📄 模拟考试7.htm
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<TD align=middle height=212 width=29>15 </TD>
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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>
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<TD align=middle height=212 width=29>16 </TD>
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A向B发送消息P，并使用公钥体制进行数字签名。基于数论原理的RSA算法的安全性建立在 (32) 的基础上。©) <BR>答：
<INPUT class=radio name=text1553 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.大数难以分解因子<BR> <INPUT class=radio
name=text1553 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.大数容易分解因子<BR> <INPUT class=radio
name=text1553 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.容易获得公钥<BR> <INPUT class=radio name=text1553
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.私钥容易保密<BR></TD></TR>
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<TD align=middle height=212 width=29>17 </TD>
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A向B发送消息P，并使用公钥体制进行数字签名。为了防止会话劫持，Kerberos提供了 (34) 机制©) <BR>答： <INPUT
class=radio name=text1557 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.连续加密<BR> <INPUT class=radio name=text1557
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.报文认证<BR> <INPUT class=radio name=text1557
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.数字签名<BR> <INPUT class=radio name=text1557
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.密钥分发<BR></TD></TR>
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<TD align=middle height=212 width=29>18 </TD>
<TD align=left height=212 width=607> ISO还定义了5个管理功能域， (37)
属于性能管理域。©) <BR>答： <INPUT class=radio name=text1562
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.故障告警<BR> <INPUT class=radio name=text1562
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.软件管理<BR> <INPUT class=radio name=text1562
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.2E作负载监视<BR> <INPUT class=radio name=text1562
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.访问控制<BR></TD></TR>
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<TD align=middle height=212 width=29>19 </TD>
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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>20 </TD>
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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，则代理发出 (39)
报文。©) <BR>答： <INPUT class=radio name=text1566
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.Information<BR> <INPUT class=radio
name=text1566 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.Exception<BR> <INPUT class=radio
name=text1566 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.Trap<BR> <INPUT class=radio name=text1566
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.Interrupt<BR></TD></TR>
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<TD align=middle height=212 width=29>21 </TD>
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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>
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<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>
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<TD align=middle height=212 width=29>23 </TD>
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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>
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<TD align=middle height=212 width=29>24 </TD>
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采用可变长子网掩码技术可以把大的网络分成小的子网，如果分配给用户Xl的网络号为196．25．64．0，则指定给Xl的子网掩码为 (48) ©)
<BR>答： <INPUT class=radio name=text1581
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.255．255．255．0<BR> <INPUT class=radio
name=text1581 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.255．255．250．0<BR> <INPUT class=radio
name=text1581 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.255．255．248．0<BR> <INPUT class=radio
name=text1581 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.255．255．240．0<BR></TD></TR>
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<TD align=middle height=212 width=29>25 </TD>
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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>
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<TD align=middle height=212 width=29>26 </TD>
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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>
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<TD align=middle height=212 width=29>27 </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'"
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