📄 模拟考试29.htm
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<H3 align=center><FONT color=#0000ff>您现在正在参加网络工程师考试</FONT></H3>
<CENTER>考试时间150分钟 0:21:31 到 2:51:31 出卷人：最高管理员</CENTER>
<TABLE border=1 borderColor=#799ae1 cellSpacing=1 height=138
style="BORDER-COLLAPSE: collapse" width="100%">
<TBODY>
<TR class=trh>
<TD align=middle bgColor=#799ae1 height=19 width=30><FONT
color=#ffffff><B>序号</B></FONT></TD>
<TD align=middle bgColor=#799ae1 height=19 width=606>
<P align=center><FONT color=#ffffff><B>填空题<SPAN
lang=en-us>(</SPAN>共1题<SPAN lang=en-us>,5</SPAN>分<SPAN
lang=en-us>)</SPAN></B></FONT></P></TD></TR>
<TR class=trh1>
<TD align=middle height=96 width=30>1 </TD>
<TD align=left height=96 width=606>
计算机之所以可以通过INTERNET互相通信，是因为它们遵循了一套共同的INTERNET协议。这套协议的核心是
，在其上建立的无连接的运输层协议是 ，万维网WWW超文本传输遵循 电子邮件传输遵循_______。©) <BR>答： <INPUT
class=inputnormalleft name=text2945
onblur="this.className='inputnormalleft'"
onfocus="this.className='inputedit';this.select()" size=80> <BR></TD></TR>
<TR>
<TD align=middle bgColor=#ffffff borderColor=#ffffff colSpan=2 height=21
width=640><SPAN
lang=en-us>
</SPAN><INPUT class=s02 name=B1 type=submit value=保存填空题>
</TD></TR></TBODY></TABLE>
<TABLE border=1 borderColor=#799ae1 cellSpacing=1 height=265
style="BORDER-COLLAPSE: collapse" width="100%">
<TBODY>
<TR class=trh>
<TD align=middle bgColor=#799ae1 height=21 width=29><FONT
color=#ffffff><B>序号</B></FONT></TD>
<TD align=middle bgColor=#799ae1 height=21 width=607>
<P align=center><FONT color=#ffffff><B>单项选择题<SPAN
lang=en-us>(</SPAN>共75题,75分<SPAN lang=en-us>)</SPAN></B></FONT></P></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>1 </TD>
<TD align=left height=212 width=607>
为了进行差错控制，必须对传送的数据帧进行校验。在局域网中广泛使用的校验方法是 (1) 校验。©) <BR>答： <INPUT
class=radio name=text1504 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.奇偶(Parity)<BR> <INPUT class=radio
name=text1504 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.B．海明(Hamming)<BR> <INPUT class=radio
name=text1504 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.C．格雷(Gray)<BR> <INPUT class=radio
name=text1504 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.D．循环冗余(CyclicRedundancy)<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>2 </TD>
<TD align=left height=212 width=607>
为了进行差错控制，必须对传送的数据帧进行校验。CRC—16标准规定的生成多项式为G(x)=X16+X15+X2+l，它产生的校验码是 __(2)
位©) <BR>答： <INPUT class=radio name=text1506
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.2<BR> <INPUT class=radio name=text1506
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.4<BR> <INPUT class=radio name=text1506
onblur="this.className='radio'"
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