📄 模拟考试16.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>
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>
<TR class=trh1>
<TD align=middle height=212 width=29>18 </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。另外报文中还加入了 (35) ，用于防止重发攻击(replay attack)。©) <BR>答：
<INPUT class=radio name=text1559 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.伪随机数<BR> <INPUT class=radio name=text1559
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.时间标记<BR> <INPUT class=radio name=text1559
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.私有密钥<BR> <INPUT class=radio name=text1559
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.数字签名<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>19 </TD>
<TD align=left height=212 width=607> 国际标准化组织制定的OSI网络管理协议是
(36) ©) <BR>答： <INPUT class=radio name=text1561
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.CMIP<BR> <INPUT class=radio name=text1561
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.LMMP<BR> <INPUT class=radio name=text1561
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.CMOT<BR> <INPUT class=radio name=text1561
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.SGMP<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>20 </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>
<TR class=trh1>
<TD align=middle height=212 width=29>21 </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>22 </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，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>
<TR class=trh1>
<TD align=middle height=212 width=29>23 </TD>
<TD align=left height=212 width=607>
IEEE802．11的物理层规定了三种传输技术，即红外技术、直接序列扩频(DSSS)和跳频扩频(FHSS)技术，后两种扩频技术都工作在 (42)
的ISM频段。©) <BR>答： <INPUT class=radio name=text1572
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.600MHz<BR> <INPUT class=radio name=text1572
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.800MHz<BR> <INPUT class=radio name=text1572
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.2．4GHz<BR> <INPUT class=radio name=text1572
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.19．2GHz<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>24 </TD>
<TD align=left height=212 width=607> IEEE802．11
MAC层具有多种功能，用于支持多媒体应用的是 (44) 功能©) <BR>答： <INPUT class=radio
name=text1576 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.BCF <BR> <INPUT class=radio name=text1576
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.DCF<BR> <INPUT class=radio name=text1576
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.PCF<BR> <INPUT class=radio name=text1576
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.QCF<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>25 </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，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>
<TR class=trh1>
<TD align=middle height=212 width=29>26 </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>27 </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>28 </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'"
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