200204.htm

等级考试三级试题全集

<p class=a2><span lang=EN-US>A）Ⅰ、Ⅱ和Ⅳ<span style='mso-tab-count:1'>&nbsp;&nbsp; </span>B）Ⅱ、Ⅲ和Ⅳ<span
style='mso-tab-count:1'>&nbsp;&nbsp; </span>C）Ⅰ、Ⅲ和Ⅳ<span style='mso-tab-count:
2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>D）Ⅰ、Ⅱ和Ⅲ</span></p>

<p class=a1 style='margin-left:23.8pt;text-indent:-23.8pt;mso-list:l7 level1 lfo90'><![if !supportLists]><span
lang=EN-US style='font-family:宋体;mso-bidi-font-family:宋体'><span
style='mso-list:Ignore'>(20)<span style='font:7.0pt "Times New Roman"'>&nbsp; </span></span></span><![endif]><span
style='font-family:宋体'>在虚拟页式存储管理系统中，地址越界中断属于<span lang=EN-US><o:p></o:p></span></span></p>

<p class=a2><span lang=EN-US>A）输入输出中断定<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span style='mso-tab-count:2'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>B）程序性中断</span></p>

<p class=a2><span lang=EN-US>C）时钟中断<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:4'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>D）自愿性中断</span></p>

<p class=a1 style='margin-left:23.8pt;text-indent:-23.8pt;mso-list:l7 level1 lfo90'><![if !supportLists]><span
lang=EN-US style='font-family:宋体;mso-bidi-font-family:宋体'><span
style='mso-list:Ignore'>(21)<span style='font:7.0pt "Times New Roman"'>&nbsp; </span></span></span><![endif]><span
style='font-family:宋体'>下列关于时钟的叙述中，<u>不</u>正确的是<span lang=EN-US><o:p></o:p></span></span></p>

<p class=a2><span lang=EN-US>A）硬件必须提供定时装置</span></p>

<p class=a2><span lang=EN-US>B）时钟中断属于强迫性中断</span></p>

<p class=a2><span lang=EN-US>C）通过时钟机制可以运行系统管理和维护程序</span></p>

<p class=a2><span lang=EN-US>D）用户一般通过相对时钟确定当前时刻</span></p>

<p class=MsoNormal style='margin-top:6.0pt;margin-right:0cm;margin-bottom:0cm;
margin-left:17.85pt;margin-bottom:.0001pt'><b><span style='font-family:宋体'>第<span
lang=EN-US>22-23题基于如下描述： <o:p></o:p></span></span></b></p>

<p class=MsoNormal style='margin-top:0cm;margin-right:0cm;margin-bottom:6.0pt;
margin-left:17.85pt;text-indent:21.0pt'><span style='font-family:宋体'>单道环境下四个作业，它们进入系统的时间如图所示：<span
lang=EN-US><o:p></o:p></span></span></p>

<table class=MsoNormalTable border=1 cellspacing=0 cellpadding=0
 style='margin-left:43.7pt;border-collapse:collapse;border:none;mso-border-alt:
 solid windowtext .5pt;mso-padding-alt:0cm 5.4pt 0cm 5.4pt;mso-border-insideh:
 .5pt solid windowtext;mso-border-insidev:.5pt solid windowtext'>
 <tr style='height:17.25pt'>
  <td valign=top style='border:solid windowtext 1.0pt;mso-border-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt;height:17.25pt'>
  <p class=MsoNormal align=center style='text-align:center'><span
  style='font-family:宋体'>作业<span lang=EN-US><o:p></o:p></span></span></p>
  </td>
  <td valign=top style='border:solid windowtext 1.0pt;border-left:none;
  mso-border-left-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt;height:17.25pt'>
  <p class=MsoNormal align=center style='text-align:center'><span
  style='font-family:宋体'>进入系统时间<span lang=EN-US><o:p></o:p></span></span></p>
  </td>
  <td valign=top style='border:solid windowtext 1.0pt;border-left:none;
  mso-border-left-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt;height:17.25pt'>
  <p class=MsoNormal align=center style='text-align:center'><span
  style='font-family:宋体'>估计运行时间<span lang=EN-US>(分钟)<o:p></o:p></span></span></p>
  </td>
 </tr>
 <tr style='height:17.25pt'>
  <td valign=top style='border:solid windowtext 1.0pt;border-top:none;
  mso-border-top-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt;height:17.25pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  style='font-family:宋体'>JOB1<o:p></o:p></span></p>
  </td>
  <td valign=top style='border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;
  border-right:solid windowtext 1.0pt;mso-border-top-alt:solid windowtext .5pt;
  mso-border-left-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt;height:17.25pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  style='font-family:宋体'>8：00<o:p></o:p></span></p>
  </td>
  <td valign=top style='border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;
  border-right:solid windowtext 1.0pt;mso-border-top-alt:solid windowtext .5pt;
  mso-border-left-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt;height:17.25pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  style='font-family:宋体'>120<o:p></o:p></span></p>
  </td>
 </tr>
 <tr style='height:17.25pt'>
  <td valign=top style='border:solid windowtext 1.0pt;border-top:none;
  mso-border-top-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt;height:17.25pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  style='font-family:宋体'>JOB2<o:p></o:p></span></p>
  </td>
  <td valign=top style='border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;
  border-right:solid windowtext 1.0pt;mso-border-top-alt:solid windowtext .5pt;
  mso-border-left-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt;height:17.25pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  style='font-family:宋体'>8：50<o:p></o:p></span></p>
  </td>
  <td valign=top style='border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;
  border-right:solid windowtext 1.0pt;mso-border-top-alt:solid windowtext .5pt;
  mso-border-left-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt;height:17.25pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  style='font-family:宋体'>50<o:p></o:p></span></p>
  </td>
 </tr>
 <tr style='height:17.25pt'>
  <td valign=top style='border:solid windowtext 1.0pt;border-top:none;
  mso-border-top-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt;height:17.25pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  style='font-family:宋体'>JOB3<o:p></o:p></span></p>
  </td>
  <td valign=top style='border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;
  border-right:solid windowtext 1.0pt;mso-border-top-alt:solid windowtext .5pt;
  mso-border-left-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt;height:17.25pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  style='font-family:宋体'>9：00<o:p></o:p></span></p>
  </td>
  <td valign=top style='border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;
  border-right:solid windowtext 1.0pt;mso-border-top-alt:solid windowtext .5pt;
  mso-border-left-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt;height:17.25pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  style='font-family:宋体'>10<o:p></o:p></span></p>
  </td>
 </tr>
 <tr style='mso-yfti-lastrow:yes;height:17.25pt'>
  <td valign=top style='border:solid windowtext 1.0pt;border-top:none;
  mso-border-top-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt;height:17.25pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  style='font-family:宋体'>JOB4<o:p></o:p></span></p>
  </td>
  <td valign=top style='border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;
  border-right:solid windowtext 1.0pt;mso-border-top-alt:solid windowtext .5pt;
  mso-border-left-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt;height:17.25pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  style='font-family:宋体'>9：50<o:p></o:p></span></p>
  </td>
  <td valign=top style='border-top:none;border-left:none;border-bottom:solid windowtext 1.0pt;
  border-right:solid windowtext 1.0pt;mso-border-top-alt:solid windowtext .5pt;
  mso-border-left-alt:solid windowtext .5pt;mso-border-alt:solid windowtext .5pt;
  padding:0cm 5.4pt 0cm 5.4pt;height:17.25pt'>
  <p class=MsoNormal align=center style='text-align:center'><span lang=EN-US
  style='font-family:宋体'>20<o:p></o:p></span></p>
  </td>
 </tr>
</table>

