎng)址對(duì)應(yīng)的IP地址。

      A.本地DNS緩存

      B.本機(jī)hosts文件

      C.本地DNS服務(wù)器

      D.根域名服務(wù)器

      試題67

      下面關(guān)于Linux目錄的描述中，正確的是()

      A.Linux只有一個(gè)根目錄，用"/root"表示

      B.Linux中有多個(gè)根目錄，用"/"加相應(yīng)目錄名稱表示

      C.Linux中只有一個(gè)根目錄，用"/"表示

      D.Linux中有多個(gè)根目錄，用相應(yīng)目錄名稱表示

      試題68

      以下關(guān)于TCP/IP協(xié)議棧中協(xié)議和層次的對(duì)應(yīng)關(guān)系正確的是（）

      試題69

      在異步通信中，每個(gè)字符包含1位起始位、7位數(shù)據(jù)位和2位終止位，若每秒鐘傳送500個(gè)字符，則有效數(shù)據(jù)速率為()

      A.500b/s

      B.700b/s

      C.3500b/s

      D.5000b/s

      試題70

      以下路由策略中，依據(jù)網(wǎng)絡(luò)信息經(jīng)常更新路由的是()

      A.靜態(tài)路由

      B.洪泛式

      C.隨機(jī)路由

      D.自適應(yīng)路由

      試題71-75

      The beauty of software is in its function，in its internal structure，and in the way in which it is created by a team.To a user，a program with just the right features presented through an intuitive and()interface is beautiful.To a software designer，an internal structure that is partitioned in a simple and intuitive manner，and that minimizes internal coupling is beautiful.To developers and managers，a motivated team of developers making significant progress every week，and producing defect-free code，is beautiful.There is beauty on all these levels.

      our world needs software--lots of software.Fifty years ago software was something that ran in a few big and expensive machines.Thirty years ago it was something that ran in most companies and industrial settings.Now there is software running in our cell phones，watches，appliances，automobiles，toys，and tools.And need for new and better software never().As our civilization grows and expands，as developing nations build their infrastructures，as developed nations strive to achieve ever greater efficiencies，the need for more and more Software()to increase.It would be a great shame if，in all that software，there was no beauty.

      We know that software can be ugly.We know that it can be hard to use，unreliable，and carelessly structured.We know that there are software systems whose tangled and careless internal structures make them expensive and difficult to change.We know that there are software systems that present their features through an awkward and cumbersome interface.We know that there are software systems that crash and misbehave.These are()systems.Unfortunately，as a profession，software developers tend to create more ugly systems than beautiful ones.

      There is a secret that the best software developers know.Beauty is cheaper than ugliness.Beauty is faster than ugliness.A beautiful software system can be built and maintained in less time，and for less money,than an ugly one.Novice software developers don't.understand this.They think that they have to do everything fast and quick.They think that beauty is().No!By doing things fast and quick，they make messes that make the software stiff，and hard to understand，Beautiful systems e flexible and easy to understand.Building them and maintaining them is a joy.It is ugliness that is impractical.Ugliness will slow you down and make your software expensive and brittle.Beautiful systems cost the least build and maintain，and are delivered soonest.

      A.Simple

      B.Hard

      C.Complex

      D.Duplicated

      A.happens

      B.exists

      C.stops

      D.starts

      A.starts

      B.continues

      C.appears

      D.stops

      A.practical

      B.useful

      C.beautiful

      D.ugly

      A.impractical

      B.perfect

      C.time-wasting

      D.practical

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