📄 模拟考试15.htm
字号:
name=text1715 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.get-response<BR> <INPUT class=radio
name=text1715 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.trap<BR> <INPUT class=radio name=text1715
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.set-request<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>42 </TD>
<TD align=left height=212 width=607> CMOT
是要在__(40)__上实现公共管理信息服务协议（CMIS）的服务，它是一个过渡性的解决方案，希望过渡到 OSI 网络管理协议被广泛采用。 ©)
<BR>答： <INPUT class=radio name=text1719
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.TCP/IP 协议族<BR> <INPUT class=radio
name=text1719 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.X.25 协议族<BR> <INPUT class=radio
name=text1719 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.帧中继协议族<BR> <INPUT class=radio name=text1719
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.ATM 协议族<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>43 </TD>
<TD align=left height=212 width=607> N-ISDN
是在__(41)__基础上建立起来的网络©) <BR>答： <INPUT class=radio name=text1721
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.电话网<BR> <INPUT class=radio name=text1721
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.有线电视网<BR> <INPUT class=radio name=text1721
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.公用数据网<BR> <INPUT class=radio name=text1721
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.接入网<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>44 </TD>
<TD align=left height=212 width=607>
N-ISDN一路话音占用的数据传输率是__(44)__©) <BR>答： <INPUT class=radio
name=text1726 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.3KHz<BR> <INPUT class=radio name=text1726
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.3.4KHz<BR> <INPUT class=radio name=text1726
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.64Kbps<BR> <INPUT class=radio name=text1726
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.128Kbps <BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>45 </TD>
<TD align=left height=212 width=607> 当计算机需要通过相连的 MORDEM
发送数据时，依次设置的信号是__(50)__。©) <BR>答： <INPUT class=radio name=text1957
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.MODEM就绪→
DTE就绪→请求发送→允许发送→发数据→清请求发送→清允许发送→清MODEM就绪→清DTE就绪<BR>
<INPUT class=radio name=text1957 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.MODEM就绪→DTE就绪→请求发送→允许发送→发数据→清请求发送→清允许发送→清DTE就绪→清MODEM就绪<BR>
<INPUT class=radio name=text1957
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.DTE就绪→MODEM就绪→请求发送→允许发送→发数据→清请求发送→清允许发送→清MODEM就绪→清DTE就绪<BR>
<INPUT class=radio name=text1957
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.DTE就绪→MODEM就绪→请求发送→允许发送→发数据→清请求发送→清允许发送→清DTE就绪→清MODEM就绪<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>46 </TD>
<TD align=left height=212 width=607> ATM
网络中使用信元作为传输数据的单位，当信元从用户端进入网络中第一个交换机后，信元头中修改的部分是__(51)__。©) <BR>答：
<INPUT class=radio name=text1958 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.VCI<BR> <INPUT class=radio name=text1958
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.GFC<BR> <INPUT class=radio name=text1958
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.CLP<BR> <INPUT class=radio name=text1958
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.PT<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>47 </TD>
<TD align=left height=212 width=607> 当 AAL 层采用 AAL5
协议传输数据时，可以达到的有效数据传输率（除去开销）为__(55)__。 ATM 网络中使用信元作为传输数据的单位， ©) <BR>答：
<INPUT class=radio name=text1962 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.85% <BR> <INPUT class=radio name=text1962
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.87%<BR> <INPUT class=radio name=text1962
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.89%<BR> <INPUT class=radio name=text1962
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.90% <BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>48 </TD>
<TD align=left height=212 width=607> URL
根目录与服务器本地目录之间的映射关系是通过指令__(57)__设定©) <BR>答： <INPUT class=radio
name=text1964 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.WWWroot<BR> <INPUT class=radio name=text1964
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.ServerRoot<BR> <INPUT class=radio
name=text1964 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.ApacheRot<BR> <INPUT class=radio
name=text1964 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.DocumentRoot<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>49 </TD>
<TD align=left height=212 width=607> 指令 ServerAdmin
的作用是__(58)__©) <BR>答： <INPUT class=radio name=text1965
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.设定该WWW服务器的系统管理员账号<BR> <INPUT class=radio
name=text1965 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.设定系统管理员的电子邮件地址<BR> <INPUT class=radio
name=text1965 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.指明服务器运行时的用户账号，服务器进程拥有该账号的所有权限<BR> <INPUT
class=radio name=text1965 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.指定服务器 WWW 管理界面的 URL，包括虚拟目录、监听端口等信息<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>50 </TD>
<TD align=left height=212 width=607> 元是信元交换的单位。为控制差错，在信元中包括
CRC 校验和，校验和对___(7)___进行校验。 ©) <BR>答： <INPUT class=radio
name=text1973 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.整个信元<BR> <INPUT class=radio name=text1973
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.信元头<BR> <INPUT class=radio name=text1973
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.信元载荷(用户数据)<BR> <INPUT class=radio
name=text1973 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.信元的地址域<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>51 </TD>
<TD align=left height=212 width=607> 信元交换采用___(8)___技术进行复用。©)
<BR>答： <INPUT class=radio name=text1974
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.TDM<BR> <INPUT class=radio name=text1974
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.FDM<BR> <INPUT class=radio name=text1974
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.WDM<BR> <INPUT class=radio name=text1974
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.ATDM<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>52 </TD>
<TD align=left height=212 width=607> 对一路信号进行 FSK 调制时，若载波频率为
fc , 调制后的信号频率分别为 f1 和 f2 (f1<F2)，当对多路信号进行调制时，调制后各信号的频谱___(17)___。 <br
©)> 答： <INPUT class=radio name=text1983
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.相同<BR> <INPUT class=radio name=text1983
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.部分重叠<BR> <INPUT class=radio name=text1983
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.连续<BR> <INPUT class=radio name=text1983
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.不重叠且不连续<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>53 </TD>
<TD align=left height=212 width=607> WDM 与 FDM 工作方式相似， WDM
调制的是___(19)___。©) <BR>答： <INPUT class=radio name=text1985
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.时间<BR> <INPUT class=radio name=text1985
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.频率<BR> <INPUT class=radio name=text1985
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.波长<BR> <INPUT class=radio name=text1985
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.相位<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>54 </TD>
<TD align=left height=212 width=607> WDM 与 FDM 工作方式相似，ILD
是___(20)___使用的设备。 ©) <BR>答： <INPUT class=radio name=text1986
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