<p class=a1 style='margin-left:23.8pt;text-indent:-23.8pt;mso-list:l7 level1 lfo90'><![if !supportLists]><span
lang=EN-US style='font-family:宋体;mso-bidi-font-family:宋体'><span
style='mso-list:Ignore'>(22)<span style='font:7.0pt "Times New Roman"'>&nbsp; </span></span></span><![endif]><span
style='font-family:宋体'>若采用先来先服务<span lang=EN-US>(FCFS)作业调度算法，JOB3的完成时间是<o:p></o:p></span></span></p>

<p class=a2><span lang=EN-US>A）10：10<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:1'>&nbsp; </span>B）10：40<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>C）11：00<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>D）11：10</span></p>

<p class=a1 style='margin-left:23.8pt;text-indent:-23.8pt;mso-list:l7 level1 lfo90'><![if !supportLists]><span
lang=EN-US style='font-family:宋体;mso-bidi-font-family:宋体'><span
style='mso-list:Ignore'>(23)<span style='font:7.0pt "Times New Roman"'>&nbsp; </span></span></span><![endif]><span
style='font-family:宋体'>若采用最短作业优先<span lang=EN-US>(SJF)作业调度算法，JOB3的完成时间是<o:p></o:p></span></span></p>

<p class=a2><span lang=EN-US>A）8：10<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span><span style='mso-tab-count:
1'>&nbsp;&nbsp;&nbsp; </span>B）9：10<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:1'> </span>C）10：10<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:1'>&nbsp; </span>D）11：10</span></p>

<p class=a1 style='margin-left:23.8pt;text-indent:-23.8pt;mso-list:l7 level1 lfo90'><![if !supportLists]><span
lang=EN-US style='font-family:宋体;mso-bidi-font-family:宋体'><span
style='mso-list:Ignore'>(24)<span style='font:7.0pt "Times New Roman"'>&nbsp; </span></span></span><![endif]><span
style='font-family:宋体'>在页式存储管理中，为加快地址映射速度，一般需要硬件提供支持。以下哪些硬件是用于地址映射的？<span
lang=EN-US><o:p></o:p></span></span></p>

<p class=a2>Ⅰ<span lang=EN-US>. 页表始址寄存器</span></p>

<p class=a2>Ⅱ<span lang=EN-US>. 页表长度寄存器</span></p>

<p class=a2>Ⅲ<span lang=EN-US>. 变址寄存器</span></p>

<p class=a2>Ⅳ<span lang=EN-US>. 相联存储器</span></p>

<p class=a2><span lang=EN-US>A）Ⅱ、Ⅲ和Ⅳ<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:3'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>B）Ⅰ、Ⅱ和Ⅳ</span></p>

<p class=a2><span lang=EN-US>C）Ⅰ、Ⅱ和Ⅲ<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:4'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>D）全部</span></p>

<p class=a1 style='margin-left:23.8pt;text-indent:-23.8pt;mso-list:l7 level1 lfo90'><![if !supportLists]><span
lang=EN-US style='font-family:宋体;mso-bidi-font-family:宋体'><span
style='mso-list:Ignore'>(25)<span style='font:7.0pt "Times New Roman"'>&nbsp; </span></span></span><![endif]><span
style='font-family:宋体'>在一个文件系统中，文件的物理结构采用顺序结构。如果有一个文件大小为<span lang=EN-US>2550块，则读取该文件的第1937块将会启动硬盘多少次？<o:p></o:p></span></span></p>

<p class=a2><span lang=EN-US>A）1次<span
style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span><span
style='mso-tab-count:1'> </span>B）LOG<sub>2</sub>1937次<span style='mso-tab-count:
1'>&nbsp;&nbsp; </span><span style='mso-tab-count:1'>&nbsp;&nbsp;&nbsp; </span>C）
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