📄 模拟考试4.htm
字号:
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.MIB-4<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>16 </TD>
<TD align=left height=212 width=607>
IEEE802．11定义了无线局域网的两种工作模式，其中的 (41)
模式是一种点对点连接的网络，不需要无线接入点和有线网络的支持，用无线网卡连接的设备之间可以直接通信。©) <BR>答： <INPUT
class=radio name=text1570 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.Roaming<BR> <INPUT class=radio name=text1570
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.AdHoc<BR> <INPUT class=radio name=text1570
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.Infrastructure<BR> <INPUT class=radio
name=text1570 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.DiffuselR<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>17 </TD>
<TD align=left height=212 width=607> IEEE802．11
MAC层具有多种功能，其中分布式协调功能采用的是 (43) 协议©) <BR>答： <INPUT class=radio
name=text1574 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.CSMA／CA<BR> <INPUT class=radio name=text1574
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.CSMA／CB<BR> <INPUT class=radio name=text1574
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.CSMA／CD<BR> <INPUT class=radio name=text1574
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.CSMAJCF<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>18 </TD>
<TD align=left height=212 width=607>
采用可变长子网掩码技术可以把大的网络分成小的子网，例如把子网掩码为255．255．0．0的网络40．15．0．0分为两个子网，假设第一个子网为40．15．0．0／17，则第二个子网为
(46) 。©) <BR>答： <INPUT class=radio name=text1578
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.40．15．1．0／17<BR> <INPUT class=radio
name=text1578 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.40．15．2．0／17<BR> <INPUT class=radio
name=text1578 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.40．15．100．0／17<BR> <INPUT class=radio
name=text1578 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.40．15．128．0／17<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>19 </TD>
<TD align=left height=212 width=607>
采用可变长子网掩码技术可以把大的网络分成小的子网，假设给用户X2分配的C类网络号为196．25．16．0～196．25．31．0，则X2的子网掩码应为
(49) ©) <BR>答： <INPUT class=radio name=text1583
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.255．255．255．0 <BR> <INPUT class=radio
name=text1583 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.255．255．250．0 <BR> <INPUT class=radio
name=text1583 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.255．255．248．0<BR> <INPUT class=radio
name=text1583 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.255．255．240．0<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>20 </TD>
<TD align=left height=212 width=607>
在Linux操作系统下安装网卡，如果操作系统没有内置的驱动程序，那么用户必须 (52) ©) <BR>答： <INPUT
class=radio name=text1588 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.用ifconfig命令配置网卡<BR> <INPUT class=radio
name=text1588 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.手工修改‘／dev／eth0’文件<BR> <INPUT class=radio
name=text1588 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.手工安装驱动程序且重新编译Linux内核<BR> <INPUT class=radio
name=text1588 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.重启操作系统<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>21 </TD>
<TD align=left height=212 width=607>
为一块设备名为eth0的网卡分配p地址和子网掩码的命令是： (53) ©) <BR>答： <INPUT class=radio
name=text1590 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.serserialeth0202．112．58．200netmask255．255．255．0<BR>
<INPUT class=radio name=text1590 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.ifconfigeth0202．112．58．200netmask255．255．255．0<BR>
<INPUT class=radio name=text1590 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.minicometh0202．112．58．200netmask255．255．255．0<BR>
<INPUT class=radio name=text1590 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.mounteth0202．112．58．200netmask255．255．255．0<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>22 </TD>
<TD align=left height=212 width=607>
如果不打算使用DNS或者NIS进行地址解析，则必须将所有的主机名都放入文件 (54) 中©) <BR>答： <INPUT
class=radio name=text1591 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.／dev／hosts<BR> <INPUT class=radio
name=text1591 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.／dev／networks<BR> <INPUT class=radio
name=text1591 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.／etc／hosts<BR> <INPUT class=radio
name=text1591 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.／em／networks<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>23 </TD>
<TD align=left height=212 width=607>
在自治系统内部的各个路由器之间，运行的是内部网关协议IGP。早期的IGP叫做_(56) ©) <BR>答： <INPUT
class=radio name=text1593 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.RIP<BR> <INPUT class=radio name=text1593
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.GGP<BR> <INPUT class=radio name=text1593
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.BGP<BR> <INPUT class=radio name=text1593
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.OSPF<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>24 </TD>
<TD align=left height=212 width=607>
在自治系统内部的各个路由器之间，运行的是内部网关协议IGP。在不同自治系统的路由器之间，运行外部网关协议EGP，典型的EGP是 (60) 。©)
<BR>答： <INPUT class=radio name=text1599
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.RIP<BR> <INPUT class=radio name=text1599
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.GGP<BR> <INPUT class=radio name=text1599
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.BGP<BR> <INPUT class=radio name=text1599
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.OSPP<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>25 </TD>
<TD align=left height=212 width=607> 在用户平面采用的协议是 (62) 。©)
<BR>答： <INPUT class=radio name=text1601
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.X．28<BR> <INPUT class=radio name=text1601
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.HDLC<BR> <INPUT class=radio name=text1601
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.LAP-D<BR> <INPUT class=radio name=text1601
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.LAP-F<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>26 </TD>
<TD align=left height=212 width=607>
如果沿着帧传送方向出现了拥塞，则把帧地址字段中的， (63) 位设置为1©) <BR>答： <INPUT class=radio
name=text1603 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.BECN<BR> <INPUT class=radio name=text1603
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.FECN<BR> <INPUT class=radio name=text1603
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.DECN<BR> <INPUT class=radio name=text1603
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.TECN<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>27 </TD>
<TD align=left height=212 width=607> IEEE802.5令牌环（Tokenm
Ring）网中，时延是由__(1)__决定。©) <BR>答： <INPUT class=radio name=text1643
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.站点时延和信号传话时延<BR> <INPUT class=radio
name=text1643 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.令牌帧长短和数据帧长短<BR> <INPUT class=radio
name=text1643 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.电缆长度和站点个数<BR> <INPUT class=radio
name=text1643 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.数据传输单和信号传播速度<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>28 </TD>
<TD align=left height=212 width=607> 设有某一个令牌环网长度为 400 米，环上有
28 个站点，其数据传输率为 4MbpS，环上信号的传播速度为 200 米/μS，每个站点具有 1bit
时延，当始终有一半站点打开工作时，要保证环网的正常运行，至少还要将电缆的长度增加__(5)__米。©) <BR>答： <INPUT
class=radio name=text1649 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.50<BR> <INPUT class=radio name=text1649
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.100<BR> <INPUT class=radio name=text1649
onblur="this.className='radio'"
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