📄 模拟考试5.htm
字号:
value=C>C.6backbone <BR> <INPUT class=radio
name=text1550 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.6plane<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>16 </TD>
<TD align=left height=212 width=607>
A向B发送消息P，并使用公钥体制进行数字签名。设E表示公钥，D表示私钥，则B要保留的证据是 (31) 。©) <BR>答： <INPUT
class=radio name=text1552 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.EA(P)<BR> <INPUT class=radio name=text1552
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.EB(P)<BR> <INPUT class=radio name=text1552
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.DA(P)<BR> <INPUT class=radio name=text1552
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.DB(P)<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>17 </TD>
<TD align=left height=212 width=607>
IAB制定的网络管理协议是SNMP，在SNMP管理框架中使用的管理信息库为 (38) 。©) <BR>答： <INPUT
class=radio name=text1565 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.MIB—1<BR> <INPUT class=radio name=text1565
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.MIB-2<BR> <INPUT class=radio name=text1565
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.MIB—3<BR> <INPUT class=radio name=text1565
onblur="this.className='radio'"
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>18 </TD>
<TD align=left height=212 width=607>
管理站(Manager)通过GetRequest命令查询代理(Agent)中的管理信息库，如果代理需要向管理站报告一个异常事件， (40)
事件不属于异常事件。©) <BR>答： <INPUT class=radio name=text1567
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.系统重启动<BR> <INPUT class=radio name=text1567
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.链路失效<BR> <INPUT class=radio name=text1567
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.报文认证失败<BR> <INPUT class=radio name=text1567
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.检索的变量不存在<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>19 </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>20 </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>21 </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>22 </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，假设用户Xl有2000台主机，则至少应给他分配
(47) 个C类网络©) <BR>答： <INPUT class=radio name=text1579
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.4<BR> <INPUT class=radio name=text1579
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.8<BR> <INPUT class=radio name=text1579
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.10<BR> <INPUT class=radio name=text1579
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.16<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。当网络规模扩大时，该算法传送的路由信息太多，增加了网络负载，后来又出现了执行最短路径优先算法的IGP。按照这种协议，每个路由器向网络中的其他路由器发布
(58) ©) <BR>答： <INPUT class=radio name=text1596
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.它连接的所有链路的状态信息<BR> <INPUT class=radio
name=text1596 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.它的路由表<BR> <INPUT class=radio name=text1596
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.与它相邻的路由器的地址<BR> <INPUT class=radio
name=text1596 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.所有目标结点的URL<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>25 </TD>
<TD align=left height=212 width=607> 帧中继网的虚电路建立在 (61) ©)
<BR>答： <INPUT class=radio name=text1600
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.数据链路层<BR> <INPUT class=radio name=text1600
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.网络层<BR> <INPUT class=radio name=text1600
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.传输层<BR> <INPUT class=radio name=text1600
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.会话层<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，要保证环网的正常运行，环的时延必须有一个最低限度，即__(2)__。©) <BR>答： <INPUT
class=radio name=text1644 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.数据帧长<BR> <INPUT class=radio name=text1644
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.令牌帧长<BR> <INPUT class=radio name=text1644
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.信号传播时延<BR> <INPUT class=radio name=text1644
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.站点个数<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，则环上可能存在的最大时延是©)
<BR>答： <INPUT class=radio name=text1647
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.9<BR> <INPUT class=radio name=text1647
onblur="this.className='radio'"
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -