?? 模擬考試16.htm
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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>
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<TD align=middle height=212 width=29>16 </TD>
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A向B發(fā)送消息P，并使用公鑰體制進行數(shù)字簽名。設E表示公鑰，D表示私鑰，則B要保留的證據(jù)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>17 </TD>
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A向B發(fā)送消息P，并使用公鑰體制進行數(shù)字簽名。為了防止會話劫持，Kerberos提供了 (34) 機制©) <BR>答： <INPUT
class=radio name=text1557 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.連續(xù)加密<BR> <INPUT class=radio name=text1557
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.報文認證<BR> <INPUT class=radio name=text1557
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.數(shù)字簽名<BR> <INPUT class=radio name=text1557
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.密鑰分發(fā)<BR></TD></TR>
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<TD align=middle height=212 width=29>18 </TD>
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A向B發(fā)送消息P，并使用公鑰體制進行數(shù)字簽名。另外報文中還加入了 (35) ，用于防止重發(fā)攻擊(replay attack)。©) <BR>答：
<INPUT class=radio name=text1559 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.偽隨機數(shù)<BR> <INPUT class=radio name=text1559
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.時間標記<BR> <INPUT class=radio name=text1559
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.私有密鑰<BR> <INPUT class=radio name=text1559
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.數(shù)字簽名<BR></TD></TR>
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<TD align=middle height=212 width=29>19 </TD>
<TD align=left height=212 width=607> 國際標準化組織制定的OSI網(wǎng)絡管理協(xié)議是
(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>
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<TD align=middle height=212 width=29>20 </TD>
<TD align=left height=212 width=607> ISO還定義了5個管理功能域， (37)
屬于性能管理域。©) <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.軟件管理<BR> <INPUT class=radio name=text1562
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.2E作負載監(jiān)視<BR> <INPUT class=radio name=text1562
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.訪問控制<BR></TD></TR>
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<TD align=middle height=212 width=29>21 </TD>
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IAB制定的網(wǎng)絡管理協(xié)議是SNMP，在SNMP管理框架中使用的管理信息庫為 (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>
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管理站(Manager)通過GetRequest命令查詢代理(Agent)中的管理信息庫，如果代理需要向管理站報告一個異常事件，則代理發(fā)出 (39)
報文。©) <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>23 </TD>
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IEEE802．11的物理層規(guī)定了三種傳輸技術，即紅外技術、直接序列擴頻(DSSS)和跳頻擴頻(FHSS)技術，后兩種擴頻技術都工作在 (42)
的ISM頻段。©) <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層具有多種功能，用于支持多媒體應用的是 (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>
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<TD align=middle height=212 width=29>25 </TD>
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采用可變長子網(wǎng)掩碼技術可以把大的網(wǎng)絡分成小的子網(wǎng)，如果分配給用戶Xl的網(wǎng)絡號為196．25．64．0，則指定給Xl的子網(wǎng)掩碼為 (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>
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如果不打算使用DNS或者NIS進行地址解析，則必須將所有的主機名都放入文件 (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>
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在自治系統(tǒng)內部的各個路由器之間，運行的是內部網(wǎng)關協(xié)議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>
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<TD align=middle height=212 width=29>28 </TD>
<TD align=left height=212 width=607>
在自治系統(tǒng)內部的各個路由器之間，運行的是內部網(wǎng)關協(xié)議IGP。當網(wǎng)絡規(guī)模擴大時，該算法傳送的路由信息太多，增加了網(wǎng)絡負載，后來又出現(xiàn)了執(zhí)行最短路徑優(yōu)先算法的IGP。按照這種協(xié)議，每個路由器向網(wǎng)絡中的其他路由器發(fā)布
(58) ©) <BR>答： <INPUT class=radio name=text1596
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.它連接的所有鏈路的狀態(tài)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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